wip
This commit is contained in:
aynic.os
@@ -1,218 +1,283 @@
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# shellcheck shell=sh
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## rc_function.sh defines customs shell functions
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# author: Yann "aya" Autissier
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# license: MIT
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# updated: 2021/03/04
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## force() runs a command sine die
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force() {
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if [ $# -gt 0 ]; then
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while true; do
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"$@"
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sleep 1
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done
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fi
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if [ $# -gt 0 ]; then
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while true; do
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"$@"
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sleep 1
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done
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fi
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}
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## force8() runs a command sine die if not already running
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force8() {
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if [ $# -gt 0 ]; then
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while true; do
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# awk expression to match $@
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[ "$(ps wwx -o args 2>/dev/null |awk -v field="${PS_X_FIELD:-1}" '
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BEGIN {nargs=split("'"$*"'",args)}
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# if match first field
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$field == args[1] {
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matched=1;
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# match following fields
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for (i=1;i<=NF-field;i++) {
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if ($(i+field) == args[i+1]) {matched++}
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}
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# all fields matched
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if (matched == nargs) {found++}
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}
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END {print found+0}'
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)" = 0 ] && "$@"
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sleep 1
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done
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fi
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if [ $# -gt 0 ]; then
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while true; do
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# awk expression to match $@
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[ "$(ps wwx -o args 2>/dev/null |awk -v field="${PS_X_FIELD:-1}" '
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BEGIN { nargs=split("'"$*"'",args); }
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# first field matched
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$field == args[1] {
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matched=1;
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# match following fields
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for (i=1;i<=NF-field;i++) {
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if ($(i+field) == args[i+1]) { matched++; }
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};
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# all fields matched
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if (matched == nargs) { found++; }
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}
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END { print found+0; }'
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)" = 0 ] && "$@"
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sleep 1
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done
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fi
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}
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## load_average() prints the current load average
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load_average() {
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awk '{printf "%.1f\n" $1}' /proc/loadavg 2>/dev/null \
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|| uptime 2>/dev/null |awk '{printf "%.1f\n", $(NF-2)}'
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}
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awk '{printf "%.1f\n" $1}' /proc/loadavg 2>/dev/null\
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|| uptime 2>/dev/null |awk '{printf "%.1f\n", $(NF-2)}'
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}
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## process_count() prints number of "processes"/"running processes"/"D-state"
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process_count() {
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ps ax -o stat 2>/dev/null |awk '
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$1 ~ /R/ {process_running++};
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$1 ~ /D/ {process_dstate++};
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END {
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print NR-1"/"process_running+0"/"process_dstate+0;
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}'
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ps ax -o stat 2>/dev/null |awk '
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$1 ~ /R/ {process_running++};
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$1 ~ /D/ {process_dstate++};
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END { print NR-1"/"process_running+0"/"process_dstate+0; }'
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}
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## prompt_set() exports custom PROMPT_COMMAND
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prompt_set() {
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case "${TERM}" in
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screen*)
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ESCAPE_CODE_DCS="\033k"
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ESCAPE_CODE_ST="\033\\"
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;;
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linux*|xterm*|rxvt*)
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ESCAPE_CODE_DCS="\033]0;"
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ESCAPE_CODE_ST="\007"
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;;
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*)
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;;
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esac
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# in a screen
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if [ -n "${STY}" ]; then
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export PROMPT_COMMAND='printf "${ESCAPE_CODE_DCS:-\033]0;}%s${ESCAPE_CODE_ST:-\007}" "${PWD##*/}"'
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else
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export PROMPT_COMMAND='printf "${ESCAPE_CODE_DCS:-\033]0;}%s@%s:%s${ESCAPE_CODE_ST:-\007}" "${USER}" "${HOSTNAME%%.*}" "${PWD##*/}"'
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fi
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unset ESCAPE_CODE_DCS ESCAPE_CODE_ST
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case "${TERM}" in
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screen*)
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ESCAPE_CODE_DCS="\033k"
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ESCAPE_CODE_ST="\033\\"
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;;
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linux*|xterm*|rxvt*)
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ESCAPE_CODE_DCS="\033]0;"
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ESCAPE_CODE_ST="\007"
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;;
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*)
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;;
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esac
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# in a screen
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if [ -n "${STY}" ]; then
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export PROMPT_COMMAND='printf\
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"${ESCAPE_CODE_DCS:-\033]0;}%s${ESCAPE_CODE_ST:-\007}"\
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"${PWD##*/}"'
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else
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export PROMPT_COMMAND='printf\
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"${ESCAPE_CODE_DCS:-\033]0;}%s@%s:%s${ESCAPE_CODE_ST:-\007}"\
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"${USER}"\
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"${HOSTNAME%%.*}"\
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"${PWD##*/}"'
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fi
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unset ESCAPE_CODE_DCS ESCAPE_CODE_ST
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}
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## ps1_set() exports custom PS1
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ps1_set() {
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case "$0" in
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*sh)
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COLOR_DGRAY="\[\033[1;30m\]"
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COLOR_RED="\[\033[01;31m\]"
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COLOR_GREEN="\[\033[01;32m\]"
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COLOR_BROWN="\[\033[0;33m\]"
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COLOR_YELLOW="\[\033[01;33m\]"
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COLOR_BLUE="\[\033[01;34m\]"
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COLOR_CYAN="\[\033[0;36m\]"
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COLOR_GRAY="\[\033[0;37m\]"
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COLOR_NC="\[\033[0m\]"
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;;
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case "$0" in
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*sh)
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COLOR_DGRAY="\[\033[1;30m\]"
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COLOR_RED="\[\033[01;31m\]"
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COLOR_GREEN="\[\033[01;32m\]"
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COLOR_BROWN="\[\033[0;33m\]"
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COLOR_YELLOW="\[\033[01;33m\]"
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COLOR_BLUE="\[\033[01;34m\]"
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COLOR_CYAN="\[\033[0;36m\]"
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COLOR_GRAY="\[\033[0;37m\]"
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COLOR_RESET="\[\033[0m\]"
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;;
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*)
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;;
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esac
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PS1_STATUS="\$?"
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PS1_COUNT="${COLOR_DGRAY}[\`
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case \"$PS1_STATUS\" in
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0)
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printf \"${COLOR_BLUE}${PS1_STATUS}\";;
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1)
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printf \"${COLOR_YELLOW}${PS1_STATUS}\";;
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*)
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;;
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printf \"${COLOR_RED}${PS1_STATUS}\";;
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esac
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PS1_COUNT="${COLOR_DGRAY}[${COLOR_BLUE}\$(process_count 2>/dev/null)${COLOR_DGRAY}|${COLOR_BLUE}\$(user_count 2>/dev/null)${COLOR_DGRAY}|${COLOR_BLUE}\$(load_average 2>/dev/null)${COLOR_DGRAY}]${COLOR_NC}"
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PS1_END="${COLOR_DGRAY}\$(if [ \"\$(id -u)\" = 0 ]; then printf \"#\"; else printf \"\$\"; fi)${COLOR_NC}"
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if type __git_ps1 >/dev/null 2>&1; then
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PS1_GIT="\$(__git_ps1 2>/dev/null \" (%s)\")"
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type process_count >/dev/null 2>&1 && printf\
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\"${COLOR_DGRAY}|${COLOR_BLUE}%s\"\
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\"\$(process_count 2>/dev/null)\"
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type user_count >/dev/null 2>&1 && printf\
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\"${PS1_COUNT}${COLOR_DGRAY}|${COLOR_BLUE}%s\"\
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\"\$(user_count 2>/dev/null)\"
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type load_average >/dev/null 2>&1 && printf\
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\"${PS1_COUNT}${COLOR_DGRAY}|${COLOR_BLUE}%s\"\
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\"\$(load_average 2>/dev/null)\"
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\`${COLOR_DGRAY}]${COLOR_RESET}"
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PS1_END="${COLOR_DGRAY}\$(
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if [ \"\$(id -u)\" = 0 ]; then
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printf \"#\";
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else
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PS1_GIT="\$(BRANCH=\$(git rev-parse --abbrev-ref HEAD 2>/dev/null); [ -n \"\${BRANCH}\" ] && printf \" (\${BRANCH})\")"
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printf \"\$\";
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fi
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PS1_GIT="${COLOR_CYAN}${PS1_GIT}${COLOR_NC}"
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PS1_HOSTNAME_COLOR="\`case \"\${ENV}\" in [Pp][Rr][0Oo][Dd]*) printf \"${COLOR_RED}\";; *) if [ -n \"\${ENV}\" ]; then printf \"${COLOR_YELLOW}\"; else printf \"${COLOR_GREEN}\"; fi;; esac\`"
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PS1_HOSTNAME="${PS1_HOSTNAME_COLOR}\$(hostname |sed 's/\..*//')${COLOR_NC}"
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PS1_USER_COLOR="\$(if [ \"\$(id -u)\" = 0 ]; then printf \"${COLOR_RED}\"; else printf \"${COLOR_BROWN}\"; fi)"
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PS1_USER="${PS1_USER_COLOR}\$(id -nu)${COLOR_NC}"
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PS1_WORKDIR="${COLOR_GRAY}\$(pwd |sed 's|^'\${HOME}'\(/.*\)*$|~\1|')${COLOR_NC}"
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export PS1="${PS1_COUNT}${PS1_USER}${COLOR_DGRAY}@${PS1_HOSTNAME}${COLOR_DGRAY}:${PS1_WORKDIR}${PS1_GIT}${PS1_END} "
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unset PS1_COUNT PS1_END PS1_GIT PS1_HOSTNAME PS1_HOSTNAME_COLOR PS1_USER PS1_USER_COLOR PS1_WORKDIR
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)${COLOR_RESET}"
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PS1_GIT="\$(
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if type __git_ps1 >/dev/null 2>&1; then
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printf \"\$(__git_ps1 2>/dev/null \" (%s)\")\"
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else
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printf \"\$(BRANCH=\$(git rev-parse --abbrev-ref HEAD 2>/dev/null);\
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[ -n \"\${BRANCH}\" ] && printf \" (\${BRANCH})\")\"
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fi
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)"
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PS1_GIT="${COLOR_CYAN}${PS1_GIT}${COLOR_RESET}"
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PS1_HOSTNAME_COLOR="\`case \"\${ENV}\" in
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[Pp][Rr][0Oo][Dd]*)
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printf \"${COLOR_RED}\";;
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*)
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if [ -n \"\${ENV}\" ]; then
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printf \"${COLOR_YELLOW}\";
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else
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printf \"${COLOR_GREEN}\";
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fi;;
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esac\`"
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PS1_HOSTNAME="${PS1_HOSTNAME_COLOR}\$(hostname |sed 's/\..*//')${COLOR_RESET}"
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PS1_USER_COLOR="\$(
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if [ \"\$(id -u)\" = 0 ]; then
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printf \"${COLOR_RED}\";
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else
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printf \"${COLOR_BROWN}\";
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fi
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)"
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PS1_USER="${PS1_USER_COLOR}\$(id -nu):\$(id -u)${COLOR_RESET}"
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PS1_WORKDIR="${COLOR_GRAY}\$(
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pwd |sed 's|^'\${HOME}'\(/.*\)*$|~\1|'
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)${COLOR_RESET}"
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PS1="${PS1_COUNT}${PS1_USER}${COLOR_DGRAY}@${PS1_HOSTNAME}"
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PS1="${PS1}${COLOR_DGRAY}:${PS1_WORKDIR}${PS1_GIT}${PS1_END} "
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export 'PS1'
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unset PS1_COUNT PS1_END PS1_GIT PS1_HOSTNAME PS1_HOSTNAME_COLOR\
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PS1_USER PS1_USER_COLOR PS1_STATUS PS1_WORKDIR
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}
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## screen_attach() attaches existing screen session or creates a new one
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screen_attach() {
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command -v screen >/dev/null 2>&1 || return
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SCREEN_SESSION="$(id -nu)@$(hostname |sed 's/\..*//')"
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if [ -z "${STY}" ]; then
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# attach screen in tmux window 0 only ;)
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[ -n "${TMUX}" ] && [ "$(tmux list-window 2>/dev/null |awk '$NF == "(active)" {print $1}' |sed 's/:$//')" != "0" ] && return
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printf 'Attaching screen.' && sleep 1 && printf '.' && sleep 1 && printf '.' && sleep 1
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exec screen -xRR -S "${SCREEN_SESSION}"
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fi
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unset SCREEN_SESSION
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command -v screen >/dev/null 2>&1 || return
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SCREEN_SESSION="$(id -nu)@$(hostname |sed 's/\..*//')"
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if [ -z "${STY}" ]; then
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# attach screen in tmux window 0 only ;)
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[ -n "${TMUX}" ] \
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&& [ "$(tmux list-window 2>/dev/null |awk '$NF == "(active)" {print $1}'\
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|sed 's/:$//')" != "0" ] \
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&& return
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printf 'Attaching screen.' && sleep 1\
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&& printf '.' && sleep 1\
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&& printf '.' && sleep 1
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exec screen -xRR -S "${SCREEN_SESSION}"
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fi
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unset SCREEN_SESSION
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}
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## screen_detach() detaches current screen session
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screen_detach() {
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screen -d
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screen -d
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}
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## ssh_add() loads all private keys in ~/.ssh/ to ssh agent
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ssh_add() {
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command -v ssh-agent >/dev/null 2>&1 && command -v ssh-add >/dev/null 2>&1 || return
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SSH_AGENT_DIR="/tmp/ssh-$(id -u)"
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SSH_AGENT_SOCK="${SSH_AGENT_DIR}/agent@$(hostname |sed 's/\..*//')"
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# launch a new agent
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if [ -z "${SSH_AUTH_SOCK}" ]; then
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[ ! -d "${SSH_AGENT_DIR}" ] && mkdir -p "${SSH_AGENT_DIR}" 2>/dev/null && chmod 0700 "${SSH_AGENT_DIR}"
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# search for an already running agent
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if ps wwx -o args |awk '$1 ~ "ssh-agent$" && $3 == "'"${SSH_AGENT_SOCK}"'"' |wc -l |grep -q 0; then
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rm -f "${SSH_AGENT_SOCK}"
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ssh-agent -a "${SSH_AGENT_SOCK}" >/dev/null 2>&1
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fi
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command -v ssh-agent >/dev/null 2>&1 && command -v ssh-add >/dev/null 2>&1 || return
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SSH_AGENT_DIR="/tmp/ssh-$(id -u)"
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SSH_AGENT_SOCK="${SSH_AGENT_DIR}/agent@$(hostname |sed 's/\..*//')"
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# launch a new agent
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if [ -z "${SSH_AUTH_SOCK}" ]; then
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[ ! -d "${SSH_AGENT_DIR}" ] \
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&& mkdir -p "${SSH_AGENT_DIR}" 2>/dev/null\
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&& chmod 0700 "${SSH_AGENT_DIR}"
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# search for an already running agent
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if ps wwx -o args |awk '$1 ~ "ssh-agent$" && $3 == "'"${SSH_AGENT_SOCK}"'"' |wc -l |grep -q 0; then
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rm -f "${SSH_AGENT_SOCK}"
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ssh-agent -a "${SSH_AGENT_SOCK}" >/dev/null 2>&1
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fi
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# attach to agent
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export SSH_AUTH_SOCK="${SSH_AUTH_SOCK:-${SSH_AGENT_SOCK}}"
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# list private keys to add
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# shellcheck disable=SC2068
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for dir in ${@:-${HOME}/.ssh}; do
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if [ "${SSH_ADD_RECURSIVE:-}" = true ]; then
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GREP_RECURSIVE_FLAG="r"
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else
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GREP_RECURSIVE_CHAR="*"
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fi
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SSH_PRIVATE_KEYS="${SSH_PRIVATE_KEYS:-} ${dir}/id_rsa $(grep -l${GREP_RECURSIVE_FLAG:-} 'PRIVATE KEY' "${dir}"/"${GREP_RECURSIVE_CHAR:-}" 2>/dev/null |grep -vw "${dir}"/id_rsa)"
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done
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# shellcheck disable=SC2086
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printf '%s\n' ${SSH_PRIVATE_KEYS} |while read -r file; do
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[ -r "${file}" ] || continue
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# add private key to agent
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ssh-add -l |grep -q "$(ssh-keygen -lf "${file}" 2>/dev/null |awk '{print $2}')" 2>/dev/null || ssh-add "${file}"
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done
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unset GREP_RECURSIVE_CHAR GREP_RECURSIVE_FLAG SSH_AGENT_DIR SSH_AGENT_SOCK SSH_PRIVATE_KEYS
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fi
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# attach to agent
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export SSH_AUTH_SOCK="${SSH_AUTH_SOCK:-${SSH_AGENT_SOCK}}"
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# list private keys to add
|
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# shellcheck disable=SC2068
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for dir in ${@:-${HOME}/.ssh}; do
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if [ "${SSH_ADD_RECURSIVE:-}" = true ]; then
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GREP_RECURSIVE_FLAG="r"
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else
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GREP_RECURSIVE_CHAR="*"
|
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fi
|
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SSH_PRIVATE_KEYS="${SSH_PRIVATE_KEYS:-} ${dir}/id_rsa $(grep -l${GREP_RECURSIVE_FLAG:-} 'PRIVATE KEY' "${dir}"/"${GREP_RECURSIVE_CHAR:-}" 2>/dev/null |grep -vw "${dir}"/id_rsa)"
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done
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# shellcheck disable=SC2086
|
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printf '%s\n' ${SSH_PRIVATE_KEYS} |while read -r file; do
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[ -r "${file}" ] || continue
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# add private key to agent
|
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ssh-add -l |grep -q "$(ssh-keygen -lf "${file}" 2>/dev/null |awk '{print $2}')" 2>/dev/null || ssh-add "${file}"
|
||||
done
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||||
unset GREP_RECURSIVE_CHAR GREP_RECURSIVE_FLAG SSH_AGENT_DIR SSH_AGENT_SOCK SSH_PRIVATE_KEYS
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}
|
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|
||||
## ssh_del() removes all private keys in ~/.ssh/ from ssh agent
|
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ssh_del() {
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command -v ssh-add >/dev/null 2>&1 || return
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# attach to agent
|
||||
if [ -z "${SSH_AUTH_SOCK}" ]; then
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return
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command -v ssh-add >/dev/null 2>&1 || return
|
||||
# attach to agent
|
||||
if [ -z "${SSH_AUTH_SOCK}" ]; then
|
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return
|
||||
fi
|
||||
# list private keys to del
|
||||
# shellcheck disable=SC2068
|
||||
for dir in ${@:-${HOME}/.ssh}; do
|
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if [ "${SSH_DEL_RECURSIVE:-}" = true ]; then
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||||
GREP_RECURSIVE_FLAG="r"
|
||||
else
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||||
GREP_RECURSIVE_CHAR="*"
|
||||
fi
|
||||
# list private keys to del
|
||||
# shellcheck disable=SC2068
|
||||
for dir in ${@:-${HOME}/.ssh}; do
|
||||
if [ "${SSH_DEL_RECURSIVE:-}" = true ]; then
|
||||
GREP_RECURSIVE_FLAG="r"
|
||||
else
|
||||
GREP_RECURSIVE_CHAR="*"
|
||||
fi
|
||||
SSH_PRIVATE_KEYS="${SSH_PRIVATE_KEYS:-} ${dir}/id_rsa $(grep -l${GREP_RECURSIVE_FLAG:-} 'PRIVATE KEY' "${dir}"/"${GREP_RECURSIVE_CHAR:-}" 2>/dev/null |grep -vw "${dir}"/id_rsa)"
|
||||
done
|
||||
# shellcheck disable=SC2086
|
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printf '%s\n' ${SSH_PRIVATE_KEYS} |while read -r file; do
|
||||
[ -r "${file}" ] || continue
|
||||
# remove private key from agent
|
||||
ssh-add -l |grep -q "$(ssh-keygen -lf "${file}" 2>/dev/null |awk '{print $2}')" 2>/dev/null && ssh-add -d "${file}"
|
||||
done
|
||||
unset GREP_RECURSIVE_CHAR GREP_RECURSIVE_FLAG SSH_PRIVATE_KEYS
|
||||
SSH_PRIVATE_KEYS="${SSH_PRIVATE_KEYS:-} ${dir}/id_rsa $(grep -l${GREP_RECURSIVE_FLAG:-} 'PRIVATE KEY' "${dir}"/"${GREP_RECURSIVE_CHAR:-}" 2>/dev/null |grep -vw "${dir}"/id_rsa)"
|
||||
done
|
||||
# shellcheck disable=SC2086
|
||||
printf '%s\n' ${SSH_PRIVATE_KEYS} |while read -r file; do
|
||||
[ -r "${file}" ] || continue
|
||||
# remove private key from agent
|
||||
ssh-add -l |grep -q "$(ssh-keygen -lf "${file}" 2>/dev/null |awk '{print $2}')" 2>/dev/null && ssh-add -d "${file}"
|
||||
done
|
||||
unset GREP_RECURSIVE_CHAR GREP_RECURSIVE_FLAG SSH_PRIVATE_KEYS
|
||||
}
|
||||
|
||||
## tmux_attach() attaches existing tmux session or creates a new one
|
||||
tmux_attach() {
|
||||
command -v tmux >/dev/null 2>&1 || return
|
||||
TMUX_SESSION="$(id -nu)@$(hostname |sed 's/\..*//')"
|
||||
if [ -z "${TMUX}" ]; then
|
||||
printf 'Attaching tmux.' && sleep 1 && printf '.' && sleep 1 && printf '.' && sleep 1
|
||||
exec tmux -L"${TMUX_SESSION}" new-session -A -s"${TMUX_SESSION}"
|
||||
fi
|
||||
unset TMUX_SESSION
|
||||
command -v tmux >/dev/null 2>&1 || return
|
||||
TMUX_SESSION="$(id -nu)@$(hostname |sed 's/\..*//')"
|
||||
if [ -z "${TMUX}" ]; then
|
||||
printf 'Attaching tmux.' && sleep 1\
|
||||
&& printf '.' && sleep 1\
|
||||
&& printf '.' && sleep 1
|
||||
exec tmux -L"${TMUX_SESSION}" new-session -A -s"${TMUX_SESSION}"
|
||||
fi
|
||||
unset TMUX_SESSION
|
||||
}
|
||||
|
||||
## tmux_detach() detaches current tmux session
|
||||
tmux_detach() {
|
||||
tmux detach
|
||||
tmux detach
|
||||
}
|
||||
|
||||
## user_count() prints number of "users sessions"/"users"/"logged users"
|
||||
user_count() {
|
||||
ps ax -o user,tty 2>/dev/null |awk '
|
||||
$2 ~ /^(pts|tty)/ {users_session++; logged[$1]++;};
|
||||
{count[$1]++;}
|
||||
END {
|
||||
for (uc in count) {c = c" "uc;}; users_count=split(c,v," ")-1;
|
||||
for (ul in logged) {l = l" "ul;}; users_logged=split(l,v," ")-1;
|
||||
print users_session+0"/"users_count"/"users_logged;
|
||||
}'
|
||||
ps ax -o user,tty 2>/dev/null |awk '
|
||||
$2 ~ /^(pts|tty)/ { users_session++; logged[$1]++; };
|
||||
{ count[$1]++; }
|
||||
END {
|
||||
for (uc in count) { c = c" "uc; }; users_count=split(c,v," ")-1;
|
||||
for (ul in logged) { l = l" "ul; }; users_logged=split(l,v," ")-1;
|
||||
print users_session+0"/"users_count"/"users_logged;
|
||||
}'
|
||||
}
|
||||
|
||||
# vim:ts=2:sw=2:sts=2:et
|
||||
|
||||
Reference in New Issue
Block a user