[killit.sh] Easily killing all processes related to a specific binary #bash #macos #cli #tool #script

killit.sh

#!/bin/bash

source $HOME/.env/old_dot_custom/fx_msgFormatting.sh

_scriptname="$(basename $0)"
_forceKill=$1
_stringtokill="$@"

function pidlist_gen() {
    ps -eo pid= -o cputime= -o comm= | grep -v grep | grep -i ${_stringtokill}
}

function killThose() {
    echo ""
    echo "${_pidList}" | while read _pdetails; do
        local _pid="$(echo "$_pdetails" | awk '{print $1}')"
        msg_att "Killing $_pid..."
        kill $(echo "$_pdetails" | awk '{print $1}') >/dev/null 2>&1
    done
}

function main() {
    if ! ps -eo pid= -o cpu= -o etime= -o command= | grep -ve grep -ve $_scriptname | grep -i "${_stringtokill}" >/dev/null 2>&1; then
        echo ""
        msg_err "No PID matches string "$_stringtokill""
        echo ""
        exit 1
    fi

    echo ""
    msg_att "Processes to be killed:"
    printf "${YELLOW}    ============================================================${RESET_ALL}\n"
    while read pline; do
        _proc="${pline[@]}"
        _procPid="$(echo "$_proc" | awk '{print $1}')"
        _procCpuTime="$(echo "$_proc" | awk '{print $2}')"
        _procNameLong="$(echo "$_proc" | awk '{$1=$2=""; print $0}' | sed "s/^[ \t]*//")"
        _procNameLongChars=$(echo $_procNameLong | wc -c)
        _procNameShortMaxChars=40
        _proc_nameShortAppend=''
        if [[ $_procNameLongChars -gt $_procNameShortMaxChars ]]; then
            _proc_nameShortAppend='[...]'
        fi
        _procNameShort="${_proc_nameShortAppend}$(echo "$_proc" | awk '{$1=$2=""; print $0}' | sed 's/^[ \t]*//')"
        _spid="$(echo "$_proc" | awk '{print $1}')"
        _spidproc="$(ps -eo command= ${_procPid} | rev | cut -d'/' -f1 | rev)"
        printf "%10s  ${CYAN} ${_procNameShort} ${RESET_ALL}\n" $_procPid

    done \
        <<<"$(pidlist_gen)"
    printf "\n${YELLOW}    ============================================================${RESET_ALL}\n\n"
    msg_warn "Proceed?"
    printf "     [y/N]:   "
    read _yesno
    _yesno=${_yesno} # tolower bash 4.x
    printf "\n"
    if [[ "$_yesno" =~ ^(yes|y)$ ]]; then

        msg_info "Running"
        killThose

    else
        msg_info "Exiting...\n\n"
        return 0
    fi
}

_pidList=$(pidlist_gen | grep -v grep | grep -i ${_stringtokill} | grep -v ${_scriptname} | awk '{print $1}')

main