128 lines
4.4 KiB
Bash
128 lines
4.4 KiB
Bash
#!/bin/bash
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# ------------------------------------------------------------------------------
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# Copyright (c) 2013-2022 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
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# Protected by the BSD3 license. Please read bellow for details.
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#
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# * Redistribution and use in source and binary forms,
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# * with or without modification, are permitted provided
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# * that the following conditions are met:
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# *
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# * Redistributions of source code must retain the above
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# * copyright notice, this list of conditions and the
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# * following disclaimer.
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# *
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# * Redistributions in binary form must reproduce the above
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# * copyright notice, this list of conditions and the following
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# * disclaimer in the documentation and/or other materials
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# * provided with the distribution.
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# *
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# * Neither the name of the copyright holder nor the names
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# * of any other contributors may be used to endorse or
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# * promote products derived from this software without
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# * specific prior written permission.
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# *
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# * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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# * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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# * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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# * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# * OF SUCH DAMAGE.
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# Search processes matching the given string
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# ------------------------------------------------------------------------------
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ppg()
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{
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ps -edf | grep "$@" | grep -v "grep $@"
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}
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export -f ppg
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# ------------------------------------------------------------------------------
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# List processes owned by a specific user
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# ------------------------------------------------------------------------------
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ppu()
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{
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if [[ -z "$1" ]]; then
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disp E "Usage: ppu <username>"
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return 1
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fi
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# -u lists processes for a specific user
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# -o provides a clean, standard output format
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ps -u "$1" -o pid,user,%cpu,%mem,start,time,command
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}
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export -f ppu
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# ------------------------------------------------------------------------------
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# List processes by exact command name (no path/parameters)
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# ------------------------------------------------------------------------------
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ppn()
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{
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if [[ -z "$1" ]]; then
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disp E "Usage: ppn <command_name>"
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return 1
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fi
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# -e: select all processes
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# -o: specify custom output columns (PID and Command name)
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# grep -w: ensures exact word matching so 'bash' doesn't match 'dbash'
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ps -eo pid,comm | grep -w "$1"
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}
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export -f ppn
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# ------------------------------------------------------------------------------
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# Get PID list of the given process name
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# ------------------------------------------------------------------------------
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gpid()
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{
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[[ $UID -eq 0 ]] && local psopt="-A"
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[[ $# -eq 1 ]] && local single=1
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for pid in $@; do
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local result=$(ps $psopt | grep $pid | awk '{print $1}' | sed "s/\n/ /")
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if [[ $single ]]; then
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[[ $result ]] && echo "${result//$'\n'/ }"
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else
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[[ $result ]] && echo "$pid: ${result//$'\n'/ }"
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fi
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done
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[[ $result ]] || return 1
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}
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export -f gpid
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# ------------------------------------------------------------------------------
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# Kill all processes owned by the given users (kill user)
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# ------------------------------------------------------------------------------
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ku()
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{
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for u in $@; do
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killall -u "$u"
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done
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}
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export -f ku
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# ------------------------------------------------------------------------------
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# Kill all children of a process then the process (kill tree)
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# ------------------------------------------------------------------------------
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kt()
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{
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[[ -z $1 ]] && echo -e "Usage:\n\tkt <pid> [kill_options]"
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local parent_pid="$1"
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shift
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children_pids=$(pgrep -P "$parent_pid")
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for pid in $children_pids; do
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kt "$pid" "$@"
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done
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kill "$@" "$parent_pid"
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}
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# ------------------------------------------------------------------------------
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# EOF
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