kill-byname.sh

来自「一本完整的描述Unix Shell 编程的工具书的所有范例」· Shell 代码 · 共 36 行

#!/bin/bash
# kill-byname.sh: Killing processes by name.
# Compare this script with kill-process.sh.

#  For instance,
#+ try "./kill-byname.sh xterm" --
#+ and watch all the xterms on your desktop disappear.

#  Warning:
#  -------
#  This is a fairly dangerous script.
#  Running it carelessly (especially as root)
#+ can cause data loss and other undesirable effects.

E_BADARGS=66

if test -z "$1"  # No command line arg supplied?
then
  echo "Usage: `basename $0` Process(es)_to_kill"
  exit $E_BADARGS
fi


PROCESS_NAME="$1"
ps ax | grep "$PROCESS_NAME" | awk '{print $1}' | xargs -i kill {} 2&>/dev/null
#                                                       ^^      ^^

# -----------------------------------------------------------
# Notes:
# -i is the "replace strings" option to xargs.
# The curly brackets are the placeholder for the replacement.
# 2&>/dev/null suppresses unwanted error messages.
# -----------------------------------------------------------

exit $?