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#!/bin/bash
# logevents.sh, by Stephane Chazelas.
# ÆÄÀÏ·Î À̺¥Æ® ·Î±ëÇϱâ.
# /var/log ¿¡ ¾µ ±ÇÇÑÀÌ ÇÊ¿äÇϹǷΠ·çÆ®·Î ½ÇÇà½ÃÄÑ¾ß µË´Ï´Ù.
ROOT_UID=0 # $UID 0 ÀÎ »ç¿ëÀÚ¸¸ÀÌ ·çÆ® ±ÇÇÑÀ» °®½À´Ï´Ù.
E_NOTROOT=67 # ·çÆ®°¡ ¾Æ´Ñ »ç¿ëÀÚÀÏ °æ¿ìÀÇ Á¾·á ¿¡·¯.
if [ "$UID" -ne "$ROOT_UID" ]
then
echo "·çÆ®·Î ½ÇÇà½ÃÄÑ¾ß µË´Ï´Ù."
exit $E_NOTROOT
fi
FD_DEBUG1=3
FD_DEBUG2=4
FD_DEBUG3=5
# ÀÌ ½ºÅ©¸³Æ®°¡ µ¿ÀÛÇϵµ·Ï ÇÏ·Á¸é ´ÙÀ½ µÎ ÁÙÁß¿¡ ÇÑ ÁÙÀÇ ÁÖ¼®À» Ç®±â ¹Ù¶ø´Ï´Ù.
# LOG_EVENTS=1
# LOG_VARS=1
log() # ½Ã°£°ú ³¯Â¥¸¦ ·Î±× ÆÄÀÏ·Î ¾²±â.
{
echo "$(date) $*" >&7 # ³¯Â¥¸¦ ÆÄÀÏ·Î *append" ½Ãŵ´Ï´Ù.
# ¾Æ·¡¸¦ ÂüÁ¶.
}
case $LOG_LEVEL in
1) exec 3>&2 4> /dev/null 5> /dev/null;;
2) exec 3>&2 4>&2 5> /dev/null;;
3) exec 3>&2 4>&2 5>&2;;
*) exec 3> /dev/null 4> /dev/null 5> /dev/null;;
esac
FD_LOGVARS=6
if [[ $LOG_VARS ]]
then exec 6>> /var/log/vars.log
else exec 6> /dev/null # Ãâ·Â ¼û±â±â.
fi
FD_LOGEVENTS=7
if [[ $LOG_EVENTS ]]
then
# then exec 7 >(exec gawk '{print strftime(), $0}' >> /var/log/event.log)
# À ÁÙÀº Bash ¹öÀü 2.04 ¿¡¼´Â µ¿ÀÛÇÏÁö ¾Ê½À´Ï´Ù.
exec 7>> /var/log/event.log # "event.log" ·Î append.
log # ½Ã°£°ú ³¯Â¥ ¾²±â.
else exec 7> /dev/null # Ãâ·Â ¼û±â±â.
fi
echo "DEBUG3: beginning" >&${FD_DEBUG3}
ls -l >&5 2>&4 # command1 >&5 2>&4
echo "Done" # command2
echo "sending mail" >&${FD_LOGEVENTS} # "sending mail" À» 7¹ø ÆÄÀÏ µð½ºÅ©¸³ÅÍ·Î ¾²±â.
exit 0 |