find / -type f \( -perm -004000 -o -perm -002000 \) -exec ls -lg {} \;


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find / -type f \( -perm -2 -o -perm -20 \) -exec ls -lg {} \;

많은 파일들이 보임.


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확장자명으로 파일 찾고, 내용까지 출력한다. {} 는 출력값을 하나씩 대입한다는 뜻.

find /home -name '*.txt' -exec cat {} \; -print

find / -name '.forward' -exec cat {} \; -print
/home/test/.forward


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quota 부분의 책을 보다가 halt 에 quotaoff 하는게 있다고 하여 보게 되었다.
아래 부분이 있었다.
[ -x /sbin/quotaoff ] && action $"Turning off quotas: " /sbin/quotaoff -aug


root@www ~> cat /etc/init.d/halt
#!/bin/bash
#
# halt          This file is executed by init when it goes into runlevel
#               0 (halt) or runlevel 6 (reboot). It kills all processes,
#               unmounts file systems and then either halts or reboots.
#
# Author:       Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
#               Modified for RHS Linux by Damien Neil
#

NOLOCALE=1
. /etc/init.d/functions

UMOUNT="umount"
[ ! -w /etc ] && UMOUNT="umount -n"

action() {
   echo -n "$1 "
   shift
   if [ "$BOOTUP" = "color" ]; then
      "$@" && echo_success || echo_failure
   else
      "$@"
   fi
   echo
}

halt_crypto() {
    fnval=0
    while read dst src key; do
     [ -z "$dst" -o "${dst#\#}" != "$dst" ] && continue
        if [ -b "/dev/mapper/$dst" ]; then
            if /sbin/dmsetup info "$dst" | grep -q '^Open count: *0$'; then
                action $"Stopping disk encryption for $dst" /sbin/cryptsetup remove "$dst"
            else
                fnval=1
            fi
        fi
    done < /etc/crypttab
    return $fnval
}

# See how we were called.
case "$0" in
   *halt)
     message=$"Halting system..."
     command="/sbin/halt"
     ;;
   *reboot)
     message=$"Please stand by while rebooting the system..."
     command="/sbin/reboot"
     kexec_command="/sbin/kexec"
     ;;
   *)
     echo $"$0: call me as 'halt' or 'reboot' please!"
     exit 1
     ;;
esac
case "$1" in
   *start)
        ;;
   *)
     echo $"Usage: $0 {start}"
     exit 1
     ;;
esac

# Kill all processes.
[ "${BASH+bash}" = bash ] && enable kill

action $"Sending all processes the TERM signal..." /sbin/killall5 -15
sleep 5
action $"Sending all processes the KILL signal..."  /sbin/killall5 -9

# Write to wtmp file before unmounting /var
/sbin/halt -w

# Save mixer settings, here for lack of a better place.
grep -q "\(alsa\)" /proc/devices
if [ $? = 0 -a -x /usr/sbin/alsactl ]; then
   action $"Saving mixer settings" alsactl store
fi

# Save random seed
touch /var/lib/random-seed
chmod 600 /var/lib/random-seed
action $"Saving random seed: " dd if=/dev/urandom of=/var/lib/random-seed count=1 bs=512 2>/dev/null

# Sync the system clock.
ARC=0
SRM=0
UTC=0

if [ -f /etc/sysconfig/clock ]; then
   . /etc/sysconfig/clock

   # convert old style clock config to new values
   if [ "${CLOCKMODE}" = "GMT" ]; then
      UTC=true
   elif [ "${CLOCKMODE}" = "ARC" ]; then
      ARC=true
   fi
fi

CLOCKDEF=""
CLOCKFLAGS="$CLOCKFLAGS --systohc"

case "$UTC" in
   yes|true)
     CLOCKFLAGS="$CLOCKFLAGS -u";
     CLOCKDEF="$CLOCKDEF (utc)";
     ;;
   no|false)
     CLOCKFLAGS="$CLOCKFLAGS --localtime";
     CLOCKDEF="$CLOCKDEF (localtime)";
     ;;
esac

case "$ARC" in
   yes|true)
     CLOCKFLAGS="$CLOCKFLAGS -A";
     CLOCKDEF="$CLOCKDEF (arc)";
     ;;
esac
case "$SRM" in
   yes|true)
     CLOCKFLAGS="$CLOCKFLAGS -S";
     CLOCKDEF="$CLOCKDEF (srm)";
     ;;
esac

[ -x /sbin/hwclock ] && action $"Syncing hardware clock to system time" /sbin/hwclock $CLOCKFLAGS

# Try to unmount tmpfs filesystems to avoid swapping them in.  Ignore failures.
tmpfs=$(awk '$2 ~ /^\/($|proc|dev)/ { next; }
          $3 == "tmpfs" { print $2; }' /proc/mounts | sort -r)
[ -n "$tmpfs" ] && fstab-decode $UMOUNT $tmpfs 2>/dev/null

# Turn off swap, then unmount file systems.
[ -f /proc/swaps ] && SWAPS=`awk '! /^Filename/ { print $1 }' /proc/swaps`
if [ -n "$SWAPS" ]; then
    action $"Turning off swap: " swapoff $SWAPS
    for dst in $SWAPS; do
     if [[ "$dst" =~ "^/dev/mapper" ]] \
         && [ "$(dmsetup status "$dst" | cut -d ' ' -f 3)" = crypt ]; then
         backdev=$(/sbin/cryptsetup status "$dst" \
          | awk '$1 == "device:" { print $2 }')
         /sbin/cryptsetup remove "$dst"
     fi
    done
fi

[ -x /sbin/quotaoff ] && action $"Turning off quotas: " /sbin/quotaoff -aug

# Unmount file systems, killing processes if we have to.
# Unmount loopback stuff first
__umount_loopback_loop

# Unmount RPC pipe file systems
__umount_loop '$3 ~ /^rpc_pipefs$/ || $3 ~ /^rpc_svc_gss_pipefs$/ {print $2}' \
    /proc/mounts \
    $"Unmounting pipe file systems: " \
    $"Unmounting pipe file systems (retry): " \
    -f

LANG=C __umount_loop '$2 ~ /^\/$|^\/proc|^\/dev/{next}
     $3 == "tmpfs" || $3 == "proc" {print $2 ; next}
     $3 ~ /(loopfs|autofs|nfs|cifs|smbfs|ncpfs|sysfs)/ {next}
     /(^none|^\/dev\/ram|^\/dev\/root$)/ {next}
     {print $2}' /proc/mounts \
     $"Unmounting file systems: " \
     $"Unmounting file systems (retry): " \
     -f

[ -f /proc/bus/usb/devices ] && $UMOUNT /proc/bus/usb

[ -f /etc/crypttab ] && halt_crypto

# remove the crash indicator flag
rm -f /.autofsck

# Try all file systems other than root, essential filesystems and RAM disks,
# one last time.
awk '$2 !~ /\/(|dev|proc|selinux)$/ && $1 !~ /^\/dev\/ram/ { print $2 }' \
    /proc/mounts | sort -r | \
  while read line; do
    fstab-decode $UMOUNT -f $line
done

if [ -x /sbin/halt.local ]; then
   /sbin/halt.local
fi

# Remount read only anything that's left mounted.
# echo $"Remounting remaining filesystems readonly"
mount | awk '{ print $3 }' | while read line; do
    fstab-decode mount -n -o ro,remount $line
done

# Now halt or reboot.
echo $"$message"
if [ -f /fastboot ]; then
echo $"On the next boot fsck will be skipped."
elif [ -f /forcefsck ]; then
echo $"On the next boot fsck will be forced."
fi

if [ "$command" = /sbin/halt -a -r /etc/ups/upsmon.conf -a -f /etc/killpower -a -f /etc/sysconfig/ups ] ; then
     . /etc/sysconfig/ups
     if [ "$SERVER" = "yes" -a "$MODEL" = "upsdrvctl" ] ; then
          /sbin/upsdrvctl shutdown
     elif [ "$SERVER" = "yes" -a "$MODEL" != "NONE" -a -n "$MODEL" -a -n "$DEVICE" ] ; then
          $MODEL $OPTIONS_HALT -k $DEVICE
     fi
fi

# First, try kexec. If that fails, fall back to rebooting the old way.
[ -n "$kexec_command" ] && $kexec_command -e -x >& /dev/null

HALTARGS="-d"
[ "$INIT_HALT" != "HALT" ] && HALTARGS="$HALTARGS -p"

exec $command $HALTARGS

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/home/test


cat test.txt 
guk


find /home/test/ -type f -exec egrep -i "guk" /dev/null {} \;
/home/test/test.txt:guk

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find / -type f \( -perm -2 -o -perm -20 \) -exec ls -lg {} \;


find 옵션중.

-perm mode
File's permission bits are exactly mode (octal or symbolic). Since an exact match is
required, if you want to use this form for symbolic modes, you may have to specify a rather
complex mode string. For example '-perm g=w' will only match files which have mode 0020
(that is, ones for which group write permission is the only permission set). It is more
likely that you will want to use the '/' or '-' forms, for example '-perm -g=w', which
matches any file with group write permission. See the EXAMPLES section for some illustra-
tive examples.

 

ls 옵션중

       -l     use a long listing format

       -g     like -l, but do not list owner

 

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유용했던 자료를 기록해 두었습니다. 도움이 되시길~~~ Welcome! I started this blog as a way to give back to all of the other system administrators who have taught me something in the past. Writing these posts brings me a lot of enjoyment and I hope you fun

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