*:*:*:*:*:* Daniel's story *:*:*:*:*:*

#!/bin/bash

ls -l | grep '^-' | awk '{print $9}' > imsy

CNT=0

for i in `cat imsy`

do

        if [ -s $i ]

        then

                CNT=`expr $CNT + 1`

        else

                shift

        fi

done

echo $CNT
rm -rf ./imsy 

#!/bin/bash

ls -l | grep '^-' | awk '{print $9}' > imsy

CNT=0

for i in `cat imsy`

do

        if [ -s $i ]

        then

shift

        else

            CNT=`expr $CNT + 1`

        fi

done

echo $CNT
rm -rf ./imsy 

#!/bin/bash
dir=$PWD

for mdn in `cat $dir/b.txt | awk -F, '{print $1}'`
do
      grep  $mdn $dir/a.txt >> $dir/tmp.txt
done

#!/bin/sh
for f in *.${1}; do mv "$f" "${f%${1}}${2}"; done

chmod +x test.sh
./test.sh txt jpeg

[si@localhost 100422]$ ls -l
합계 4
-rw-rw-r-- 1 si si  0  4월 22 14:05 1.txt
-rw-rw-r-- 1 si si  0  4월 22 14:05 2.txt
-rw-rw-r-- 1 si si  0  4월 22 14:05 3.txt
-rwxrwxr-x 1 si si 61  4월 22 14:14 test.sh
[si@localhost 100422]$
[si@localhost 100422]$ ./test.sh txt jpeg
[si@localhost 100422]$ ls -l
합계 4
-rw-rw-r-- 1 si si  0  4월 22 14:05 1.jpeg
-rw-rw-r-- 1 si si  0  4월 22 14:05 2.jpeg
-rw-rw-r-- 1 si si  0  4월 22 14:05 3.jpeg
-rwxrwxr-x 1 si si 61  4월 22 14:14 test.sh

#!/bin/bash
DIR=$PWD
ls -l | grep PFX_COUNT | wc -l > A.txt
A=`cat $DIR/A.txt`
echo $A

if [ $A -lt 3 ]
then
echo "Count is low"
else
echo "Count is high"
        ls -lt | grep PFX_COUNT > $DIR/imsy.txt
        sed '1,3d' $DIR/imsy.txt | awk '{print $9}' > $DIR/imsy2.txt
        cat $DIR/imsy2.txt
                for test in `cat $DIR/imsy2.txt`
                do
                rm -rf $test
                done
fi
rm -rf $DIR/imsy.txt
rm -rf $DIR/imsy2.txt
rm -rf $DIR/A.txt

      1 #!/bin/bash
      2 days=`date +%d`
      3 savedir='/z_bjh/denylist'
      4 for i in $( cat /var/log/secure | grep "Failed password for" | awk '$2 = $days {print $13}' | sort | uniq -c | awk '$1 > 5 {print $2}'); do
      5 denyip=${i#::ffff:}
      6 echo "ALL:$denyip" >> $savedir
      7 done
      8 for a in $( cat /etc/hosts.deny | grep "ALL : " | awk '{print $3}' | sort | uniq -c | awk '{print $2}'); do
      9 echo "ALL : $a" >> $savedir
     10 done
     11 cp /etc/hosts.deny-before /etc/hosts.deny
     12 for b in $( cat $savedir | grep "ALL : " | awk '{print $3}' | sort | uniq -c | awk '{print $2}'); do
     13 echo "ALL : $b" >> /etc/hosts.deny
     14 done
     15 cat $savedir >> /etc/hosts.deny
     16 rm -f $savedir

#!/bin/bash
A=/user1/si/z_bjh/a.txt
B=/user1/si/z_bjh/b.txt
sdiff $A $B > c.txt
sed -n "/</p" c.txt | awk '{print $1}' > d.txt

두 텍스트 파일을 동시에 같이 보면서 그 차이점을 살펴보려면, 다음과 같이 합니다.

   sdiff file1 file2

sdiff 명령은 두 파일을 각각 한 줄씩 서로 비교해 가면서, 두 파일의 내용을 모두 출력합니다.

그 줄이 서로 다른 경우는 | 기호, file1에만 있는 경우는 < 기호, file2에만 있는 경우는 > 기호, 두 줄이 서로 똑 같은 경우는 아무것도 없습니다

sdiff a.txt b.txt
1                                                               1
2                                                               2
3                                                               3
4                                                               4
5                                                             <
6                                                             <
7                                                             <
8                                                             <

#!/bin/bash
DIR="/user1/si/z_bjh/icms_data/"

A=`ls -l $DIR | awk '{print $9}'`

for i in `echo $A`
do
cat $DIR$i >> /user1/si/z_bjh/aa.txt
done

#echo "===== DONE !! ======="

#!/bin/bash
dir=/user1/si/z_bjh
for mdn in `cat /user1/si/z_bjh/icms_err`
do
sed -n "/"$mdn"/p" $dir/b.txt >> $dir/c.txt
done

cut -c 21-31 c.txt >> d.txt

  1 18:16:27.140 CALL(225) (01:14985:00) SENT L4 RTR DIP W/MEDIA PARAM ID:  771 to
  2                        L4
  3 18:16:27.140 CALL(L4)  (01:14985:00) RCVD Route Control from H323
  4 18:16:27.140 CALL(L4)  (01:14985:00) Accessing IP Bearer Profiles
  5 18:16:27.140 CALL(L4)  (01:14985:00) Profile Id 3 (RG 771)
  6 18:16:27.140 CALL(L4)  (01:14985:00) SENT Route Control Ack to H323
  7 18:16:27.140 CALL(225) (01:14985:00) RCVD (2)Route Control Ack from L4
  8 18:16:27.140 CALL(225) (01:14985:00) H245 Tunneling Set in Incoming Setup
  9 18:16:27.140 CALL(225) (01:14985:00) Accepted H245 Tunneling
 10 18:16:27.140 CALL(225) (01:14985:00) Incoming SETUP has fastStart present
 11 18:16:27.140 CALL(225) (01:14985:00) Accepted FastStart Proposal - g729(20)
 12 18:16:27.140 CALL(225) (01:14985:00) Remote Fwd Log Chan Codecs:
 13 18:16:27.140 CALL(225) (01:14985:00) g723.1(30) g729(20) nonStandard g723.1(30)
 14                         g729B(20) g711A64k(20) g711U64k(20)
 15 18:16:27.140 CALL(225) (01:14985:00) Remote Rev Log Chan Codecs:
 16 18:16:27.140 CALL(225) (01:14985:00) g723.1(30) g729(20) nonStandard g723.1(30)
 17                         g729B(20) g711A64k(20) g711U64k(20)
 18 18:16:27.140 CALL(225) (01:14985:00) Local Codecs: g711U(10,30,30) g711A_64(10,
 19                        30,30) g729(10,20,60) g729B(10,20,60) g729AB(10,20,60) g
 20                        729A(10,20,60)
 21 18:16:27.140 CALL(RAS) (01:14985:00) RCVD H225 ARQ from GK

sed -n '1p' filename

sed -n '$p' filename

sed -n '2p' filename

sed -n '1,3p' filename

sed '1,3d' filename

sed -n '/root/p' filename

sed -n ‘/love/,/peace/p’ datafile

sed '/^$d' 파일명 > 새파일명

sed 's/TEST/test/g' > 새파일명

sed 's/TEST//g' > 새파일명

# sed --help
Usage: sed [OPTION]... {script-only-if-no-other-script} [input-file]...

  -n, --quiet, --silent
                 suppress automatic printing of pattern space
  -e script, --expression=script
                 add the script to the commands to be executed
  -f script-file, --file=script-file
                 add the contents of script-file to the commands to be executed
  -i[SUFFIX], --in-place[=SUFFIX]
                 edit files in place (makes backup if extension supplied)
  -c, --copy
                 use copy instead of rename when shuffling files in -i mode
                 (avoids change of input file ownership)
  -l N, --line-length=N
                 specify the desired line-wrap length for the `l' command
  --posix
                 disable all GNU extensions.
  -r, --regexp-extended
                 use extended regular expressions in the script.
  -s, --separate
                 consider files as separate rather than as a single continuous
                 long stream.
  -u, --unbuffered
                 load minimal amounts of data from the input files and flush
                 the output buffers more often
      --help     display this help and exit
      --version  output version information and exit

#!/bin/bash
date= date +%Y-%m-%d_%H:%M:%S
echo $date

[root@localhost ~]# ./date.sh
2009-03-05_15:18:07

#!/bin/bash
today=`date +%Y%m%d`
echo $today

[root@localhost ~]# ./date2.sh
20090305

#!/bin/bash
A=1
while [ $A -lt 5 ]
do
        echo $A
        A=`expr $A + 1`
done

무한 루프문
#!/bin/bash
while [ : ]
do