#!/bin/bash
dir=/hanzhao
files=`find /hanzhao/ -name '*.sh'`
for file in $files
do
# echo $filefilename=${file%.*}
# echo $filenamemv $file ${filename}.shell
done

#!/bin/bashfile=`ls /[ABC]/A[123]`for i in $file        donum=${i##*A}let num1=num+3 # echo $num1# num2=${i%A*} # echo $num2 mv $i ${i%A*}A$num1done

直接用vi打开文件，之后再读模式下 直接输入 ：%s#aa#bb#g

#!/bin/bash
cp /opt/lampp/logs/access_log /opt/bak_access_log-`date +%Y%m%d%H%M`>/opt/lampp/logs/access_log

#!/bin/bash
start=0
pidnum=`ps aux|grep "/opt/lampp/*"|wc -l`
echo ${pidnum}
if [ ${pidnum} -gt 1 ]
then
echo 'lampp is start'
read -p 'Do you wish to stop lampp? y or n:  ' yn
case $yn in
[Yy]* )start=1;;
[Nn]* )exit;;* )echo 'Please answer Y or N'
exit;;
esac
else
echo 'lampp is stop,doing start'
read -p 'Do you wish to start lampp? y or n:  ' yn
case $yn in
[Yy]* )start=0;;
[Nn]* )exit;;* )echo 'Please answer Y or N'
exit;;
esac
fiif [ ${start} -eq 1 ]
then ps aux|grep "/opt/lampp/*"|grep -v "grep"|awk '{print $2}'|xargs kill -9
echo 'lampp is stop'
else
/opt/lampp/lampp start
echo 'lampp is start'
fi

#！/bin/bash
pid=`ps -ef|grep "httpd"|grep -v "grep"|awk '{print $2}'`
echo ${pid}
for every_pid in ${pid}
do
exe_path=`ls -l /proc/${every_pid}|grep "exe ->"|awk '{print $NF}'`
echo "exe_path:"${exe_path}
done

ps -ef |grep "httpd"|grep -v "grep"|awk '{print$2}'|xrags kill -9

awk -F","  '{if($1==1||$2>34&&....)print}'  a.txt

awk '{NR>1}BEGIN{sum=0;num=o}{if($1==2){sum+=$2;num+=1}}END{print(sum/num)}' hanzhao