全局替换由crontab起的shell脚本中的某些字符串

文章由LinuxBoy分享于2019-03-24 11:03:32热评（116）

全局替换由crontab起的shell脚本中的某些字符串

遇到这样一个需求：

www.2cto.com

需要替换crontab起的shell脚本中的某个域名，但是不知道crontab中

到底有多少的shell脚本包含被替换的域名，难道要手工去查找么？

于是写了个脚本，并通用之.

功能：替换crontab中的shell脚本的某个字符串为另外一个，用法：

Usage : sh replaceCronScript.sh src="string1" dst="string2"

Example: sh replaceCronScript.sh src=clicklog.dtc.log.sz.com dst=soso1_0.dtc.log.sz.com

www.2cto.com

001

#! /bin/bash

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#####################################################

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#name : replaceCronScript.sh

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#note : replace some crontab shell scripts's

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# : string with new string

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#date : 2012.12.27

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#author : <peterguo@vip.qq.com>

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####################################################

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if [ $# -eq 0 ];

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then

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echo "Usage : sh $(basename $0) src=\"string1\" dst=\"string2\""

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echo "Example: sh $(basename $0) src=clicklog.dtc.log.sz.com dst=soso1_0.dtc.log.sz.com"

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exit 1

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InnerIP=$(/sbin/ifconfig eth1 | grep "inet addr" | grep -v "127.0.0.1" | awk '{print $2}' | cut -c 6-)

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CurFullScript=$(readlink /proc/$$/fd/255)

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CurScriptPath=$(dirname $CurFullScript)

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CurScriptName=$(basename $CurFullScript)

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FullParam=$*

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CurPid=$$

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#Reslove the param, format name=value -> $name

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eval $*

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function colorEcho(){

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[ $# -eq 0 ] && return 1

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colorFmtTail='\033[m'

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brightFmtHead='\033[1;29m'

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darkFmtHead='\033[1;30m'

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redFmtHead='\033[1;31m'

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greenFmtHead='\033[1;32m'

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yellowFmtHead='\033[1;33m'

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blueFmtHead='\033[1;34m'

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pinkFmtHead='\033[1;35m'

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cyanFmtHead='\033[1;36m'

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case $1 in

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"red")

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echo -e ${redFmtHead}${2}${colorFmtTail}

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;;

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"green")

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echo -e ${greenFmtHead}${2}${colorFmtTail}

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;;

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"yellow")

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echo -e ${yellowFmtHead}${2}${colorFmtTail}

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;;

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"blue")

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echo -e ${blueFmtHead}${2}${colorFmtTail}

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;;

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"pink")

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echo -e ${pinkFmtHead}${2}${colorFmtTail}

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;;

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"dark")

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echo -e ${darkFmtHead}${2}${colorFmtTail}

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;;

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"bright")

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echo -e ${brightFmtHead}${2}${colorFmtTail}

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;;

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"cyan")

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echo -e ${cyanFmtHead}${2}${colorFmtTail}

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;;

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echo ${2}

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esac

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}

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#Display the Current Environment Values

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echo "[$CurPid][$CurScriptPath][$CurScriptName][$FullParam]"

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#************************* main ****************************#

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total=0

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for file in $(crontab -l | grep "sh " | awk '{for(i=1;i<=NF;i++) print $i}' | grep ".sh$" | sed "s/;.//g")

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GrepRst=$(grep \"$src\" $file 2>/dev/null)

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[[ $? -eq 0 ]] && {

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echo $file

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total=$((total + 1))

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}

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done

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colorEcho yellow ">>>>>>>>>>>>>> Start to Confirm Total[$total]........\n"

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process_files=""

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for file in $(crontab -l | grep "sh " | awk '{for(i=1;i<=NF;i++) print $i}' | grep ".sh$" | sed "s/;.//g")

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GrepRst=$(grep \"$src\" $file 2>/dev/null)

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if [ $? -eq 0 ];

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then

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echo -e "\n\n"

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echo Found in $file

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colorEcho bright "****************************************** begin ************************************************************"

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echo $GrepRst

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colorEcho bright "******************************************* end ************************************************************"

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colorEcho red "Replace[Enter] NoReplace[N|n]"

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read strConfirm

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if [ "${strConfirm}" == "N" ] || [ "${strConfirm}" == "n" ]

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then

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colorEcho green "Skipping file $file"

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else

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colorEcho green "sed -i \"s/$src/$dst/g\" $file"

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sed -i "s/$src/$dst/g" $file

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[[ $? -ne 0 ]] && {

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colorEcho red "Error with $file"

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exit 1

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}

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process_files="$process_files \n$file"

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done

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colorEcho green "\nProcessed files as following ......."

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echo -e $process_files

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