In this article, we will take a look at how to use abreakandcontinuein bash scripts. In bash, we have three main loop constructs (for,while,until).Breakandcontinuestatements are bash builtin and used to alter the flow of your loops. This concept of break and continue are available in ...
elif [ $param = "c" ] then continue fi echo Parameter $COUNT is $param ((COUNT++)) done echo "for loop terminated" exit 0 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 如果参数是“a“,那么就退出循环体: script % ./for.sh a b c d e for loop...
/bin/bash ## author:Xiong Xuehao ## Useforinthis script.foriin`seq15`;doecho$idone 脚本中的seq 1 5 表示从1到5的一个序列。你可以直接运行这个命令试下。脚本执行结果为: 通过这个脚本就可以看到for循环的基本结构: for 变量名 in 循环的条件; do command done 循环的条件那一部分也可以写成这样的...
sh #!/bin/bash echo -n "倒计时:" for i in `seq 9 -1 1` do echo -n -e "\b$i" sleep 1 done echo 执行代码 [root@localhost ~]# ./sleep.sh 倒计时:8 代码语言:javascript 代码运行次数:0 运行 AI代码解释 [root@localhost ~]# cat for_sleep.sh #!/bin/bash #监控主机存活的脚本...
/bin/bash ## author:Xiong Xuehao ## Usewhileinthis script. a=10while[ $a -ge1];doecho$a a=$[$a-1]done 脚本的执行结果为: 另外你可以把循环条件忽略掉,笔者常常这样写监控脚本。 while :; do command done 示例: #! /bin/bash
/bin/bash i=0 while [[ $i -lt 11 ]] do if [[ "$i" == '2' ]] then echo "Number $i!" break fi echo $i ((i++)) done echo "Done!"Copy Each line in the script does the following: Line 3defines and sets the variableito0....
sh #!/bin/bash ### #Author:jeven #time:Wed 18 May 2022 11:12:39 PM CST #filename:break.sh #Script description: ### for i in `seq 10` do if [ $i -eq 4 ];then break fi echo $i done 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 162.执行脚本[root@192 scripts]# sh...
/bin/bash##***#Author: Sunny#Date: 2017-09-01#FileName:#version: 1.0#Your change info:#Description: For test the functioon of return used in script#Copyright(C): 2017 All rihts reserved#***echoRC1=$RC1echoRC2=$RC2echo\$?=$?os_version=`cat/etc/system...
In the example shared above, we stopped the while loop when the value of i was equal to 4.After executing the above Bash script, you will get an output like the one below:0 1 2 3 Number 4! We are going to stop here. We are stopped!!! Break Out of the for Loop in Bash...
/bin/bash # Program: # This program will show the use offor# History: #2015/1/12First release # 自定义列表forloopin12345doecho"loop=$loop"doneexit0deyuy/bin/my_shell >>chmodu+x for1.shdeyuy/bin/my_shell >> ./for1.shloop=1loop=2loop=3loop=4loop=5还可以通过读取文件内容生成...