#3) Unix Until loop statement This program will print the value of ‘a’ two times from 1 to 2. a=1 until [ $a -ge 3 ] do echo “value of a=” $a a=`expr $a + 1` done While running these loops, there may be a need to break out of the loop in some condition before ...
Scripting Question (For Loop) Hello, I am practicing creating loops in bash scripting. I am trying to understand the different uses of the for loop. I have a script I made below with some help. Code: #/bin/bash #This script will take the extension of a file in ls command and echo ...
powershell # Default the longest numeral count to 1, since it can't be smaller.$longestNumeralCount=1# Regular expression to find the numerals in the filename - use a template# to simplify updating the pattern as needed.$patternTemplate='-(?<WorkItemNumber>{{{0},{1}}})\.json'$patter...
echo "user is created,password is in /root/pw_File" fi done 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. #删除10个用户 for i in {1..10} ;do userdel -r user$i ;done 3、/etc/rc.d/rc3.d目录下分别有多个以K开头和以S开头的文件;分别读取每个文件,以K...
In PowerShell 7, the-Parallelparameter was added to theForEach-Objectcmdlet. This allows the pipeline to process multiple objects simultaneously. Processing multiple objects simultaneously can provide better performance than a standardForEachloop. You should consider this if you're usi...
Another practical use case is synchronizing the contents of two folders. There are two loops in theSyncFolder.ps1script, both using theForEach-Objectcmdlet. The first loop replicates the source folder’s folder structure to the destination folder. The second one performs the file copy operation. ...
Linuxshellfor循环运行python程序linuxshell脚本for循环 问题本案例要求编写一个Shell脚本chkhosts.sh,利用for循环来检测多个主机的存活状态,相关要求及说明如下: 待检测的多个目标IP地址,存放在ipadds.txt文件内 ping检测可参考前一天的pinghost.sh脚本脚本能遍历ping各主机,并反馈存活状态 执行检测脚本以后,反馈结果如图...
Creating Colorful Shell Script Script 3: Encrypt a File or Directory The “Encrypt.sh” script is a Bash script designed to provide a simple interface forencrypting a file using the GnuPG(GPG) encryption tool. The script welcomes the user and prompts them to enter the exact filename, includi...
If you don’t specify the keyword “in” followed by any list of values in the bash for loop, it will use the positional parameters (i.e the arguments that are passed to the shell script). $ cat for3.sh i=1 for day do echo "Weekday $((i++)) : $day" ...
filename="sample.txt"whileIFS=read-r linedoecho"Line:$line"done<"$filename"3. Until循环 until...