To exit from a sourced script, we’ll need areturncommand instead of theexitcommand: #!/bin/bash ps -f return echo We should not see this If we source the script, we’ll get the same result as the version of the script with just thepscommand: ...
/bin/bash # Function to exit parent script exit_parent() { echo "Exiting parent script gracefully" exit 1 } # Parent script echo "Parent script starts" ( # Subshell echo "Subshell starts" trap exit_parent EXIT echo "This is executed" # Perform tasks ) echo "Back to parent script"...
command. If you wish to output the exit status, it can be done by: # your command here testVal=$? echo testVal We know that non-zero exit codes are used to report errors. If we want to check for errors in general, we can write a small script with the command in question and ...
The most common logic errors in a shell script include: Incorrect use of a test operator in a Conditional Statement like using -z instead of -n in a if condition Incorrect use of an Arithmetic operator like multiplying instead of diving a number Incorrect condition to exit from a Bash Loop...
Chapter 11. Introduction to Shell Scripts(第 11 章 Shell 脚本简介 Shell 脚本简介) If you can enter commands into the shell, you can write shell scripts (also known as Bourne shell scripts). A shell script is a series of commands written in a file; the shell reads the commands from the...
Introduction to Shell Scripts(第 11 章 Shell 脚本简介 Shell 脚本简介) If you can enter commands into the shell, you can write shell scripts (also known as Bourne shell scripts). A shell script is a series of commands written in a file; the shell reads the commands from the file just ...
How to execute a shell script in the .profile file All In One .profile用户级启动配置文件 https://www.cnblogs.com/xgqfrms/p/17343088.html demos When use theSSHtologintheRaspberry Pi, it will be auto send it'sIPaddress to achat group's notice messagerobot🤖 ...
exit 1 If you want to show an error from your script, you just have to print it in the standard way. For example: echo "/foo/bar/tmp.sh:42: error: Varnish waffles before continuing." where “42” is the line number. I don’t think this is documented anywhere; I just cribbed th...
/bin/bash if[-n"$1"] then echo"Input argument exists." else echo"Input argument is missing." exit1 fi Here, the“-n”option is used to check if the input argument is not empty and if the input argument is not empty, the script will display a success message. Otherwise, the ...
Shell Script: Copy #!/bin/bash startJMeterServer () { echo "Change current directory to the JMeter !!!"; cd /datadisk01/PerformanceTool/apache-jmeter-5.3/bin || exit; echo "Validating, if there is any JMeter server is running in the current machine?"; if [[ -z $(ps ...