The script is executed four times in the output. The error message, “Total number of arguments must be 2”, is printed when no argument is given. The error message, “Product name must be minimum 5 characters long”, is printed when the length of the first argument is less than five....
/bin/bashecho"Name of the script:$0"echo"Total number of arguments:$#"echo"Values of all the arguments:$@" 1. 2. 然后提供几个参数运行脚本:
Check number of arguments and which arguments were passed in bash So if you want to find the number of arguments including which arguments were passed to the script, here you have it. And I will walk you through three ways to do see the arguments passed to the bash script: Using a vari...
In Bash scripting, it's often necessary to verify the number of arguments passed to a script to ensure correct script execution. This is crucial in scenarios
echo "This script needs at least $MINPARAMS command-line arguments!" fi echo exit 0 运行代码: bash test30.sh 1 2 10 The name of this script is "test.sh". The name of this script is "test.sh". Parameter #1 is 1 Parameter #2 is 2 ...
Into that script paste the following: #!/bin/bash echo "Total Number of Arguments:" $# echo "Argument values:" $@ Save and close the file. Give the fileexecutablepermission with the command: chmod u+x script.sh If you run the script without passing arguments, the output is: ...
If your script does not use flags, then you can use the variable "$#", which returns the number of arguments that are being passed to the script. 7. Try to provide "usage" feedback It is a good idea to provide a "usage" statement that explains how to use the script: ...
$#gives the total number of arguments passed. This makes your scripts much more flexible. Now, instead of changing the script every time you want to run it with different inputs, you just pass new arguments directly from the terminal!
./my_script.sh arg1 arg2 在脚本中,你可以使用$1来代表第 1 个参数,用$2来代表第 2 个参数,以此类推。$0是一个特殊变量,它代表正在运行的脚本的名字。 现在,创建一个新的 shell 脚本,命名为arguments.sh,并向其中添加以下几行代码: #!/bin/bash ...
abhishek@itsfoss:~/bash_scripts$ ./reverse.sh ubuntu fedora arch Arguments in reverse order: arch fedora ubuntu 练习2:编写一个脚本,显示传递给它的参数数量。 提示:使用特殊变量$#。 预期输出: abhishek@itsfoss:~/bash_scripts$ ./arguments.sh one and two and three Total number of arguments: 5 ...