Without any command-line arguments, the value of$1will be empty. When your script callsmkdir, it won't be passing an argument to it, and the mkdir command will return that error. To avoid this, you can check for the condition yourself and present a more friendly error: As always, begi...
Run the file with bash command. $ bash case_example.sh Go to top Get Arguments from Command Line: Bash script can read input from command line argument like other programming language. For example, $1 and $2 variable are used to read first and second command line arguments. Create a file...
Run Bash Script with Arguments If a Bash script requires arguments, provide the argument after the script name. All methods for running scripts from the terminal accept user input arguments in the same way. For example: ./script.sh Hello bash script.sh Goodbye For multiple arguments, separate ...
For example, you may use ‘vim script.sh’ or ‘nano script.sh’ to open the file with vim editor or nano editor. First, we need to write the shebang line, which tells the operating system which shell command program to use to execute the following command lines. Then we may write ...
For example, here, I created a simple hello world program named Hello.sh which should reflect the filename while executing: #!/bin/bash echo "Hello from sagar" echo "Name of shell script = $0" And here's the output it gave while running: $#: Get the number of arguments passed to ...
Example- #!/bin/bashCopy echo "Total number of arguments : $#"Copy echo "User_name: $1"Copy echo "User_age: $2"Copy echo "Full_Name: $3"Copy For providing inputs to these arguments, you can run the below command with the values for the arguments in a specific order. ...
In the next example, we used the “$2” parameter, which returns the second argument that was given to the shell script. Displaying All of the Shell Script Arguments using $@ Parameter The “$@” parameter will return all the specified arguments assigned to the referenced shell script, separ...
# For loop expecting command line arguments for i in $@ do echo "$i" done Provide the command line arguments when you run the Bash script. For example: . <script name> foo bar The$@substitutes each command line argument into theforloop. ...
For example: echo "Hello $1" 1. Run: ./script.sh Wan 1. It printHello Wan. Example Create a empty project init-js.sh echo "Initializing JS project at $(pwd)" git init npm init -y # create package.json with all the defaults ...
$ bash script.sh some values 123 Arguments received: some, values, 123 @ - is the name of the default array that stores all the arguments (except for the null one)The number of arguments passed (with the exception of zero) is stored in the # variable:...