Difference between revisions of "How to use positional parameters"
Jump to navigation
Jump to search
Line 14: | Line 14: | ||
./cmdargs.sh bmw ford toyota</source> | ./cmdargs.sh bmw ford toyota</source> | ||
Sample outputs: | Sample outputs: | ||
− | <pre>The script name : ./ | + | <pre>The script name : ./cmdargs.sh |
The value of the first argument to the script : bmw | The value of the first argument to the script : bmw | ||
The value of the second argument to the script : ford | The value of the second argument to the script : ford |
Revision as of 14:48, 5 September 2009
All command line parameters ( positional parameters ) are available via special shell variable $1, $2, $3,...,$9.
How Do I Access Command-Line Arguments
Create a simple shell script called cmdargs.sh:
#!/bin/bash
echo "The script name : $0"
echo "The value of the first argument to the script : $1"
echo "The value of the second argument to the script : $2"
echo "The value of the third argument to the script : $3"
echo "The number of arguments passed to the script : $3"
echo "The value of all command-line arguments : $*"
Save and close the file. Rut it as follows:
chmod +x cmdargs.sh
./cmdargs.sh bmw ford toyota
Sample outputs:
The script name : ./cmdargs.sh The value of the first argument to the script : bmw The value of the second argument to the script : ford The value of the third argument to the script : toyota The number of arguments passed to the script : toyota The value of all command-line arguments : bmw ford toyota