Dealing with Arguments in Shell Script

In C programming language, probably you have heard of command line arguments. In shell script, we can pass arguments in the similar way. The i^th argument is received by $i, for example, the first argument is received by $1. The number of arguments is determined by $#.

Copy content of a file to another

In the following example, the name of the source and destination files are received as arguments.

#!/bin/bash if [ $# -eq 2 ] then cp $1 $2 else echo "Usage: program.sh <source_file> <dest_file>" fi

Happy Exploring!