Write a script named all that displays (sends to standard output) the name of the calling program, the number of positional parameters, and a list of positional parameters. Include the #! line (Sobell, page 297) and a comment (Sobell, page 298). Remember to make the file executable (Sobell, page 100). Test the script with 0, 1, and 5 positional parameters.

Question

What will be an ideal response?

Answer 1

$ cat all
#!/bin/bash
#
# Program to display its name, the number of arguments it
# was called with, and a list of those arguments.
#
echo "This script was called as $0."
echo "This script was called with $# arguments."
echo "The arguments were: $*"
$ ./all
This script was called as ./all.
This script was called with 0 arguments.
The arguments were:
$ ./all one
This script was called as ./all.
This script was called with 1 arguments.
The arguments were: one
$ ./all 11 12 13 14 15
This script was called as ./all.
This script was called with 5 arguments.
The arguments were: 11 12 13 14 15