FAIRE UN SCRIPT SHELL AVEC AIDE ET PARSER DE LIGNE DE COMMANDE

#!/bin/sh
# vim: set sw=4 ts=4 et:
help()
{
cat <Write usage and help text here
HELP
exit 0
}

error()
{
# print an error and exit
echo "$1"
exit 1
}

# The option parser, change it as needed
# In this example -f and -h take no arguments -l takes an argument
# after the l
while [ -n "$1" ]; do
case $1 in
-h) help;shift 1;; # function help is called
-f) opt_f=1;shift 1;; # variable opt_f is set
-l) opt_l=$2;shift 2;; # -l takes an argument -> shift by 2
--) shift;break;; # end of options
-*) echo "error: no such option $1. -h for help";exit 1;;
*) break;;
esac
done

# The main program of you script comes after this line
error "ERROR: This is a generic script framework you must modify it first"
#

FAIRE UN MENU DE CHOIX EN SHELL

The select statement is a bash specific extension and is very good for interactive use. The user can select a choice from a list of different values:

select var in ... ; do
break
done
.... now $var can be used ....

Here is an example:

#!/bin/sh
echo "What is your favourite OS?"
select var in "Linux" "Gnu Hurd" "Free BSD" "Other"; do
break
done
echo "You have selected $var"

Here is what the script does:

What is your favourite OS?
1) Linux
2) Gnu Hurd
3) Free BSD
4) Other
#? 1
You have selected Linux