#!/bin/sh 

## Simple Bourne shell script example,
## works with sh, ksh, bash, zsh, etc.

##
## Multi line print one with " the other with '
##
echo "Hallo $USER,

        nice to meet you.
        It is `date` here :)
"

echo 'Hallo $USER,

        nice to meet you.
        It is `date` here :)
'

##
## Assign command line arguments
##
prg="$0"

foo="$1"
bar="$2"
baz="$3"

num_args=$#

## or

##
## If/then/elsif/fi
##
if [ "$num_args" = 1 ]; then
        echo "one arg given"
elif [ "$num_args" -gt 2 ]; then
        echo "more than two arg"
else
        echo "Zero or two args given (well, they are $num_args) "
fi

##
## Case statement
## 
case "$foo" in
        hello|hi|hello)
                echo Greetings to you too
                ;;
        *)
                echo "I don't know what you mean with '$foo'"
                ;;
esac

##
## Loop over (e.g., list of files)
##
for f in /ftp/rosat/archive/100000/*[7-9][24]p; do
        echo found $f
done

##
## Function definition
##

show_function_args () {
        echo "1='$1'"
        echo "2='$2'"
        echo ...  or
        }

show_function_args one "two - zwei"
show_function_args one  two - zwei

echo "__END__ :)"