Hi Anyone,

if i have a script that expecting a parameter such as:

> ./myscript.sh -Uuser -Ppassword -Ffilename


How do i process those parameter to get the user,password and filename?

if i use $1 or $2, i will get -Uuser and -Ppassword not user / password.

Are there any unix command that might be usefull to do this?


Thanks.
Rookie

Search for
ksh getopt
in google ...

From a search result,

The following code fragment shows how one might process the arguments for
a command that can take the options a or b, as well as the option o,
which requires an argument:

set -- `getopt abo: $*`
if [ $? != 0 ]
then
echo $USAGE
exit 2
fi
for i in $*
do
case $i in
-a | -b) FLAG=$i; shift;;
-o) OARG=$2; shift 2;;
--) shift; break;;
esac
done

This code accepts any of the following as equivalent:

cmd -aoarg file file
cmd -a -o arg file file
cmd -oarg -a file file
cmd -a -oarg -- file file

Depends on the shell. You can always do something messy and check for -P/U/F and then 'cut -c2-'.

If you have bash or ksh (and probably some others but I'm ignorant), you can use 'getopts'.

An example below:

------------------------------------------------------
# getoptsScript

while getopts ":abc:d:" opt
do
case $opt in
a) echo "Option a has been passed"
optionA=true
;;
b) echo "Option b has been passed"
optionB=true
;;
c) echo "Option c has been passed"
optargC=$OPTARG
echo "Option c has argument $optargC"
;;
d) echo "Option d has been passed"
optargD=$OPTARG
echo "Option d has argument $optargD"
;;
*) echo "Invalid option - $opt"
;;
esac
done
shift $((OPTIND - 1))

-----------------------------------------------------------------

This script takes options a, b, c and d.

getoptScript -a -b OR getoptScript -ab is exactly the same

The options list (":abc:d:") holds the valid options. Options c and d are suffixed with a ":" which indicates that they require an option argument.

getoptScript -abc "An argument for c" -d "An argument for d"

The $OPTIND variable is incremented when options are processed. If you shift your input parameters by $OPTIND after processing your options, any additional parameters would be set to $1, $2...

e.g.

getoptScript -c "An argument for c" some other values

Would hold some, other and values in $1, $2 and $3 respectively.

HTH

Hi Rookie,
I do not have left very clear.
To see if this helps you.
For example:

usu=$1
pass=$2
file=$3
...............

or

Using ksh

echo "Username: \c"
read usr
echo off
echo "Password: \c"
read pass
echo on
echo "File name: \c"
read file
.......................

Gustavo.

Sorry Rookie

The correct form is

Using ksh

echo "Username: \c"
read usr
echo "Password: \c"
echo off
read pass
echo on
echo "File name: \c"
read file