input parameter

[andi_1]

Hi,

My script needs the following capability. It either gets no parameters or one parameter called expert.

myScript.sh
or
myScript.sh expert

Does anyone know how can I find if expert was passed in?

Thank you.

[A. Clay Stephenson · Accepted solution]

Hi:

Yes, that is rather easy:

MYPARAM=""
if [ $# -ge 1 ]
then
MYPRAM=$1
shift
fi

if [ -n "${PARAM}" ]
then
echo "I have a value"
else
echo "I don't"
fi

[andi_1]

Hi Clay,

Thanks for the response.

Can you tell me how can I check if expert was actually specified?

if [ "$MYPARAM"=="expert" ]; then
fi

doesn't seem to work.

Thanks again!

[A. Clay Stephenson]

Hi again:

Pardon my inconsistant varaibable naming; all of the above should have been 'MYPARAM' but the answer to your question is to change '==' to '=' and you are set.