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This worked for me. It does exactly what you asked and nothing more (no option processing). Whether that's good or bad is an exercise for the poster :)

if [[ "$*" == *"YOURSTRING"* ]]
then
    echo "YES"
else
    echo "NO"
fi

This takes advantage of special handling of $* and bash super-test [[…]] brackets.

EDIT: Added "" around *YOURSTRING* for clarity

This worked for me. It does exactly what you asked and nothing more (no option processing). Whether that's good or bad is an exercise for the poster :)

if [[ "$*" == *"YOURSTRING"* ]]
then
    echo "YES"
else
    echo "NO"
fi

This takes advantage of special handling of $* and bash super-test [[…]] brackets.

This worked for me. It does exactly what you asked and nothing more (no option processing). Whether that's good or bad is an exercise for the poster :)

if [[ "$*" == *YOURSTRING* ]]
then
    echo "YES"
else
    echo "NO"
fi

This takes advantage of special handling of $* and bash super-test [[…]] brackets.

This worked for me. It does exactly what you asked and nothing more (no option processing). Whether that's good or bad is an exercise for the poster :)

if [[ "$*" == *"YOURSTRING"* ]]
then
    echo "YES"
else
    echo "NO"
fi

This takes advantage of special handling of $* and bash super-test [[…]] brackets.

EDIT: Added "" around *YOURSTRING* for clarity

This worked for me. It does exactly what you asked nothing more (no option processing). Whether that's good or bad is an exercise for the poster :)

if [[ "$@" == "your string" ]]
then
    echo "YES"
else
    echo "NO"
fi

Note that the usage of $@, instead of $*, together with the fact that it is quoted, guarantees the flexibility in case of a test string with whitespace. With $* only "your" or "string" would be matched. There would be no difference, however, if there are no spaces.

See this explanation about the differences in the behavior.

This worked for me. It does exactly what you asked and nothing more (no option processing). Whether that's good or bad is an exercise for the poster :)

if [[ "$*" == *YOURSTRING* ]]
then
    echo "YES"
else
    echo "NO"
fi

This takes advantage of special handling of $* and bash super-test [[…]] brackets.