Need to check input arguments Bash Shell Script on Mac

Question

I want to check input arguments presence on a bash script on OSX. I do:

if [-z "$1"]

I get:

/usr/local/bin/deploy.sh: line 8: [-z: command not found

Any tips?

Thanks.

check [this answer](http://stackoverflow.com/questions/6482377/bash-shell-script-check-input-argument) — Christos Papoulas, Sep 08 '13 at 10:54
possible duplicate of ["Command not found" when attempting integer equality in bash](http://stackoverflow.com/questions/4468824/command-not-found-when-attempting-integer-equality-in-bash) — chepner, Sep 08 '13 at 13:29

score 7 · Answer 1 · answered Sep 08 '13 at 10:48

7

You need a space around the condition:

if [ -z "$1" ]

    ^       ^

answered Sep 08 '13 at 10:48

P.P

1 Answers1