Hello everyone. I have been searching for 90 minutes for something that I "think" should be fairly easy. I'm pretty new to Bash Scripting so I could be completely wrong. Then again it may be a weird request to even need something like this. But here it is.

I have a script written to convert data from one of our software version to another. The only thing I need to add to it is a "check to make sure the user running the script is in the /tmp directory".

I tried
if [ `pwd` = "/tmp" ]; then
echo "Blah Blah TRUE"
else
echo "Blah blah FALSE"
exit

Maybe this is too basic? Like I said I'm pretty new.
Thanks For Your Help!!!!

well, have you tried that?? Seems strange to have found a solutino and then ask online if it works without apparently trying it yourself...?

Either way, it should be fine. You should use $(pwd) syntax this millennium though, not `pwd`.

Of course I tested it and it did not work. Sorry for any misunderstanding. However I did find the fix I am looking for. Also seems that I had the echo statements backwards.
v
if [ `pwd` != "/tmp" ]; then
echo "Blah Blah FALSE"
else
echo "Blah Blah TRUE"
fi


I'm still open to any input, or alternative methods. But this did fix what I was trying to do.

Well, the test command looks fine here... ahh but you have an "exit" instead of a "fi". In terms of style, assumign that your script is going to quit totally if the wrong directory, then I wouldn't use an else condition. Just exit with an error if in the wrong directory, otherwise keep going. Makes scoping and things easier if you don't have to remember however many lines further down the page you were once in the if statement.

oops

Thanks for help guys.

if [ "`pwd`" = "/tmp" ]; then
echo "Blah Blah TRUE"
else
echo "Blah blah FALSE"
exit

or

if [ X`pwd`X = X/tmpX ]; then
echo "Blah Blah TRUE"
else
echo "Blah blah FALSE"
exit

I think in your test condition, it would always be false. In the first case, you wanted the true and so it failed. In the second case, not /tmp is false and so it ran the else portion as you intended.

Please try it from some other directory.

You might prefer to use $( pwd -P ) if you want to know exactly which directory is current and you almost certainly want to use [[ <test expression> ]] rather than [ <test expression> ] for reasons explained on Greg's WIKI.

EDIT: the change from [ to [[ avoids having to use either of the techniques shown by AnanthaP.