CODEWITHSUNDEEP
linuxshellunixinteractive
Faust
Faust

Reputation: 1

how to compare umask

I am trying to compare the umask of an user. I am getting an error while doing the comparison. The code I am using is 

val=`su - user -c "umask" | tail -2 | sed -n "/[0-9]/p"`
if [ $val -eq 744 ]
then

   echo "477 found."

fi

When I execute this I am geting an error like:

sh: ^[H: A test command parameter is not valid.

I've tried with = in the compare command, but it is still not working.

Please give any suggestions.

Regards.

val has been initialised as 0.

I am running this as root, so no login is there.

I've also tried giving quotes.

Upvotes: 0

Views: 290

Answers (2)

Zagorax
Zagorax

Reputation: 11890

Your code executes well on my machine, the only solution I can suggest is to use a slightly different syntax, sometimes different bash version complain about one syntax and accept another one:

val=`su - user -c "umask" | tail -2 | sed -n "/[0-9]/p"`
if [[ $val -eq 477 ]] ; then
   echo "477 found."
fi

Have a look here for the difference between [ cond ] and [[ cond ]].

Upvotes: 1

codeling
codeling

Reputation: 11369

You should quote the variable name in your test expression:

if [ "$val" -eq 744 ]

See here for why.

Upvotes: 2

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