ksh script if condition not accepting brackets

Question

So I am not used to shell scripting. I have a ksh script that has an if coniditon similar to below.

if [[ "asdasd" -eq "asdas()d" ]]; then

However when this runs it complains that

./closedown[36]: asdas()d: unexpected `('

I tried escaping it as such

if [[ "asdasd" -eq "asdas\(\)d" ]]; then

But then it complains about

./closedown[36]: asdas\(\)d: unexpected `\'

Hoping someone can help me out here, cheers

Cyrus · Accepted Answer · 2014-08-15 09:28:41Z

4

-eq is for numeral comparison and needs numbers on both sides.

answered Aug 15, 2014 at 9:28

Cyrus

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1 Comment

konsolebox Over a year ago

And use = or == instead.

Lakshminarayanan K. · Accepted Answer · 2014-08-19 08:58:10Z

0

In addition to the above comments about using '=' for text comparison as against '-eq' (which is for numerical comparison), double quotes allows shell to try and interpret what you have passed to the if condition.

Change that to use single-quotes - like so:

root@bumblebee> [[ 'asdasd' = 'asdas()d' ]] && echo 'Hello:)' || echo 'World:('
World:(

root@bumblebee>

answered Aug 19, 2014 at 8:58

Lakshminarayanan K.

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