OR condition within IF statement in shell script

Question

I am trying to use 'or' condition within 'if' statement in shell script (Bash/Solaris). I am trying below, but it is giving Syntax error.

What mistake I am doing?

if [ grep "$logtime" $blogs | grep "Authentication Failed" ] -o [ grep "$logtime" $slogs | egrep "AAA Authentication Failure|AAA Authorization Failure" ] > dptest 2>&1;then

    set of commands.

fi

Regards, Rahul

Barmar · Accepted Answer · 2014-04-03 09:06:18Z

1

Don't put commands inside [ ... ]; this is used for testing expressions.

if ( grep "$logtime" $blogs | grep "Authentication failed" || grep "$logtime" $slogs | egrep "AAA Authentication Failure|AAA Authorization Failure" ) > dptest 2>&1
then
    # commands
fi

The parentheses in my answer are not part of the syntax of if, they're used to group the commands so that all the output will be redirected to dptest.

answered Apr 3, 2014 at 9:06

Barmar

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