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csh shell script - test the grep command has been sucessfully match pattern.

Posted on 2008-10-04
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Last Modified: 2013-12-26
I don't know how to test the variable y whether or not containing something. Please see code below.
#!/bin/csh 
set x = 123
set y = `echo $x | grep -E "[6-9]+"`
if $y has something   //my question is here... don't know how to test it
    echo Pattern found
else
    echo Pattern not found
endif

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Question by:chiachia
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ID: 22642385
if( "$y" != '' )then
   echo Pattern found
else
    echo Pattern not found
endif
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by:chiachia
ID: 31503099
Thank you very much!
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