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Full Discussion: Difference between words and not between numbers
Top Forums Shell Programming and Scripting Difference between words and not between numbers Post 302462371 by essemario on Thursday 14th of October 2010 05:33:36 AM
Old 10-14-2010
Hi,

Thank you for helping me. The "test" example was just that.... An example. So that is not a problem, it was just to simplify.

The full thing:

1) extracting a number from a file and checking if it is different from what is supposed to be
Code:
set thenumber = `grep "something" $file | awk '{print $9}'`
if ($thenumber != 1500) then
    echo ERROR

The above works ok

2) same as before, but in this case the thing to check is a word (or even more than one, but now I am testing with 1 word only). It does not seem working even with square brackets
Code:
set theword = `grep "somethingelse" $file | awk '{print $6}'`
if [$theword != NOT] then
echo ERROR

At stage two I have
Code:
if: Expression Syntax.

I tried to quote "NOT", no difference

---------- Post updated at 04:09 AM ---------- Previous update was at 04:05 AM ----------

Sorry, I've seen the problem (I think)

I had
Code:
=! for !=



---------- Post updated at 04:33 AM ---------- Previous update was at 04:09 AM ----------

It works but in the other way round

Code:
grep "somethingelse" $file | awk '{print $6}'

is NOT

so when I do

Code:
if [NOT != NOT] then
echo ERROR

I expect to do not see the error message, but I have it.

For some reason the word "NOT" extracted with grep is different from the second "NOT"?

I tried anyway to type manually also the first "NOT" (skipping the grep part, and I still have the error message: what is different between the 2 "NOT"?

Code:
if [NOT != NOT] then
echo ERROR

 

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LEARN ABOUT LINUX

zegrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
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