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Full Discussion: Using egrep to output expressions which are not found
Top Forums Shell Programming and Scripting Using egrep to output expressions which are not found Post 302770451 by RudiC on Saturday 16th of February 2013 06:18:09 AM
Old 02-16-2013
This one will output the missing pattern
Code:
$ echo 'Schema Area|stock|route_drop|test123' | tr '|' '\n' > tmp; grep -Eiof tmp file | grep -v -f- tmp; rm tmp
test123

And, this is DGPickett's proposal, slightly simplified:
Code:
while read l
  do case "$l" in
        (*"Schema Area"*)       (( ct1++ ));;
        (*stock*)               (( ct2++ ));;
        (*route_drop*)          (( ct3++ ));;
        (*test123*)             (( ct4++ ));;
     esac
  done < file

Last edited by RudiC; 02-16-2013 at 07:24 AM..
 

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LEARN ABOUT POSIX

zgrep

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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