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Full Discussion: Using like operator in awk if condition
Top Forums Shell Programming and Scripting Using like operator in awk if condition Post 302975968 by karthik adiga on Wednesday 22nd of June 2016 02:45:03 AM
Old 06-22-2016
Using like operator in awk if condition
Hello All,


I have developed a script which selects a particular filed from a file ,trims it,searches for a particular pattern and then mail it when found.

Code:
cat test_file.txt |sed -n '5,$p'|sed -e 's/ //g'|awk -F'|' '{if ($4 !="Alive") print $1,$2,$3,$4}' >> proc_not_alive.txt

It is working fine,Now my requirment is to filter the processnames which begin with essbase% or has string essbase in it.I have tried the below command and it is working but I know its not the proper way to do it Smilie

Code:
cat test_file.txt |sed -n '5,$p'|sed -e 's/ //g'|awk -F'|' '{if ($4 !="Alive" && $2 != "Essbase" && $2 != "EssbaseStudio") print $1,$2,$3,$4}'

So my doubt is ,I want to use something like $2 NOT like ('%Essbase%') which we do in sql query that should select processes which does not have a process name with a "Essbase" in it.Can you please help me with this.
 

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LEARN ABOUT MINIX

grep

GREP(1) 						      General Commands Manual							   GREP(1)

NAME

       grep - search a file for lines containing a given pattern

SYNOPSIS

       grep [-elnsv] pattern [file] ...

OPTIONS

       -e     -e pattern is the same as pattern

       -c     Print a count of lines matched

       -i     Ignore case

       -l     Print file names, no lines

       -n     Print line numbers

       -s     Status only, no printed output

       -v     Select lines that do not match

EXAMPLES

       grep mouse file	   # Find lines in file containing mouse

       grep [0-9] file	   # Print lines containing a digit

DESCRIPTION

       Grep  searches  one  or	more  files (by default, stdin) and selects out all the lines that match the pattern.  All the regular expressions
       accepted by ed and mined are allowed.  In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or  1
       occurrences,  and  |  can  be used between two regular expressions to mean either one of them.  Parentheses can be used for grouping.  If a
       match is found, exit status 0 is returned.  If no match is found, exit status 1 is returned.  If an error is detected,  exit  status  2	is
       returned.

SEE ALSO

       cgrep(1), fgrep(1), sed(1), awk(9).

																	   GREP(1)
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