grep or awk? Post: 1396

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[grep awk cut] > awk

Hi, I'm very new to scripting. grep $s $filename | awk '{print $2}' | cut -c 1-8 How can I optimize this using a single awk? I tried: awk '/$s/ {print $2}' $filename | cut -c 1-8 However didn't work, I think the awk is not recognizing $s and the verbal is something else.

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grep and awk

I have grep MHz psrinfo-v.out it gives The i386 processor operates at 3000 MHz, The i386 processor operates at 3000 MHz, The i386 processor operates at 3000 MHz, The i386 processor operates at 3000 MHz, how to get instead of these 4 lines: CPU speed: 3000 MHz i.e. CPU...

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MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk '{ if ( $7 ~ " " ) { print 0 } else

Hi Guys, I need to set the value of $7 to zero in case $7 is NULL. I've tried the below command but doesn't work. Any ideas. thanks guys. MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk '{ if ( $7 ~ " " ) { print 0 } else { print $7}}' ` Harby.

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Is it better to grep and pipe to awk, or to seach with awk itself

This may just be a lack of experience talking, but I always assumed that when possible it was better to use a commands built in abilities rather than to pipe to a bunch of commands. I wrote a (very simple) script a while back that was meant to pull out a certain error code, and report back what...

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Read content between xml tags with awk, grep, awk or what ever...

Hello, I trying to extract text that is surrounded by xml-tags. I tried this cat tst.xml | egrep "<SERVER>.*</SERVER>" |sed -e "s/<SERVER>$.*$<\/SERVER>/\1/"|tr "|" " " which works perfect, if the start-tag and the end-tag are in the same line, e.g.: <tag1>Hello Linux-Users</tag1> ...

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I have an input file 12.4 1.72849432773174e+01 -7.74784188610632e+01 12.5 9.59432114416327e-01 -7.87018212757537e+01 15.6 5.20139995965960e-01 -5.61612429666624e+01 29.3 3.76696387248366e+00 -7.42896194101892e+01 32.1 1.86899877018077e+01 -7.56508762501408e+01 35 6.98857157014640e+00...

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awk / grep

how do I change this line to use the awk command RC19=`grep -c "Broken pipe" $FTP_OUT` Code tags please

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Piping grep into awk, read the next line using grep

Hi, I have a number of files containing the information below. """"" Fundallinfo 6.3950 14.9715 14.0482 """"" I would like to grep for Fundallinfo and use it to read the next line? I ideally would like to read the three numbers that follow in the next line and...

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sed and awk usage to grep a pattern 1 and with reference to this grep a pattern 2 and pattern 3

Hi , I have a file where i have modifed certain things compared to original file . The difference of the original file and modified file is as follows. # diff mir_lex.c.modified mir_lex.c.orig 3209c3209 < if(yy_current_buffer -> yy_is_our_buffer == 0) { --- >...

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Using awk instead of grep -f

Hi Guys. I am trying to count occurances of patterns(occurance can be anywhere in file2) from file1 in file2. file1 is god god pod rod file2 is iamgod iamgod podrod 123rod456 output should be god 2 god 2 pod 1 rod 2 I am not good at awk but i figured out this command.it doesnt...

LEARN ABOUT DEBIAN

comm

COMM(1) 							   User Commands							   COMM(1)

NAME

       comm - compare two sorted files line by line

SYNOPSIS

       comm [OPTION]... FILE1 FILE2

DESCRIPTION

       Compare sorted files FILE1 and FILE2 line by line.

       With  no  options,  produce three-column output.  Column one contains lines unique to FILE1, column two contains lines unique to FILE2, and
       column three contains lines common to both files.

       -1     suppress column 1 (lines unique to FILE1)

       -2     suppress column 2 (lines unique to FILE2)

       -3     suppress column 3 (lines that appear in both files)

       --check-order
	      check that the input is correctly sorted, even if all input lines are pairable

       --nocheck-order
	      do not check that the input is correctly sorted

       --output-delimiter=STR
	      separate columns with STR

       --help display this help and exit

       --version
	      output version information and exit

       Note, comparisons honor the rules specified by `LC_COLLATE'.

EXAMPLES

       comm -12 file1 file2
	      Print only lines present in both file1 and file2.

       comm -3 file1 file2
	      Print lines in file1 not in file2, and vice versa.

AUTHOR

       Written by Richard M. Stallman and David MacKenzie.

REPORTING BUGS

       Report comm bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report comm translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2011 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       join(1), uniq(1)

       The full documentation for comm is maintained as a Texinfo manual.  If the info and comm programs are properly installed at your site,  the
       command

	      info coreutils 'comm invocation'

       should give you access to the complete manual.

GNU coreutils 8.12.197-032bb					  September 2011							   COMM(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

[grep awk cut] > awk

Discussion started by: firdousamir

2. UNIX for Dummies Questions & Answers

grep and awk

Discussion started by: melanie_pfefer

3. Shell Programming and Scripting

MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk '{ if ( $7 ~ " " ) { print 0 } else

Discussion started by: hariza

4. Shell Programming and Scripting

Is it better to grep and pipe to awk, or to seach with awk itself

Discussion started by: DeCoTwc