05-23-2012
QUESTION1: grep only exact string. QUESTION2: find and replace only exact value with sed
QUESTION1:
How do you grep only an exact string. I am using Solaris10 and do not have any GNU products installed.
Contents of car.txt
CAR1_KEY0
CAR1_KEY1
CAR2_KEY0
CAR2_KEY1
CAR1_KEY10
CURRENT COMMAND LINE: WHERE VARIABLE CAR_NUMBER=1 AND KEY_NUMBER=1
grep ^CAR$CAR_NUMBER"_KEY"$KEY_NUMBER car.txt
OUTPUT:
CAR1_KEY1
CAR1_KEY10
OUTPUT WANTED (HOW DO I ONLY GET THIS):
CAR1_KEY1
QUESTION2:
I have a similar problem with sed (find and replace) using the same input file car.txt.
COMMAND LINE: WHERE VARIABLE CAR_VALUE=1000
sed 's/^CAR'$CAR_NUMBER'_KEY'$KEY_NUMBER'.*/CAR'$CAR_NUMBER'_KEY'$KEY_NUMBER' '$CAR_VALUE'/1' car.txt > new_car.txt
OUTPUT:
CAR1_KEY0
CAR1_KEY1 1000
CAR2_KEY0
CAR2_KEY1
CAR1_KEY1 1000
OUTPUT WANTED (HOW DO I ONLY GET THIS):
CAR1_KEY0
CAR1_KEY1 1000
CAR2_KEY0
CAR2_KEY1
CAR1_KEY10
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BZGREP(1) General Commands Manual BZGREP(1)
NAME
bzgrep, bzfgrep, bzegrep - search possibly bzip2 compressed files for a regular expression
SYNOPSIS
bzgrep [ grep_options ] [ -e ] pattern filename...
bzegrep [ egrep_options ] [ -e ] pattern filename...
bzfgrep [ fgrep_options ] [ -e ] pattern filename...
DESCRIPTION
Bzgrep is used to invoke the grep on bzip2-compressed files. All 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 bzgrep is invoked as bzegrep or bzfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, bzgrep
uses it as the grep program to be invoked. For example:
for sh: GREP=fgrep bzgrep string files
for csh: (setenv GREP fgrep; bzgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca). Adapted to bzip2 by Philippe Troin <phil@fifi.org> for Debian GNU/Linux.
SEE ALSO
grep(1), egrep(1), fgrep(1), bzdiff(1), bzmore(1), bzless(1), bzip2(1)
BZGREP(1)