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Shell Programming and Scripting
Search for exact string
Post 302377624 by gaurav1086 on Friday 4th of December 2009 12:50:12 PM
12-04-2009
hello rahman,
how you doing?
you can use ERE aka extended regular expressions.
So I use "egrep" instead of "grep"
so your one-liner becomes like this
is_there=$(awk -F ',' '{print$1}' test.dat | egrep "\bTEST\b" ) #where \b is the non word chararter in Extended Regex Context.
Other thing that I would like to mention that using awk and grep together is not a good practice. the latter is supposed to disappear when the former makes a presence.
Regards
how you doing?
you can use ERE aka extended regular expressions.
So I use "egrep" instead of "grep"
so your one-liner becomes like this
is_there=$(awk -F ',' '{print$1}' test.dat | egrep "\bTEST\b" ) #where \b is the non word chararter in Extended Regex Context.
Other thing that I would like to mention that using awk and grep together is not a good practice. the latter is supposed to disappear when the former makes a presence.
Regards
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LEARN ABOUT SUSE
xzgrep
XZGREP(1) XZ Utils XZGREP(1) NAME
xzgrep - search compressed files for a regular expression SYNOPSIS
xzgrep [grep_options] [-e] pattern file... xzegrep ... xzfgrep ... lzgrep ... lzegrep ... lzfgrep ... DESCRIPTION
xzgrep invokes grep(1) on files which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), or bzip2(1). All options specified are passed directly to grep(1). If no file is specified, then the standard input is decompressed if necessary and fed to grep(1). When reading from standard input, gzip(1) and bzip2(1) compressed files are not supported. If xzgrep is invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1). The same applies to names lzgrep, lze- grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils. ENVIRONMENT
GREP If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1). SEE ALSO
grep(1), xz(1), gzip(1), bzip2(1), zgrep(1) Tukaani 2009-07-05 XZGREP(1)