Hi All,
I have a file that I need to be able to find a pattern match on a line, search that line for a text pattern, and replace that text.
An example of 4 lines in my file is:
1. MatchText_randomNumberOfText moreData ReplaceMe moreData
2. MatchText_randomNumberOfText moreData moreData... (4 Replies)
Hi All,
Suppose I have a file "a.doc"
It's contents are :
mos44.0 )
.....
......
.....
export TKTS_RELEASE=tkts44.0b7
......
.......
Now , I need to first search for the pattern "mos44.0 )" and then TKTS_RELEASE will... (8 Replies)
Hello,
I really would appreciate some help with a bash script for some string manipulation on an SQL dump:
I'd like to be able to rename "sites/WHATEVER/files" to "sites/SOMETHINGELSE/files" within the sql dump.
This is quite easy with sed:
sed -e... (1 Reply)
Dear All,
i want to search particular string and want to replance next line value.
following is the test file.
search string is
tmp,???
,10:1 "???" may contain any 3 character it should remain the same and next line replace with ,10:50
tmp,123 --- if match tmp,??? then... (3 Replies)
Hello Experts,
I have a input file that I need to replace a value only if the file contains the number 6 in column 1. I would like to use AWK in a shell script (ksh on a AIX platform). I need all rows written out, but only change 2 fields when the first column contains a numer 6.
Input... (2 Replies)
Hi all,
I am editing a config file in vi that has a / on it.
At the moment, search and replace looks alright as am able to use a # as a temporary separator, i.e. :,$s#/u01/app#/u02/app#g
For doing a search, I have to escape the / do. So if I want to search for /u01/app, I am having to do... (2 Replies)
Hi,
I have a file which contains data in this form.
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;... (2 Replies)
Hi, I have files, with fixed length fields/let's say every field 5 positions/, like this:
xxxx 140 xxxxx
xxxx 140 xxxxx
xxxx 1400 xxxxx
xxxx 150 xxxxx
I need to get only the records, which have 140 in the second column. I use that command:
nawk '{if (substr($0,6,3)=="140") print $0}'... (3 Replies)
Hi Team,
I am new to unix, please help me in this.
I have a file named properties.
The content of the file is :
##Mobile props
east.url=https://qa.east.corp.com/prop/end
west.url=https://qa.west.corp.com/prop/end
south.url=https://qa.south.corp.com/prop/end... (2 Replies)
I use the two awk scripts for comparing file1 and file2.
First awk compare $3 column:
awk -v OFS="\t" 'NR==FNR{a=$4;next}{$2=$2 "\t"(a?a:"-")}1' file1 file2Second awk compare $2 column:
awk -v OFS="\t" 'NR==FNR{a=$4;next}{$2=$2 "\t"(a?a:"-")}1' file1 file2 The only difference
... (12 Replies)
Discussion started by: cmccabe
12 Replies
LEARN ABOUT REDHAT
expr
EXPR(1) FSF EXPR(1)NAME
expr - evaluate expressions
SYNOPSIS
expr EXPRESSION
expr OPTION
DESCRIPTION --help display this help and exit
--version
output version information and exit
Print the value of EXPRESSION to standard output. A blank line below separates increasing precedence groups. EXPRESSION may be:
ARG1 | ARG2
ARG1 if it is neither null nor 0, otherwise ARG2
ARG1 & ARG2
ARG1 if neither argument is null or 0, otherwise 0
ARG1 < ARG2
ARG1 is less than ARG2
ARG1 <= ARG2
ARG1 is less than or equal to ARG2
ARG1 = ARG2
ARG1 is equal to ARG2
ARG1 != ARG2
ARG1 is unequal to ARG2
ARG1 >= ARG2
ARG1 is greater than or equal to ARG2
ARG1 > ARG2
ARG1 is greater than ARG2
ARG1 + ARG2
arithmetic sum of ARG1 and ARG2
ARG1 - ARG2
arithmetic difference of ARG1 and ARG2
ARG1 * ARG2
arithmetic product of ARG1 and ARG2
ARG1 / ARG2
arithmetic quotient of ARG1 divided by ARG2
ARG1 % ARG2
arithmetic remainder of ARG1 divided by ARG2
STRING : REGEXP
anchored pattern match of REGEXP in STRING
match STRING REGEXP
same as STRING : REGEXP
substr STRING POS LENGTH
substring of STRING, POS counted from 1
index STRING CHARS
index in STRING where any CHARS is found, or 0
length STRING
length of STRING
+ TOKEN
interpret TOKEN as a string, even if it is a
keyword like `match' or an operator like `/'
( EXPRESSION )
value of EXPRESSION
Beware that many operators need to be escaped or quoted for shells. Comparisons are arithmetic if both ARGs are numbers, else lexicograph-
ical. Pattern matches return the string matched between ( and ) or null; if ( and ) are not used, they return the number of characters
matched or 0.
AUTHOR
Written by Mike Parker.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for expr is maintained as a Texinfo manual. If the info and expr programs are properly installed at your site, the
command
info expr
should give you access to the complete manual.
GNU coreutils 4.5.3 February 2003 EXPR(1)