That is a brilliant application for a "back reference". man regex:
Quote:
Finally, there is one new type of atom, a back reference: '\' followed by a nonzero decimal digit d matches the same sequence of characters matched by the dth parenthesized subexpression (numbering subexpressions by the positions of their opening parentheses, left to right)
,
Try
Your original code seems to use EREs (extended regexes). Should that be wrong, escape the parantheses.
Hello i need some help with the usage of sed.
Situation : 2 textfiles, file.in , file.out
In the first textfile which is called file.in are the words for the substitution.
Every word is in a new-line like :
Firstsub
Secondsub
Thridsub
...
In the second textflie wich is called file.out is... (5 Replies)
Hi, i read couple of threads here on forum, and googled about what bugs me, yet i still can't find solution.
Problem is below.
I need to change this string (with sed if it is possible):
This is message text that is being quoted
to look like this:
This is message text that is being quotedI... (2 Replies)
Hey everyone!
Simple question - I am trying to use sed to replace two different strings. As it stands I can implement this as:
sed -i 's/TIMEOUT//g'
sed -i 's/null//g'
And it works. However, is it possible to shrink that down into a single command? Will there be any performance benefits? (3 Replies)
Hi There...
I need to serach and replace a strings in a text file.
My file has; books.amazon='Let me read' and the output needed is
books.amazon=NONFOUND
pls if anybody know this can be done in script sed or awk.. i have a list of different strings to be repced by NONFOUND.... (7 Replies)
Hi guys,
Hi have this input (Menu.xml)<?xml version="1.0" encoding="ISO-8859-1"?>
<breakfast_menu>
<food>
<name>Berry-Berry Belgian Waffles</name>
<price>$8.95</price>
<calories>900</calories>
</food>
<food>
<name>French Toast</name>
... (6 Replies)
Dear expert,
I need an urgent help.
I would like to update my /etc/ntp.conf file using sed.
1) if script find this string "127.127.1.0" then add the lone below
#server 127.127.1.0
2) is script find this string "fudge 127.127.1.0 stratum 10" then add
#fudge 127.127.1.0 stratum 10 ... (7 Replies)
I have input file like
AAA
AAA
CCC
CCC
CCC
EEE
EEE
EEE
EEE
FFF
FFF
GGG
GGG
i was trying to retrieve data between two strings using sed.
sed -n /CCC/,/FFF/p input_file
Am getting output like
CCC
CCC
CCC (1 Reply)
Hi All,
I need to serach and replace a strings between single quote in a file.
My file has :
location='/data1/test.log' and the output needed is
location='/data2/test_dir/test.log'
pls if anybody know this can be done in script sed or awk.
I have a script, but it's... (6 Replies)
Hi All,
How can I find (pattern search with grep/awk/sed) all files containing any IP address pattern in one directory hierarchy and in its sub-directories. The files can contains more than 4 octets in addition to the IP address as shown below. IP address can contain any octet combinations like-... (3 Replies)
Hi Everyone,
I want to find this 2 strings in a single line a file and replace the second string.
this is the line i need to find
<param name="user" value="CORE_BI"/>
find user and CORE_BI and replace only CORE_BI with admin
so finally the line should look like this.
<param... (5 Replies)
Discussion started by: shajay12
5 Replies
LEARN ABOUT DEBIAN
shtool-subst
SHTOOL-SUBST.TMP(1) GNU Portable Shell Tool SHTOOL-SUBST.TMP(1)NAME
shtool-subst - GNU shtool sed(1) substitution operations
SYNOPSIS
shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
[-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]
DESCRIPTION
This command applies one or more sed(1) substitution operations to stdin or any number of files.
OPTIONS
The following command line options are available.
-v, --verbose
Display some processing information.
-t, --trace
Enable the output of the essential shell commands which are executed.
-n, --nop
No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.
-w, --warning
Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
operations resulted in no content change on all files.
-q, --quiet
Suppress warning on substitution operation resulting in no content change.
-s, --stealth
Stealth operation. Preserve timestamp on file.
-i, --interactive
Enter interactive mode where the user has to approve each operation.
-b, --backup ext
Preserve backup of original file using file name extension ext. Default is to overwrite the original file.
-e, --exec cmd
Specify sed(1) command directly.
-f, --file cmd-file
Read sed(1) command from file.
EXAMPLE
# shell script
shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]
# RPM spec-file
%install
shtool subst -v -n
-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g'
-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g'
`find . -name Makefile -print`
make install
HISTORY
The GNU shtool subst command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 2001 for GNU shtool. It was prompted
by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.
SEE ALSO shtool(1), sed(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-SUBST.TMP(1)