In more complex expressions, where everything in quotes is too cumbersome, the shell variable references should be in quotes nevertheless (where the quotes must appear in the shell context, so the shell substitutes them and they do not appear in the sed context)
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Dear all,
How can I amend the following command to use variable inside 'sed' ?
str=`sed -e 's/orig_string/${var}/g' ${sourcefile}`
Thanks,
Rocky (3 Replies)
Hi, i have a problem with sed
i want to substitude a / to ",""," in the following pattern: number/number
so if u have a file which contains -> "Streetname 9/8/6" it shouldn't substitude anything, only if it is "Streetname 9/6" to "Streetname 9","","6".
Maybe you can help me, i try so many... (5 Replies)
Hi,
im having problem creating a loop using my code: aside from the fact that the 1st variable (VAR) does not increment, it loops more than the expected output.
for sample purposes, test csv contains 3 lines.
#get number of lines in the file
lines=$( wc -l < test.csv )
... (5 Replies)
Hi,
i have written a script. it collects data based on the sql queries executed by it. i have multiple output files. after the output file is made i need to do some cosmetic changes in the files and then store them. i am unable to use sed conditions inside the loop.
see below code for... (3 Replies)
I have a file (test.dat) which contains data like this
459|199811047|a |b |shan
kar|ooty|
460|199811047|a |bv |gur
u|cbe|
but I need it like:
459|199811047|a |b |shankar|ooty|
460|199811047|a |b |guru|cbe|
While reading the data from this file, I don't want to remove newline from the end of... (4 Replies)
My need is :
Want to change
docBase="/something/something/something"
to
docBase="/only/this/path/for/all/files"
I have some (about 250 files)xml files.
In FileOne it contains
<Context path="/PPP" displayName="PPP" docBase="/home/me/documents" reloadable="true" crossContext="true">... (1 Reply)
Problem: Need to read contents from a file and use that value inside sed as avariable. sample code below. THe below code replaces contents inside file123 for matched string with "$x" value only. but we want the value of x which is read from TextFile.txt to go in there.
cat TextFile.txt|while... (3 Replies)
What I want to do is delete everything upto the last underscore (_) in column 2.
awk '{ $2=$(echo $2 | sed 's/.*_//'); print $0}'
Sed works fine if I echo the string into it, this doesnt work inside awk. What am I doing wrong?
Similarly, how do I store the substring starting with a... (4 Replies)
Hi guys
Let me at first describe the whole thing that I'm trying to do. Lets say I have 100 files like the following one.
Ow 1230 16.000000 -0.834000 16.083957
1.751652398 -17.20094528 -4.450623277
Hw 1231 ... (6 Replies)
$string="test.binary.value";
$toggle="test.binary.value=true";
host=test.server.com
my $returnCode = system ( "ssh $host 'cp -p /tmp/testfile /tmp/testfile.bkup; sed -i 's/\$string.*/\$toggle/g' /tmp/testfile'" );
cat testfile
test.binary.value=false
Scenario: I am trying to... (3 Replies)
Discussion started by: Tuxidow
3 Replies
LEARN ABOUT LINUX
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)