I did some benchmarks, too.
With sed the runtime grows exponentionally with abc.sed.
GNU sed, when abc.sed is >90 lines, is already slower than the perl solution in post#2.
For my tests I have embedded the perl code in a shell script, so it can read from a pipe or from an argument, just like sed.
This User Gave Thanks to MadeInGermany For This Post:
I have korn shell script that genretaets 100 file based on template replacing the number.
The template file is as below:
$ cat template
file number: NUMBER
The shell script is as below:
$ cat gen.sh
#!/bin/ksh
i=1;
while ((i <= 100)); do
sed "s/NUMBER/$i/" template > file_${i}
((... (1 Reply)
Hi -
I am looking for a replacing a string in a in multiple *.sql files in directory with a new string without using a temporary file
Normally I can use sed command as below
for W in ls `FILE*.sql`
do
sed 's/OLD/NEW/g' $W > TEMPFILE.dat
mv TEMPFILE.dat $W
done
But Here in my... (9 Replies)
Hi Everyone,
I am new to this forum and new to sed/awk programming too !!
I need to find particular string in file1(text file) and replace it with a value from another text file(file2) the file2 has only one line and the value to be replaced with is in the second column.
file 1:
(assert (=... (21 Replies)
Dear all,
I need your help, I have file like this:
file1:23456
01910964830098775635
34567
01942809546554654323
67589
26546854368698023653
09778
58716868568576876878
08675
86178546154065406546
08573
54165843543054354305
.
.file2:
23456 25
34567 26
67589 27 (2 Replies)
Dear all,
I have a number of files and each file has two sections separated by a blank line. At the top section, I have lines which describes the values of the alphabetical characters,
# s #; 0.123
# p #; 12.3
# d #; -2.33
# f #; 5.68
<blank line>
sssssss
spfdffff
sdfffffff
Now I... (4 Replies)
Hi all, the value in the following file is just an example. It could be a different value/network addresses.
Here is my example of initial output in a file name net.txt
Initial Output, net.txt
The goal is to produce the following format which is to convert from CIDR to Netmask... (6 Replies)
I have two files
1. input.txt
2. keyword.txt
input.txt has contents like
.src_ref 0 "call.s" 24 first
0x000000 0x5a80 0x0060 BRA.l 0x60
.src_ref 0 "call.s" 30 first
0x000002 0x1bc5 RETI
.src_ref 0 "call.s" 31 first
0x000003 0x6840 ... (2 Replies)
Dear all,
I want to find all the "," in my text file and then replace the commas to a tab. I found a script online but I don't know how to modify the script for my case. Any one can help? Thank you.
@echo off &setlocal
set "search=%1"
set "replace=%2"
set "textfile=Input.txt"
set... (2 Replies)
I have two files blocks.txt and rules.txt. In blocks.txt i have the following entries
Linux1
Linux2
Linux3
.....
Linux10
In rules.txt i have the lines where a filename pattern starts like
'blk-name.*'
I want to replace 'blk-name' with the names read from blocks.txt file
I tried... (2 Replies)
Discussion started by: Jag02
2 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)