07-17-2006
sed -f <sed program file name>
You can write sed commands to file from perl; then execute the command file with -f
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1. Shell Programming and Scripting
Hi there. If variables are named inside of a ksh script, how is it possible to pass these to sed?
The affected portion of my script goes something like this:
A=`cut -d. -f1 $FILE`
B=`cut -d. -f2 $FILE`
C=`cut -d. -f3 $FILE`
sed 's/1111/$A/g;s/2222/$B/g;s/3333/$C/g' file > anotherfile
... (2 Replies)
Discussion started by: kristy
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2. Shell Programming and Scripting
Hi All,
I am trying to put the csh variable into a perl.
In the below case, i am trying to put the csh variable "var" into my perl code. I tried to use '"$var"' but i don;t think it works.
Can anybody help me pls?
#!/bin/csh
set var = `echo "xxx"`
perl myperlcode.pl file
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3. Shell Programming and Scripting
Hi, Thanks for looking,,,,
(kornshell)
tmp3 is a list of line numbers
I want to print the lines from my list
code:
while read j
do
echo $j #works fine
echo $filename #works fine
#sed "'$jp'" "$filename" ... (7 Replies)
Discussion started by: JohnMario
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4. Shell Programming and Scripting
I need to process a file line-by-line using some value from a shell variable
Something like:perl -p -e 's/$shell_srch/$shell_replace/g' input.txt
I can't make the '-s' work in the '-p' or '-n' input loop (or couldn't find a syntaxis.)
I have searched and found... (4 Replies)
Discussion started by: alex_5161
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5. Shell Programming and Scripting
hi all
is possible to pass shell (bash) variable to sed like it is in awk?
example:
awk script is storred in awk.awk file and I am passing variable called var to this file.
$ cat awk.awk
{if ($5==var) print $0}
so it works when i issue
$ bash_var=24
$ ls -l | awk -v... (1 Reply)
Discussion started by: wakatana
1 Replies
6. Shell Programming and Scripting
Hi Friends,
I'm calling 'sed' command inside one perl script, which is to list directory names which are having some date value as their names (in the form YYYYMMDD) with in the range (start and end date).
#!/usr/bin/perl -w
use strict;
use warnings;
my $DATA = "/export/home/ganapa";
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7. Shell Programming and Scripting
Hello again :)
Am currently trying to write a function which will delete a record from a file.
The code currently looks as such:
function deleteRecord() {
clear
read -p "Please enter the ID of the record you wish to remove: " strID
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8. Red Hat
Hi all,
Hereby wish to have your advise for below:
Main concept is
I intend to get current directory of my script file.
This script file will be copied to /etc/init.d.
A string in this copy will be replaced with current directory value.
Below is original script file:
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Discussion started by: cielle
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9. Red Hat
num=10
sed -n '$num p' test.txt
sed -n '10 p' test.txt works
however i am putting the sed command in a loop and the line number is not static
Can someone please help me how to achive this. (1 Reply)
Discussion started by: figure20012
1 Replies
10. UNIX for Beginners Questions & Answers
Hello All,
Hope you're doing well !
I am trying below command to be passed in a shell script, header_date_14 is a variable and $1 is the name of a file I intend to pass as a command line argument, however command line argument is not being accepted.
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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)