07-09-2014
Overkill is an incredible understatement... Each time you run sed you're reading, editing, and replacing the entire file. All for a single operation.
Why not just do everything in awk at the same time you're doing the other operations? You can do similar sorts of operations, but without having to run sed 12 times.
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Hi folks,
I'm looking for a solution to pass variables to a sed-command. I'm reading a lot of threats and also the q&a "How can I use a variable in sed?". None of these commands works. I'm using AIX 5.2.
I want to do the following:
NUMBER=` echo 38341` | sed -n '/$NUMBER/p'
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I am trying to pass a regular expression variable from a simple script to sed
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e.g.
a='aaaa bbbb cccc ...|...:'
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3. Shell Programming and Scripting
Hello ,
I have a script named testscript.sh
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I have a sed write function inside this script as follows:
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4. Shell Programming and Scripting
Hi Folks,
How can I make the following to work from a korn shell?
old="OLDSTRING"
new="NEWSTRING"
file="myfile.txt"
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5. Shell Programming and Scripting
Hi ,
I have three funcions f1, f2 and f3 .
f1 calls f2 and f2 calls f3 .
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Can i pass the variable directly in the definition of f3 ?
Pls help .
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6. Shell Programming and Scripting
I need sed to add a "/>" to the end of a line that contains/starts with <meta.
current line is <meta name="keywords" content="kayword 1, kwyword2">
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i need something like this?
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7. Shell Programming and Scripting
Hi, i need help passing variables to sed using ksh.
My goal is to get particular data from log files.
first i put a mark to the log files.
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8. Shell Programming and Scripting
HI ,I am a new in Bash and ,I dont know how to pass a second parameter to this fuction,if the name of the passed argument is num works fine,but if I try to pass secondNum,dont recognized it
thanks
function check()
{
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9. Shell Programming and Scripting
Hello I am hoping you can help.
I use ksh in Solaris9
I am trying to pass user imputed variables into SED but for some reason can only get SED to recognize one variable.
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10. Shell Programming and Scripting
Trying to do so
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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)