Question about a sed command Post: 302528703

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Quick Question on sed command in shell script

Hello, I have the following line in one of my shell scripts. It works fine when the search string($SERACH_STR) exists in the logfile($ALERTLOG) but if the search string does not exist this line errors out at run time. Is there a way to make this line return 0 if it is not able to find the...

2. Shell Programming and Scripting

Sed Question 1. (Don't quite know how to use sed! Thanks)

Write a sed script to extract the year, rank, and stock for the most recent 10 years available in the file top10_mktval.csv, and output in the following format: ------------------------------ YEAR |RANK| STOCK ------------------------------ 2007 | 1 | Exxon...

3. Shell Programming and Scripting

Loop with sed command to replace line with sed command in it

Okay, title is kind of confusion, but basically, I have a lot of scripts on a server that I need to replace a ps command, however, the new ps command I'm trying to replace the current one with pipes to sed at one point. So now I am attempting to create another script that replaces that line. ...

4. UNIX for Dummies Questions & Answers

Question on my sed command

So I have this sed command below. The content of the tmp.txt file is dv01:at01,at05,at02:at04 sed 's/\:.*\,/\,/g' tmp.txt Which produces dv01,at02:at04 and I'm trying to use sed to get me dv01,at05,at02 Stripping out the parts leading with ":". My sed is pretty basic, can...

5. Shell Programming and Scripting

Sed command question on Solaris

Hi, I'm trying to find the first field in a text file with the below sed command but it doesn't seem to be correct for running on Solaris.. It has no problem running on AIX. Anyone got a suggestion what the problem is? sed 's/^$\+$ /OK/' The eventual goal is to separate the columns in a...

6. Shell Programming and Scripting

Sed command garbled question

for j in $(cat ${list_B}) do to_replace_2=$(grep $j ${useralias}_2) sed "s/^${j}/${to_replace_2}/p" ${entries} > ${entries}_2 mv ${entries}_2 ${entries} done Hi, I've the above sed command running in a script. Its basically looping through a file and replacing its beginning of line...

7. Shell Programming and Scripting

after sed command file shows '????' question marks

Hi All, I am trying to replace a string in a oracle LDT file file extension .ldt. I am using the following command: sed "s/Test Number Viewer/Test Number 1/g" TEST_LIEN_FORM.ldt > TEST_LIEN_FORM.ldt.tmp mv TEST_LIEN_FORM.ldt.tmp TEST_LIEN_FORM.ldt But after the command, the file...

8. Shell Programming and Scripting

sed command question

Hey all, so I've been experimenting with SED today, no experience before today, so if you're not patient, stop reading now! :P I will attempt to explain this as simply as possible, without having to post massive walls of shitty code. Basically, I've created a small sed script to go through an...

9. Shell Programming and Scripting

sed and awk giving error ./sample.sh: line 13: sed: command not found

Hi, I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :- ./sample.sh: line...

10. UNIX for Beginners Questions & Answers

Sed command usage question

How to work x in sed command? I know x command is swaps the contents of pattern space and hold space. But i am unable to understand it's working?

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)