I can't figure this out? Quick help with sed Post: 302228862

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

a quick SED question

I have a line EXTDIR=`echo $i | sed 's/\-tar.gz//'` which looks for files ending in -tar.gz, i would like to increase the functionality so that it looks for .tar.gz files as well as -tar.gz. Do i put the - in square brackets with a dot ? like this EXTDIR=`echo $i | sed 's/\tar.gz//'` ...

2. Shell Programming and Scripting

quick sed question

hey, Im just wondering is there away to get sed to read from a variable eg it doesn't seem to work, i really need to be able to recursively change the same data set...

3. Shell Programming and Scripting

quick sed help

what's the code for delete everything before sssss asdf become:

4. 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...

5. Shell Programming and Scripting

Quick Sed Question

Just want to know why when I do the following in sed, the required is not extracted. echo "ab01cde234" | sed 's/*$//' result: ab01cde (Which is correct) echo "ab01cde234" |sed 's/.*$*$$/\1/' result: blank (was expecting 234) or echo "ab01cde234" |sed 's/.**$/\1/' result: blank...

6. Shell Programming and Scripting

Quick sed/awk question

Hi fellow linux-ers, I have a quick question for you. I have the following text, which I would like to modify: 10 121E(121) 16 Jan 34S 132E 24 Feb 42 176E(176) 18 Sep 21S 164E 25 May 15 171W(-171) 09 Jul How can I do the following 2 modifications using sed and/or awk? 1. in 1st column,...

7. Shell Programming and Scripting

README: Factorial quick chart with sed & bc:

Hi all, While doing some checks I found a kind of interesting arithmetic factorial chart with sed, sharing this may be simple but thought to share, # n=20;for i in `seq $n`;do printf "`seq $i|xargs|sed 's/ /*/g'`= ";echo "`seq $i|xargs|sed 's/ /*/g'`"| bc;done 1= 1 1*2= 2 1*2*3= 6...

8. Shell Programming and Scripting

Help with change significant figure to normal figure command

Hi, Below is my input file: Long list of significant figure 1.757E-4 7.51E-3 5.634E-5 . . . Desired output file: 0.0001757 0.00751 0.00005634 . . .

9. Shell Programming and Scripting

Need Quick help on Understanding sed Regex

Hi Guys, Could you please kindly explain what exactly the below SED command will do ? I am quite confused and i assumed that, sed 's/*$/ /' 1. It will remove tab and extra spaces .. with single space. The issue is if it is removing tab then it should be � right .. please assist....

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)