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Top Forums Shell Programming and Scripting Remove white space at the beginning of lines Post 302231538 by tipi on Tuesday 2nd of September 2008 02:40:14 PM
Old 09-02-2008
Remove white space at the beginning of lines

Hi!

I store some data obtained with grep or awk in a file. The problem is that some lines have white space at the begining :

[w h i t e s p a c e]line1
line2
[whitespace]line3

I use something like
grep WORD INFILE >> OUTFILE
awk [script] >> OUTFILE

I would love if it were possible to remove the white whitout parsing the OUTFILE after the grep or awk command. Is there an option like I could put in the grep or awk saying "keep only what is at left of the white space"?

Any better idea?

Thanks a lot,

Tipi
 

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KSSHELL(1)						      General Commands Manual							KSSHELL(1)

NAME
ksshell -- an interactive kickstart shell SYNOPSIS
ksflatten [-i | --input INFILE] [-o | --output OUTFILE] [-v | --version VERSION] DESCRIPTION
ksshell is an interactive kickstart shell. It optionally takes an input kickstart file as the basis, allows the user to specify additional kickstart commands, and then writes out the finished kickstart file to stdout or the given file name. This program supports all the usual readline niceties including tab completion of kickstart commands and their options, though not the values those options can take. In addition to understanding all the kickstart commands, ksshell has some builtin commands of its own to make working with kickstart files in the context of a shell easier: .clear Clear the existing kickstart data, including any from INFILE. This essentially starts you over from a blank state. .quit Quit the interactive shell, either saving to the file given by OUTFILE or printing to stdout if none was given. .show Print the current kickstart file state. EXIT STATUS
ksflatten returns 0 on success, and 1 if VERSION is incorrect. If INFILE does not exist, a warning will be printed but the user will still be dumped to the interactive shell. OPTIONS
-i, --input INFILE The name of the input kickstart file. -o, --output OUTFILE Write the flattened kickstart file to OUTFILE, or stdout if no filename is given. -v, --version VERSION Use this version of kickstart syntax when processing the file, or the latest if no version is given. SEE ALSO
ksvalidator (1), ksverdiff (1) KSSHELL(1)
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