Using SED to get n chars after given value from file Post: 302152003

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Extracting the last 3 chars from a string using sed

Hi. Can I extract the last 3 characters from a given string using sed ? Why the following doesn't work (it prints the full string) : echo "abcd" | sed '/\.\.\.$/p' doesn't work ? output: abcd Thanks in advance, 435 Gavea.

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I know this has been asked previously on this forum...But I think I have a different scenario to present. I ahve a file tht looks like this (note:there are control Z and other chars tht are not visible on line with anme bowers) BB7118450 6004718 BIANCALANA =HEI BZ5842819 ...

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Hi, INPUT: DCBADD OUTPUT: ABCD The SED script should alphabetically sort the chars in the string and remove the duplicate chars.

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pvftobasic

pvf(1)							      General Commands Manual							    pvf(1)

NAME

       pvf tools - utilities to convert various sound formats

DESCRIPTION

       The  pvf  tools	are  a collection of tools to convert vgetty modem data to and from the 'raw modem data' format, and from that to and from
       various audio file formats (like .au or .wav).  In addition, there are some tools to manipulate pvf files, like speed up files or  cut  off
       trailing noise.

       A list of commands is below in the "see also" section.

       You can run those commands with the -h switch for available options. Please also look at the individual contributed man pages.

SEE ALSO

       autopvf(1),   basictopvf(1),  lintopvf(1),  pvf(1),  pvfamp(1),	pvfcut(1),  pvfecho(1),  pvfff(1),  pvffile(1),  pvffilter(1),	pvfmix(1),
       pvfnoise(1), pvfreverse(1), pvfsine(1), pvfspeed(1), pvftoau(1), pvftobasic(1), pvftolin(1), pvftormd(1),  pvftovoc(1),	pvftowav(1),  rmd-
       file(1), rmdtopvf(1), voctopvf(1), wavtopvf(1)

AUTHOR

       Original version from Klaus Weidner.  Copyright (C) 1997 by Marc Eberhard <Marc.Eberhard@Uni-Duesseldorf.DE>

								 14 February 1997							    pvf(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Extracting the last 3 chars from a string using sed

Discussion started by: 435 Gavea

2. Shell Programming and Scripting

Replace Junk chars (Sed)

Discussion started by: alfredo123

3. Shell Programming and Scripting

sed to extract first two uppercase chars in targeted lines

Discussion started by: str8danked

4. Shell Programming and Scripting

sed - how to insert chars into a line

Discussion started by: tangentviper