Uncommenting the file Post: 302656159

Sponsored Content

Top Forums Shell Programming and Scripting Uncommenting the file Post 302656159 by ddreggors on Thursday 14th of June 2012 10:08:10 AM

06-14-2012

Registered User

I know this is not a sed solution but in vim you can do a range based search replace. That way you can see what you have done and then undo if you don't want to keep that change..

open file in vim and do the following:

Code:

:6,$s/^#//

Then if you don't like what it did:

Code:

To explain...

The ":" places you in command mode in vi/vim. The "6,$" is telling vi/vim to start at line "6" and end at "$" (end of file). Then the "s/^#//" tells vi/vim that we are doing a search/replace operation. Searching for "#" at the beginning of the line (^) and then in the replace side we leave blank to remove the "#" if found.

Just like sed, "s/<search>/<replace>/" uses regex. You can use regex patterns as normal in the search side. It even supports keeping part of the found string as in sed. Use "(" and ")" in the search and "\1" in the replace.

The undo is easy... simply make sure you are not in command mode by hitting the "ESC" key and then hit "u" to undo your changes (Ctrl+r for redo).

Cheers

ddreggors

View Public Profile for ddreggors

Find all posts by ddreggors

3 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Match list of strings in File A and compare with File B, C and write to a output file in CSV format

Hi Friends, I'm a great fan of this forum... it has helped me tone my skills in shell scripting. I have a challenge here, which I'm sure you guys would help me in achieving... File A has a list of job ids and I need to compare this with the File B (*.log) and File C (extend *.log) and copy...

2. Shell Programming and Scripting

Compare 2 text file with 1 column in each file and write mismatch data to 3rd file

Hi, I need to compare 2 text files with around 60000 rows and 1 column. I need to compare these and write the mismatch data to 3rd file. File1 - file2 = file3 wc -l file1.txt 58112 wc -l file2.txt 55260 head -5 file1.txt 101214200123 101214700300 101250030067 101214100500...

3. Shell Programming and Scripting

Shell script (sh file) logic to compare contents of one file with another file and output to file

Shell script logic Hi I have 2 input files like with file 1 content as (file1) "BRGTEST-242" a.txt "BRGTEST-240" a.txt "BRGTEST-219" e.txt File 2 contents as fle(2) "BRGTEST-244" a.txt "BRGTEST-244" b.txt "BRGTEST-231" c.txt "BRGTEST-231" d.txt "BRGTEST-221" e.txt I want to get...

LEARN ABOUT SUNOS

vimtutor

VIMTUTOR(1)                                                   General Commands Manual                                                  VIMTUTOR(1)

NAME

       vimtutor - the Vim tutor

SYNOPSIS

       vimtutor [-g] [language]

DESCRIPTION

       Vimtutor starts the Vim tutor.  It copies the tutor file first, so that it can be modified without changing the original file.

       The Vimtutor is useful for people that want to learn their first Vim commands.

       The optional argument -g starts vimtutor with gvim rather than vim, if the GUI version of vim is available, or falls back to Vim if gvim is
       not found.

       The optional [language] argument is the two-letter name of a language, like "it" or "es".  If the [language] argument is missing, the  lan-
       guage  of  the current locale will be used.  If a tutor in this language is available, it will be used.  Otherwise the English version will
       be used.

       Vim is always started in Vi compatible mode.

FILES

       /usr/share/vim/vim80/tutor/tutor[.language]
                      The Vimtutor text file(s).

       /usr/share/vim/vim80/tutor/tutor.vim
                      The Vim script used to copy the Vimtutor text file.

AUTHOR

       The Vimtutor was originally written for Vi by Michael C. Pierce and Robert K. Ware, Colorado  School  of  Mines  using  ideas  supplied  by
       Charles Smith, Colorado State University.  E-mail: bware@mines.colorado.edu.
       It was modified for Vim by Bram Moolenaar.  For the names of the translators see the tutor files.

SEE ALSO

       vim(1)

                                                                   2001 April 2                                                        VIMTUTOR(1)