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Full Discussion: Need help to replace a pattern on specific line in a data file
Top Forums Shell Programming and Scripting Need help to replace a pattern on specific line in a data file Post 302686447 by Don Cragun on Tuesday 14th of August 2012 02:17:45 PM
Old 08-14-2012
Quote:
Originally Posted by anuj06
@bartus11

Thank you , it works !

---------- Post updated at 01:15 PM ---------- Previous update was at 01:12 PM ----------



@Don

Thank you, for your reply. But, it gives me error :

"syntax error: unexpected end of file"

Am I making some mistake.

here is the script I used


$ cat replace.sh
#!/bin/bash

while read file
do
ed -s "$file" <<-EOF
21s/-2.0000 2/1.0000 3/
w
q
EOF
done < list

---------- Post updated at 01:29 PM ---------- Previous update was at 01:15 PM ----------

Anyway, thank you guys ! Its working now
Sorry,
I had some cut and paste errors. The script I supplied should have been:
Code:
while read file
do
        ed "$file" <<-EOF
                5s/-2.0000 2/1.0000 3/
                w 
                q
        EOF
done < list

This should work with ksh, bash, or any POSIX conforming shell.

The <space>s at the start of the lines in the while loop should have been <tab>s. (That kept the EOF from being recognized as the end of the here-document.)

The s/-2.0000 1/1.0000 3/ was copied from the sed you said you used in the 1st message in this thread. The 1st part of your problem statement had the desired replacement listed correctly; I should have read what you said instead of copying your code. (That would have prevented a successful replacement.)

In your quote above you said you used the ed command:
Code:
21s/-2.0000       2/1.0000       3/

but I don't know where the 21 at the start of that line came from. I had 5 there instead of 21 because you said you wanted to make the change on line 5 in all of the files you're going to process. Also note that in this substitution you're looking for eight spaces between fields, but the input file you provided only has a single space between fields. If the number of spaces in your substitute command doesn't match the number of spaces in the files you're editing, the substitution will fail (in awk, ed, and sed).

Hope this helps,
Don
 

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LEARN ABOUT DEBIAN

photon

PHOTON(1)																 PHOTON(1)

NAME

       photon - generates photo albums

SYNOPSIS

       photon [OPTIONS] [PATH]

DESCRIPTION

       Photon generates clean, yet configurable, static HTML photo galleries. All of the work is done from the command line, and the resulting
       output can easily be configured by changing the template files found in /usr/share/photon/templates.

       To create a new template (skin), first create a new directory:

	  mkdir -p ${HOME}/.photon/templates/my_theme/

       Then copy the contents of /usr/share/photon/templates/photonv1/ to this new directory.  Photon only needs three files to build pages:

       index.html
	  used to display the content of a folder

       image.html
	  used to display the page for an image

       movie.html
	  used to display the page for a movie

       If a file is missing, then photon will throw an error and will not run.

HOW TO BUILD A GALLERY

       Quick start
	  $ photon -o myoutputdir /photos

       Use the gimp plugin
	  $ photon --resize-plugin=gimp -v -o myoutputdir /photos

       Change the size for all images and the thumbnail and keep the original photo
	  $ photon --sizelist=0,1600x1200,800x600 --thumbsize=320x240 -o myoutputdir /photos

       Create a gallery from your custom template (skin)
	  $ photon -k my_theme -o myoutputdir /photos

       See photon help
	  $ photon --help

OPTIONS

       -a | --awstats
	  Insert Javascript for Awstats

       --awstats-url=URL
	  Change default value for Awstats script url

       -c NAME | --comment
	  Name of the comment file (default .comments)

       -d NUM | --display-columns=NUM
	  Number of columns in index (default 3)

       -E | --no-exif
	  Don't include EXIF information in HTML file

       -f | --force
	  Overwrite non-image generated files (html, javascript, etc) (default no)

       -ff | --force --force
	  Overwrite image files (default no)

       -h | --help
	  Print this help

       -I | --no-index
	  Do not generate the high level index.html

       -J | --no-javascript
	  Do not use javascript (no shortcuts, ... )

       -k | --skin=THEME
	  Skin selector (default photonv1)

       --print-skins
	  Print out available skins (templates)

       -l NUM | --display-lines=NUM
	  Number of lines in index (default 5)

       -m | --movie
	  Movie mode, include link to movie (*.mov)

       -o NAME | --output-directory=NAME
	  Name of the output directory

       -s LIST | --sizelist=LIST
	  Image sizes (default 0,1024x768,800x600,640x480). Zero, which is the default, uses the original resolution. W x H specifies the width
	  and height of the image in pixels.

       -t SIZE | --thumbsize=SIZE
	  Size of thumbnails (default 160x120)

       -v | --verbose
	  Verbosely print information

       -V | --version
	  Print program version number

       -z | --compress
	  Compress the original image if selected (default copy the image)

       --exif-bordercolor=COLOR
	  Exif window border color (default #008000)

       --exif-bgcolor=COLOR
	  Exif window background color (default #f0fff0)

       --exif-fgcolor=COLOR
	  Exif window text color (default black)

       --body-bgcolor=COLOR
	  Body background color (default #ccccff)

       --img-bgcolor=COLOR
	  Image background color (default white)

       --exclude=PATTERN
	  Exclude files matching PATTERN

       --resize-plugin=PLUG
	  Where PLUG is the program used to create thumbnails internal: fastest method (default) gimp: use Gimp>1.x (better quality)

       --resize-quality-low=NUM
	  Quality for small image. 0 (bad) and 100 (good)

       --resize-quality-high=NUM
	  Quality for big image 0 (bad) and 100 (good)

       --gimp-program=PROG
	  use PROG for gimp

SHORTCUTS WHILE VIEWING AN IMAGE

	  n/SPACE     Go to the next image (with the same resolution)
	  p/BACKSPACE Go to the previous image (with the same resolution)
	  s	      Start/Stop the slideshow
	  +/-	      Increase/Decrease by one second the slideshow's period
	  h	      Show shortcut and help
	  i	      Show Exif information
	  z	      Change to the higher resolution [NOT YET IMPLEMENTED]

SEE ALSO

	  gimp(1)

AUTHOR

	  Written by Luc Saillard, <luc@saillard.org>

	  Main web site: http://www.saillard.org/programs_and_patches/photon/

	  This manual page was written by Kevin Coyner <kcoyner@debian.org> for the Debian project but may be used by others.

								    12/16/2006								 PHOTON(1)
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