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Full Discussion: Sed save changes to same file in loop
Top Forums Shell Programming and Scripting Sed save changes to same file in loop Post 302441560 by alienated on Sunday 1st of August 2010 04:30:01 AM
Old 08-01-2010
Sed save changes to same file in loop
I have got problems saving sed changes to the same file in a loop.
Basically I want the delimited value in every line of the file to be set to blank according to the value stored in var. var can be changed anytime.
I do not have sed -i and i've tried to mv the file. Any other ideas?

My file contents
Code:
31-JUL-10;31-JUL-10;29-JUL-10;29-JUL-10;30-JUL-10;30-JUL-10
31-JUL-10;31-JUL-10;29-JUL-10;29-JUL-10;30-JUL-10;30-JUL-10
31-JUL-10;31-JUL-10;29-JUL-10;29-JUL-10;30-JUL-10;30-JUL-10

to
Code:
;;29-JUL-10;29-JUL-10;30-JUL-10;30-JUL-10
;;29-JUL-10;29-JUL-10;30-JUL-10;30-JUL-10
;;29-JUL-10;29-JUL-10;30-JUL-10;30-JUL-10

My code
Code:
var="1;2"
IFS=";"

    for i in $var
    do
        sed 's/[^;][^;]*;/;/$i' $file> $temp 
        mv $temp $file
    done

 

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OHCOUNT(1)							   User Commands							OHCOUNT(1)

NAME

       ohcount - manual page for ohcount 3.0.0

SYNOPSIS

       ohcount [option] [paths...]

DESCRIPTION

       Ohloh source code line counter command line tool.

	      http://www.ohloh.net/

   [option] can be one of the following:
       -a, --annotate

       -d, --detect

       -h, --help

       -i, --individual

       -l, --license

       -re

       -s, --summary

       -a, --annotate		       Show annotated source code

	      The  contents  of  all  source  code files found within the given paths will be emitted to stdout. Each line will be prefixed with a
	      tab-delimited language name and semantic categorization (code, comment, or blank).

       -d, --detect		       Find source code files

	      Recursively find all source code files within the given paths.  For each source code file found, the file name will  be  emitted	to
	      stdout prefixed with a tab-delimited language name.

       -h, --help		       Display this message

       -i, --individual 	       Count lines of code per file

	      Count  lines  in	all source code files within the given paths, and emit a report of the lines of code, comments, and blanks in each
	      language per file.

       -l, --license

	      Displays detected licensing information contained in each source code file.

       -re

	      Prints raw entity information to the screen (mainly for debugging).

       -s, --summary		       Count lines of code (default)

	      Count lines in all source code files within the given paths, and emit a report of the total number of lines of code,  comments,  and
	      blanks in each language. This is the default action.

       [paths] can refer to any number of individual files or directories.

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