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Full Discussion: Find and replace txt between two strings in flat file
Top Forums UNIX for Advanced & Expert Users Find and replace txt between two strings in flat file Post 302539149 by itkamaraj on Friday 15th of July 2011 11:51:55 AM
Old 07-15-2011
Code:
$ cat replace.txt 
books.amazon='Let me read'
news.bestseller='xyz'

$ sed -i 's/=.*/=NONFOUND/' replace.txt 

$ cat replace.txt 
books.amazon=NONFOUND
news.bestseller=NONFOUND

 

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LEARN ABOUT DEBIAN

news

NEWS(1) 							   USER COMMANDS							   NEWS(1)

NAME

       news - display system news

SYNOPSIS

       news [-adDeflnpvxs] [[article1] [article2] ..]

DESCRIPTION

       The  news command keeps you informed of news concerning the system.  Each news item is contained in a separate file in the /var/lib/sysnews
       directory. Anyone having write permission to this directory can create a news file.

       If you run the news command without any flags, it displays every unread file in the /var/lib/sysnews directory.

       Each file is preceded by an appropriate header. To avoid reporting old news, the news command stores a currency time. The news command con-
       siders your currency time to be the date the $HOME/.news_time file was last modified. Each time you read the news, the modification time of
       this file changes to that of the reading. Only news item files posted after this time are considered unread.

OPTIONS

       -a, --all
	      Display all news, also the already read news.

       -d, --datestamp
	      Add a date stamp to each article name printed. this can only be used with the -nl flags.

       -D, --datefmt <fmt>
	      Specify a date format, see the strftime(3) man page for more details.  the default format is (%b %d %Y)

       -f, --newsdir <dir>
	      Read news from an alternate newsdir.

       -l, --oneperline
	      One article name per line.

       -n, --names
	      Only show the names of news articles.

       -p, --page
	      Pipe articles through $PAGER or more(1) if the $PAGER environment variable is not set.

       -s, --articles
	      Reports the number of news articles.

MAINTAINER OPTIONS

       -e, --expire #
	      Expire news older than # days.

       -x, --exclude a,b,c
	      A comma separated list of articles which may not be expired.  if a file named .noexpire exists  in  the  /var/lib/sysnews  direcory,
	      filenames are read from it also. names in this file may be comma separated, and/or one per line.

AUTHOR

       Charles, <int@link.xs4all.nl>

Linux								  18 January 1995							   NEWS(1)
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