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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 OSF1

news

news(1) 						      General Commands Manual							   news(1)

NAME

       news - Writes system news items to standard output

SYNOPSIS

       news [-a|-n|-s] | [item...]

       The news command keeps you informed of news concerning the system.

OPTIONS

       Displays  all  news  items,  regardless	of the currency time.  The currency time does not change.  Reports the names of current news items
       without displaying their contents.  The currency time does not change.  Reports the number of current news items without  displaying  their
       names or contents.  The currency time does not change.

DESCRIPTION

       Each  news item is contained in a separate file in the /usr/news directory.  Anyone having read/write permission to this directory can cre-
       ate a news file.

       If you run the news command without any options, it displays the current files in /usr/news, beginning with the most recent. You  can  also
       specify the items you want displayed.

       Each  file  is preceded by an appropriate header. To avoid reporting old news, news stores a currency time. The news command considers your
       currency time to be the modification time of the file named $HOME/.news_time. 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 current.

       Pressing  the  Interrupt  key  sequence	during the display of a news item stops the display of that item and starts the next. Pressing the
       Interrupt key sequence again ends news.

       Most users run news each time they log in by including the following line in their $HOME/.profile file or  in  the  system's  /etc/profile:
       news  -n

EXAMPLES

       To display the items that were posted since you last read the news, enter: news To display all the news items, enter: news -a | pg

	      This  displays  all  the	news  items a page at a time, regardless of whether you have read them yet.  To list the names of the news
	      items that you have not read yet, enter: news -n

	      Each name is a file in the /usr/news directory.  To display specific news items, enter: news newusers services

	      This displays news about newusers and services, which are names listed by news -n.  To display the number of  news  items  that  you
	      have not read yet, enter: news -s To post news for everyone to read, enter: cp schedule /usr/news

	      This  copies  the  file  schedule into the system news directory ( /usr/news) to create the file /usr/news/schedule. To do this, you
	      must have write permission for /usr/news.

FILES

       System profile.	News files.  Indicates the last time news was read.

SEE ALSO

       Commands:  pg(1)

																	   news(1)
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