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Full Discussion: file update
Top Forums Shell Programming and Scripting file update Post 80833 by mbb on Friday 12th of August 2005 10:19:00 AM
Old 08-12-2005
Quote:
Originally Posted by piyush_movadiya
i want to update my content in file.
like account holder deposite may be increase or discrease what i do?
Sorry, but your question still seems a little open ended. Lets start with identifiying some of the details of your problem:

1) Is your file a binary file, or ASCII file?
2) What identifies a particular account or entry? e.g. account number
3) What is the record structure for an account or entry?

In general terms you may want to consider using the sed or awk command. Read the contents of your file from standard input. The sed or awk commands will allow you to subsitute some of the input stream as you send it to standard output.
 

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LEARN ABOUT REDHAT

userdel

USERDEL(8)						      System Manager's Manual							USERDEL(8)

NAME

       userdel - Delete a user account and related files

SYNOPSIS

       userdel [-r] login

DESCRIPTION

       The  userdel  command modifies the system account files, deleting all entries that refer to login.  The named user must exist.  The options
       which apply to the userdel command are:

       -r     Files in the user's home directory will be removed along with the home directory itself and the user's mail spool.  Files located in
	      other file systems will have to be searched for and deleted manually.

FILES

       /etc/passwd - user account information
       /etc/shadow - secure user account information
       /etc/group - group information

CAVEATS

       userdel will not allow you to remove an account if the user is currently logged in.  You must kill any running processes which belong to an
       account that you are deleting.  You may not remove any NIS attributes on an NIS client.	This must be performed on the NIS server.

SEE ALSO

       chfn(1), chsh(1), passwd(1), groupadd(8), groupdel(8), groupmod(8), useradd(8), usermod(8)

AUTHOR

       Julianne Frances Haugh (jockgrrl@ix.netcom.com)

																	USERDEL(8)
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