Replace data of a file with data from another file using shell scripting.
Dears,
I'm new to shell scripting and i was wondering if you can help me with following matter.
I have a file containing 400,000 records. The file contains two columns like:
I also have another file containing 400,000 records with more or less following format:
For example i want to replace 00019356 (from second file) with value 00611291 (from first file).
At the beginning i'm reading a string in specific line with fixed position and fixed length like:
First problem is, how i can read a string from 400,000 records and second how i can replace those values with values from first file, i suppose sed will do the job but could you please give me some more details.
Many thanks!!
Last edited by vgersh99; 03-08-2013 at 10:44 AM..
Reason: code tags, please!
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LEARN ABOUT MINIX
suspend
suspend(1) User Commands suspend(1)NAME
suspend - shell built-in function to halt the current shell
SYNOPSIS
sh
suspend
csh
suspend
ksh
suspend
DESCRIPTION
sh
Stops the execution of the current shell (but not if it is the login shell).
csh
Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.
ksh
Stops the execution of the current shell (but not if it is the login shell).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)SunOS 5.10 15 Apr 1994 suspend(1)