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Top Forums Shell Programming and Scripting Need help with file substitution Post 302237337 by coolkid on Wednesday 17th of September 2008 12:25:26 PM
Old 09-17-2008
Need help with file substitution

hello all
just trying to write a script that will read a file (line by line) and substitute (tht line) in a different file if (tht line) is present in second file

Ex: script has to read file A (line by line) and if file B has tht line it should get substituted with the line in file A

file A:

length=30

threads=40

file B:

threads=20

The script has to read file A (line by line) and has to substitute file B in this case threads=20 with threads=40. Please let me know if guys have any ideas.
 

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line(1)                                                            User Commands                                                           line(1)

NAME
line - read one line SYNOPSIS
line DESCRIPTION
The line utility copies one line (up to and including a new-line) from the standard input and writes it on the standard output. It returns an exit status of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal. EXIT STATUS
Exit status is: 0 Successful completion >0 End-of-file on input. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
sh(1), read(2), attributes(5) SunOS 5.10 1 Feb 1995 line(1)
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