07-14-2012
UNIX commands for a script that I need
Hello. I need help trying to create a script in UNIX to do the following steps. I don't know which commands to input to achieve this.
1. In a directory tree, I want to duplicate all .txt files into the same directory, so 2 of each file exists in each directory where there is a .txt file
In the newly created files, I need to:
2. Change the extension to .dat
3. Remove the first 2 lines of text
4. Copy the first 8 lines from an outside, static file, and paste them into the first 8 lines of the newly created files
I don't know if the steps above are the right way to approach what I want to accomplish so I would appreciate any insight and help you all have to offer.
Thanks.
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fileutil::magic::cgen(n) file utilities fileutil::magic::cgen(n)
__________________________________________________________________________________________________________________________________________________
NAME
fileutil::magic::cgen - Generator core for compiler of magic(5) files
SYNOPSIS
package require Tcl 8.4
package require fileutil::magic::cgen ?1.0?
package require fileutil::magic::rt ?1.0?
package require struct::tree
package require struct::list
::fileutil::magic::cgen::2tree script
::fileutil::magic::cgen::treedump tree
::fileutil::magic::cgen::treegen tree node
_________________________________________________________________
DESCRIPTION
This package provides the generator backend for a compiler of magic(5) files into recognizers based on the fileutil::magic::rt recognizer
runtime package. For the compiler frontend using this generator see the package fileutil::magic::cfront.
COMMANDS
::fileutil::magic::cgen::2tree script
This command converts the recognizer specified by the script into a tree and returns the object command of that tree as its result.
It uses the package struct::tree for the tree.
The script is in the format specified by magic(5).
::fileutil::magic::cgen::treedump tree
This command takes a tree as generated by ::fileutil::magic::cgen::2tree and returns a string encoding the tree for human consump-
tion, to aid in debugging.
::fileutil::magic::cgen::treegen tree node
This command takes a tree as generated by ::fileutil::magic::cgen::2tree and returns a Tcl script, the recognizer for the file types
represented by the sub-tree rooted at the node. The generated script makes extensive use of the commands provided by the recognizer
runtime package fileutil::magic::rt to perform its duties.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category fileutil
:: magic of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may
have for either package and/or documentation.
SEE ALSO
file(1), fileutil, magic(5)
KEYWORDS
file recognition, file type, file utilities, mime, type
CATEGORY
Programming tools
fumagic 1.0 fileutil::magic::cgen(n)