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Full Discussion: Problem with sed in perl!!
Top Forums Shell Programming and Scripting Problem with sed in perl!! Post 302446398 by durden_tyler on Wednesday 18th of August 2010 02:08:40 PM
Old 08-18-2010
Quote:
Originally Posted by abhisharma23
...
I am facing an issue with sed in perl.
...
For removing header and trailer from file I am using the following command in perl file:
Code:
system (`sed '1d;2d;$d' File.txt > NewFile.txt`);

The problem is...
The problem is that you are trying to use sed in a Perl program.
That's like clubbing someone to death with a loaded Uzi, as Larry Wall says.

Perl is a full-fledged scripting language and I'd think it could do everything that sed could do. Maybe better.

Code:
$
$
$ cat f9
Header1
Header2
data1
data2
trailer
$
$
$
$ perl -lne 'print "DATA => $_" if $. > 2 && !eof' f9
DATA => data1
DATA => data2
$
$

tyler_durden
 

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Types(3)						User Contributed Perl Documentation						  Types(3)

NAME
Mac::Types - Macintosh Toolbox Types and conversions. DESCRIPTION
Access to Inside Macintosh is essential for proper use of these functions. Explanations of terms, processes and procedures are provided there. Any attempt to use these functions without guidance can cause severe errors in your machine, including corruption of data. You have been warned. Functions MacPack [ CONVERTERS ...] CODE, DATA ... Convert a perl value into a Mac toolbox type. Predefined codes are: TEXT Text (an identity operation). enum type keyw A 4-byte string. bool A boolean. shor A short integer. long A long integer. sing A single precision float. doub A double precision float. magn An unsigned long. qdrt A QuickDraw "Rect". 'STR ' A pascal style string. 'STR#' A string list. 'fss ' A file specification record. You can pass further code mappings as hash references. MacUnpack [ CONVERTERS ...] CODE, DATA Convert a Mac toolbox type into a perl value. Predefined codes are as for "MacPack". You can pass further code mappings as hash references. XS Functions Debugger [ MSG ] Break into MacsBug. Don't use this if you don't know what MacsBug is. AUTHOR
Written by Matthias Ulrich Neeracher <neeracher@mac.com>. Currently maintained by Chris Nandor <pudge@pobox.com>. perl v5.18.2 2017-10-06 Types(3)
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