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Top Forums Shell Programming and Scripting extracting sentences that only contain a word Post 302527967 by birei on Monday 6th of June 2011 06:40:32 AM
Old 06-06-2011
Hi,

Using 'perl':
Code:
$ perl -ne 'print +(map { s/^\s*(\S+)\s*$/$1/; $_ } $_), "\n" if /^\s*\S+\s*$/' infile

Regards,
Birei
 

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Devel::CallTrace(3pm)					User Contributed Perl Documentation				     Devel::CallTrace(3pm)

NAME
Devel::CallTrace - See what your code's doing SYNOPSIS
#!/usr/bin/perl -d:CallTrace package foo; sub bar { print "bar "; baz(); } sub baz { print "boo "; } foo::bar(); RATIONALE
There are a number of perl modules in the CPAN that are designed to trace a program's execution as it runs. Each uses a different trick to do its job, but none of them quite met my needs. The technique this module uses is quite simple and seems to be quite robust. DB::sub perl will automatically call DB::sub on each subroutine call and leave it up to us to dispatch to where we want to go. Devel::CallTrace::called This routine is called with two parameters: DEPTH The integer "depth" that this call is being called at. PARAMS A reference to the routine's @INC To get at the subroutine that was being called, have a look at $DB::sub BUGS
It uses the debugger. How could it not have bugs? SEE ALSO
perldebguts, DB, a licensed therapist. trace - Uses source filters. Scares me. Devel::TraceCalls - Very robust API. The code seems to do all sorts of scary magic Debug::Trace - Uses symbol table magic to wrap your functions. Devel::TRaceFuncs - Requires developers to instrument their source files. COPYRIGHT
Copyright 2005 Jesse Vincent <jesse@bestpractical.com> This module may be redistributed under the same terms as perl itself perl v5.10.1 2008-07-07 Devel::CallTrace(3pm)
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