I am trying to take first 3 columns in a file which matches the word "abc", but i am getting the below error,
<error>
Global symbol "@F" requires explicit package name at ./new.pl
</error>
whereas when i give the below,grep abc /home/test/file.txt|perl -lane 'print \"$F[0] $F[1] $F[2]\" in unix prompt i am getting the result. When i use inside the perl script it fails. When i remove "use strict" it returns nothing.Please help me out
<code>
#!/usr/bin/perl
use strict;
use warnings;
print `grep abc /home/test/file.txt|perl -lane 'print \"$F[0] $F[1] $F[2]\"' > a.txt`;
</code>
Why do you invoke a Perl one-liner from within a Perl program ??
#!/usr/bin/perl
open (DATA, file.txt);
@array = <DATA>;
close (DATA);
open (DATA, ">$file.txt");
for (@array) {
s/text/replace text/;
push(@contents,$_);
}
seek(DATA, 0, 0);
print DATA (@contents);
close(DATA);
could someone please explain how this works. i've been... (3 Replies)
so in unix this command works works and shows me a list of directories
find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt
but when i try running a perl script to run this command
my $query = 'find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt';... (2 Replies)
can any one suggest some one liner such that when executed will display df -h output of the mount points that are 90% or more that it.. and not the remaining.. (7 Replies)
Hi
I have a file say text.txt and has data as below.
text.txt
-------
/abc/def/tom/hanks
/abc/def/al/pacino
/def/dgg/matt/damon
Now I have to cut the field 3 and field 4 treating / as delimiter and save in the same file. Below is the how the output should be in the same file.
I... (1 Reply)
Hello,
I was trying to split a string to characters by perl oneliner.
echo "The quick brown fox jumps over the lazy dog" | perl -e 'split // ' But did not work as with bash script pipe:
echo "The quick brown fox jumps over the lazy dog" | fold -w1 | sort | uniq -ic 8
1 T
1... (6 Replies)
Dear Awk Experts,
I can write oneliner some time but find difficulty writing like a flow of a program in multiple lines,
could you please help how to write awk program , like long awk programs, any help to start with,
For example,
How to write this in multiple line:
ls -l | awk... (6 Replies)
In the below perl executes if one file is processed perfect. However, when multiple files are processed in batch which is preferred I get the below error that I can not seem to fix it as the '' necessary for the command to execute, but seem to only work for one -arg option. Thank you :).
... (2 Replies)
I have a file with two line, one is header, the other actual value:
TYPCD|ETID2|ETID|LEG ID|PTYP|PTYP SUB|TRD STATUS|CXL REASON|CACT|CACTNM|ENCD|ENC
D NM|TRDR|ASDT|TRDT|MTDT|STDT|LS|SECID|SECID TYP|SECNM|PAR|STCC|MARKET PRICE|DIS
MARKET PRICE|MARKET PRICE CURRENCY|SRC OF SETTLEMENT... (2 Replies)
Hello all,
I am facing a weird issue while executing a code below -
#!/bin/bash
cd /wload/baot/home/baotasa0/sandboxes_finance/ext_ukba_bde/pset
sh UKBA_publish.sh UKBA 28082015 3
if
then
echo "Param file conversion for all the areas are completed, please check in your home directory"... (2 Replies)
Discussion started by: ektubbe
2 Replies
LEARN ABOUT OSX
tap::parser::sourcehandler::perl
TAP::Parser::SourceHandler::Perl(3pm) Perl Programmers Reference Guide TAP::Parser::SourceHandler::Perl(3pm)NAME
TAP::Parser::SourceHandler::Perl - Stream TAP from a Perl executable
VERSION
Version 3.23
SYNOPSIS
use TAP::Parser::Source;
use TAP::Parser::SourceHandler::Perl;
my $source = TAP::Parser::Source->new->raw( 'script.pl' );
$source->assemble_meta;
my $class = 'TAP::Parser::SourceHandler::Perl';
my $vote = $class->can_handle( $source );
my $iter = $class->make_iterator( $source );
DESCRIPTION
This is a Perl TAP::Parser::SourceHandler - it has 2 jobs:
1. Figure out if the TAP::Parser::Source it's given is actually a Perl script ("can_handle").
2. Creates an iterator for Perl sources ("make_iterator").
Unless you're writing a plugin or subclassing TAP::Parser, you probably won't need to use this module directly.
METHODS
Class Methods
"can_handle"
my $vote = $class->can_handle( $source );
Only votes if $source looks like a file. Casts the following votes:
0.9 if it has a shebang ala "#!...perl"
0.75 if it has any shebang
0.8 if it's a .t file
0.9 if it's a .pl file
0.75 if it's in a 't' directory
0.25 by default (backwards compat)
"make_iterator"
my $iterator = $class->make_iterator( $source );
Constructs & returns a new TAP::Parser::Iterator::Process for the source. Assumes "$source->raw" contains a reference to the perl script.
"croak"s if the file could not be found.
The command to run is built as follows:
$perl @switches $perl_script @test_args
The perl command to use is determined by "get_perl". The command generated is guaranteed to preserve:
PERL5LIB
PERL5OPT
Taint Mode, if set in the script's shebang
Note: the command generated will not respect any shebang line defined in your Perl script. This is only a problem if you have compiled a
custom version of Perl or if you want to use a specific version of Perl for one test and a different version for another, for example:
#!/path/to/a/custom_perl --some --args
#!/usr/local/perl-5.6/bin/perl -w
Currently you need to write a plugin to get around this.
"get_taint"
Decode any taint switches from a Perl shebang line.
# $taint will be 't'
my $taint = TAP::Parser::SourceHandler::Perl->get_taint( '#!/usr/bin/perl -t' );
# $untaint will be undefined
my $untaint = TAP::Parser::SourceHandler::Perl->get_taint( '#!/usr/bin/perl' );
"get_perl"
Gets the version of Perl currently running the test suite.
SUBCLASSING
Please see "SUBCLASSING" in TAP::Parser for a subclassing overview.
Example
package MyPerlSourceHandler;
use strict;
use vars '@ISA';
use TAP::Parser::SourceHandler::Perl;
@ISA = qw( TAP::Parser::SourceHandler::Perl );
# use the version of perl from the shebang line in the test file
sub get_perl {
my $self = shift;
if (my $shebang = $self->shebang( $self->{file} )) {
$shebang =~ /^#!(.*perl.*?)(?:(?:s)|(?:$))/;
return $1 if $1;
}
return $self->SUPER::get_perl(@_);
}
SEE ALSO
TAP::Object, TAP::Parser, TAP::Parser::IteratorFactory, TAP::Parser::SourceHandler, TAP::Parser::SourceHandler::Executable,
TAP::Parser::SourceHandler::File, TAP::Parser::SourceHandler::Handle, TAP::Parser::SourceHandler::RawTAP
perl v5.16.2 2012-10-25 TAP::Parser::SourceHandler::Perl(3pm)