Sponsored Content
Top Forums Shell Programming and Scripting Can someone please explain what tr#A-Za-z0-9+/# -_#; means in perl? Post 302466963 by jim mcnamara on Wednesday 27th of October 2010 08:06:23 PM
Old 10-27-2010
prolly not.
Code:
tr#A-Za-z0-9+/# -_#;

== turn an alphanumeric string (if that is something you know) into '-_' where _
is a reserved word in perl regex that means a word separator. i.e., replace alphanum words
witj the hyphen
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

perl doubt plz explain....

hi all i wrote a shell script which uses perl script my code is : >cat filename | while read i >do >perl -e 'require "/home/scripts/abc.pl" ; abc("$i")' >done perl script used will simply check syntax of Cobol programs but it didn't work for me so i asked my colleague he suggested... (1 Reply)
Discussion started by: zedex
1 Replies

2. UNIX for Advanced & Expert Users

perl explain syntax !!!

hi all i was going through some perl code i came across this line and i am not getting what is exactly going on .. $$this{localtion} = GetName->GetVarName("EXE_DIR") ; what is the red part doing in above code (2 Replies)
Discussion started by: zedex
2 Replies

3. Shell Programming and Scripting

perl: Please explain this for me: $hexdigit = (0 .. 9, 'a' .. 'f')[$num & 15];

This is taken from perlop. I can't understand what's going on, please can someone explain this for me? $hexdigit = (0 .. 9, 'a' .. 'f'); to get a hexadecimal digit (2 Replies)
Discussion started by: ksheller
2 Replies

4. Programming

What does it means?

#define abc '\xE8' (7 Replies)
Discussion started by: kamlesh33
7 Replies

5. UNIX for Advanced & Expert Users

What does "__FD_PRN_" means in perl code ?

I have seen something like this in a perl code: $_ =~ s/__FD_PRN_/\\(/g What does this "__FD_PRN_" means. I have searched google but was not able to find any info regarding this. Appreciate if some one can refer to a link for these characters. From comments/code it used to substitue "(" with... (3 Replies)
Discussion started by: sarbjit
3 Replies

6. UNIX for Dummies Questions & Answers

Explain perl formatting commands

Could you please tell the meaning of Below mentioned perl script lines: format OWNER_TOTAL = @< Owner Code @<<<<<<total: @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @###### #.## $prev_cust_type, $prev_owner_code,... (2 Replies)
Discussion started by: vinothrajan55
2 Replies

7. Shell Programming and Scripting

can you explain this perl command?

I am using this line of perl code to change the file format and remove ^M at the end of each line in files: perl -i -pe's/\r$//;' <name of file here> Can you explain to me what this code does, and translate it into bash/awk/sed? (2 Replies)
Discussion started by: locoroco
2 Replies

8. UNIX for Beginners Questions & Answers

Perl: Can someone please explain this code "sort { $a <=> $b } @unsorted"

@sorted = sort { $a <=> $b } @unsorted; I am having hard time understanding how this works? I know the output but interested to know the working. Thanks in advance. (2 Replies)
Discussion started by: Tanu
2 Replies

9. UNIX for Beginners Questions & Answers

Perl/Array Sorting : Can someone please explain below code $h{$_}++

sub uniq { my %h; return grep { !$h{$_}++ } @_ } The above code is to remove duplicates from array. I am having hard time understanding below things (basically around highlighted code in bold)- when was the value inserted in hash? and are we only adding a key in Hash not... (1 Reply)
Discussion started by: Tanu
1 Replies
DH_PERL(1)							     Debhelper								DH_PERL(1)

NAME
dh_perl - calculates Perl dependencies and cleans up after MakeMaker SYNOPSIS
dh_perl [debhelperoptions] [-d] [librarydirs...] DESCRIPTION
dh_perl is a debhelper program that is responsible for generating the ${perl:Depends} substitutions and adding them to substvars files. The program will look at Perl scripts and modules in your package, and will use this information to generate a dependency on perl or perlapi. The dependency will be substituted into your package's control file wherever you place the token ${perl:Depends}. dh_perl also cleans up empty directories that MakeMaker can generate when installing Perl modules. OPTIONS
-d In some specific cases you may want to depend on perl-base rather than the full perl package. If so, you can pass the -d option to make dh_perl generate a dependency on the correct base package. This is only necessary for some packages that are included in the base system. Note that this flag may cause no dependency on perl-base to be generated at all. perl-base is Essential, so its dependency can be left out, unless a versioned dependency is needed. -V By default, scripts and architecture independent modules don't depend on any specific version of perl. The -V option causes the current version of the perl (or perl-base with -d) package to be specified. library dirs If your package installs Perl modules in non-standard directories, you can make dh_perl check those directories by passing their names on the command line. It will only check the vendorlib and vendorarch directories by default. CONFORMS TO
Debian policy, version 3.8.3 Perl policy, version 1.20 SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Brendan O'Dea <bod@debian.org> 11.1.6ubuntu2 2018-05-10 DH_PERL(1)
All times are GMT -4. The time now is 01:43 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy