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rewrite of "dos2unix" in Perl
Topicalization and Special Variables example from a Well House Consultants training course
More on Topicalization and Special Variables [link]
More on Topicalization and Special Variables [link]
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This example is described in the following article(s): • Moving files between Windows / DOS and Linux / Unix - [link] |
Source code: cv Module: P210
#!/usr/bin/perl -p
# rewrite of "dos2unix" in Perl
# converts all of the carriage returns
# into newlines (line feeds)
# reads from file(s) named on the command
# line or from STDIN if none named. Writes
# to stdout which can be redirected with >.
# You may NOT redirect back to the input file
# (in common with linux / unix utilities).
# use of command line -p option says
# "include a while (<>) loop with a
# print around the code"
s/\r/\n/g;
# Remember to place this file in a
# directory on your executable path,
# and to "chmod +x" the file.
# rewrite of "dos2unix" in Perl
# converts all of the carriage returns
# into newlines (line feeds)
# reads from file(s) named on the command
# line or from STDIN if none named. Writes
# to stdout which can be redirected with >.
# You may NOT redirect back to the input file
# (in common with linux / unix utilities).
# use of command line -p option says
# "include a while (<>) loop with a
# print around the code"
s/\r/\n/g;
# Remember to place this file in a
# directory on your executable path,
# and to "chmod +x" the file.
Learn about this subject
This module and example are covered on the following public courses:
* Perl Programming
* Perl bootcamp
* Learning to program in Perl
* Perl Programming
Also available on on site courses for larger groups
* Perl Programming
* Perl bootcamp
* Learning to program in Perl
* Perl Programming
Also available on on site courses for larger groups
Books covering this topic
Yes. We have over 700 books in our library. Books
covering Perl are listed here and when you've selected a
relevant book we'll link you on to Amazon to order.
Other Examples
This example comes from our "Topicalization and Special Variables" training module. You'll find a description of the topic and some
other closely related examples on the "Topicalization and Special Variables" module index page.
Full description of the source code
The complete training module that describes this source code
is availble for download (for limited use) from
our download centre.
Other resources
• Our Solutions centre provides a number of longer technical articles.
• Our Opentalk forum archive provides a question and answer centre.
• The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
• And there's a global index here.
• Our Opentalk forum archive provides a question and answer centre.
• The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
• And there's a global index here.
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public private or
on site courses, but the examples are made
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This program is copyright Well House Consultants Ltd. You are forbidden from using it for running your own training courses without our prior written permission. See our page on courseware provision for more details.
Any of our images within this code may NOT be reused on a public URL without our prior permission. For Bona Fide personal use, we will often grant you permission provided that you provide a link back. Commercial use on a website will incur a license fee for each image used - details on request.
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