Perl on Michael’s Domain

Installing perl modules

Tue, 22 Jun 2021 00:00:00 +0000

I have not done this for perhaps a decade or more. But apparently, things are still the same on Ubuntu 18.04:

Batch renaming files on the command line

Tue, 28 Jun 2016 00:00:00 +0000

The default command line application for batch renaming files in Ubuntu 16.04 is called “rename”:rename 's/tk98i_/wt_tk98_/' *.tifIt uses Perl regular expressions with and the s/old/new/ syntax. The example above renames all files with the .tif extensions and replaces the th98i_ expression with wt_tk98_.Here are some more examples: http://tips.webdesign10.com/how-to-bulk-rename-files-in-linux-in-the-terminal

Find and replace with perl

Sun, 28 Jan 2007 00:00:00 +0000

To replace the string jeltsch.blogspot.com by the string mnm.no-ip.com/blog you can use perl:perl -pi.bak -e 's|jeltsch.blogspot.com|mnm.no-ip.com\/blog|g' *.html If you want to do a recursive replacement on a directory tree you can try:perl -pi.bak -e 's|jeltsch.blogspot.com|mnm.no-ip.com\/blog|g' find jeltsch.org -name ‘*.html’``

How to install perl modules

Tue, 10 Oct 2006 00:00:00 +0000

In order to check, whether a specific perl module is installed (e.g. Image::Info for this example) type:perl -MImage::Info -e1 If it is not installed, download it from CPAN, untar, change into the install directory and install like this:perl Makefile.PLmakemake test and then as root:make install