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Re^2: Unix shell versus Perl

by JavaFan (Canon)
on Aug 05, 2008 at 13:46 UTC ( #702362=note: print w/replies, xml ) Need Help??

in reply to Re: Unix shell versus Perl
in thread Unix shell versus Perl

Well, that quite depends on the setup. Many Linux distros use one big partition by default anyway (or at least have /usr on the root mount), so once you have anything, you have perl (assuming it's in /usr/bin/perl). And traditionally, the root mount contained /bin with just a small set of programs, just enough to get to the stage to mount other file systems. Anything interesting would be in /usr/bin anyway. Furthermore, mounting other file systems happens pretty early in the boot process anyway - so most rc scripts will have perl available, even if perl is not on the root mount.

But I've also worked for a company where we used Linux boxes that only had 2 Mb of memory, 25 Mb disks, and for which the OS had to be installable from a single floppy disk. Needless to say, said boxes didn't have Perl, although I used Perl a lot to create the distros.

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Re^3: Unix shell versus Perl
by Bloodnok (Vicar) on Aug 05, 2008 at 14:49 UTC
    ...there's an awful lot "goes on" after getting to single user run level...i.e. before the rest of the file systems are checked & mounted.

    A user level that continues to overstate my experience :-))

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[choroba]: The problem was bigger, as the test tried to call a method that didn't exist anymore
[marinersk]: :: ducking ::
[choroba]: because, someone renamed the method, but didn't notice it was used in the test, as the test was skipped
[marinersk]: Well, if the method doesn't exist, it would be hard to pass the test.
[choroba]: later, someone removed the new method, as all its usage places were safe, but didn't notice the test still used the old name
[choroba]: fortunately, it wasn't that hard to replace the method and fix a few remaining failures due to the changes we did to the codebase over the years
[marinersk]: choroba Sounds like a process improvement opportunity; tests may not all need to be run, but they should all be compiled with perl -c before check-in/promotion happens.
[choroba]: so, now I have the test, so I can start making changes in the code. Back to the original ticket, yay!
[marinersk]: I definitely love it when my $current_taask=& taskPop(); if ($current_task eq $original_task) { } is true.
[marinersk]: s/taask/task/g;

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