Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options
 
PerlMonks  

Re: change the end of a path inside file

by jwest (Friar)
on Jul 17, 2002 at 19:13 UTC ( #182557=note: print w/replies, xml ) Need Help??


in reply to change the end of a path inside file

use File::Spec.

The splitpath method will seperate the file name from the directory. Take the file it returns, decrement it, and use the catpath method to rebuild the path.

This solution will be portable across most systems.

use File::Spec; my ($volume, $path, $file) = File::Spec->catpath($path_to_decrement); --$file; my $newpath = File::Spec->catpath($volume, $path, $file);
This way is a little pedestrian, but it gets the job done.

Hope this helps!

--jwest


-><- -><- -><- -><- -><-
All things are Perfect
    To every last Flaw
    And bound in accord
         With Eris's Law
 - HBT; The Book of Advice, 1:7

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://182557]
help
Chatterbox?
[stevieb]: ...from an I2C master. It's ugly and there are many changes I'm going to make, but I had not done anything like it before. It's designed for my RPi:: automated test platform; a system that does CI on *all* my RPi modules.
[shmem]: pseudo chip?
[stevieb]: well, what happens is the Arduino 'listens' for requests r/w, and does the appropriate thing when it's interrupted based on the 'register' address sent in. It's ugly as it was my first attempt, but I've got great new ideas I'm just sitting.
[stevieb]: ...down to implement now. Here's the sketch as it currently sits
[shmem]: well I use I2C and SPI and stuff, but creating a pseudo chip looks to me like lot of indirection and memory clutter... not?
[choroba]: Are you going to use the device soon? Related to your comment about "not having much time to do a lot of coding"...
[stevieb]: sure, but I'm just learning ;) I consider it practice to get a good understanding of what goes on *after* an I2C/SPI request is made
[shmem]: ah ok. Gonna read that. but now....
shmem compiles himself into his template
[stevieb]: this is my RPi:: distribution overall automation build system physical layout. It doesn't encompass all of my RPi dists yet, ...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (9)
As of 2017-06-25 22:42 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    How many monitors do you use while coding?















    Results (572 votes). Check out past polls.