The classic programming trope for testing chdir is:
chdir $my_dir or die("Cannot cd into directory $my_dir.\n");
It's a moderately important trope as well. At a former employer, they had shell code that went something like:
#!/bin/ksh
Important_Directory=/foo/bar
cd Important_Directory
rm -rf *
#
# more stuff here
#
See, when chdir fails, and you're root, you end up in the root directory. And the server on which this script was run, well the Important Directory was moved for some reason. And so the script cd's to "/" and the next command started running..
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.