The -M, -A, and -C file test operators return the file modification, access, and creation times in days since the start of the program. Why? Why why why? Does anyone actually use the values for anything other than to compare them to each other?
The relativity of the dates produced by -M, -C and -A are useful for things like "delete all *.tmp files more than 5 days old" etc.
For example, this lists all the .pl file in the current directory that have been modified in the last 24 hours.
perl -le "-M() < 1 and print for map glob, @ARGV" *.pl
My least favorite oddity is the need to use /g option on a regex in order for pos to be set.
Examine what is said, not who speaks.
Silence betokens consent.
Love the truth but pardon error.
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||