On Tue, Dec 21, 2004 at 12:29:58PM +0300, Alexei Alexandrov wrote: > Sorry, for reposting - not sure that this message is on the list since > I posted it via Google services previously which might be not > correct... >
I don't remember seeing the first message, so it probably didn't get accepted onto the perl.org list servers from google. > I don't know if it's a right place to post my message but anyway... Arguably it is the correct place. (ie more correct than the perl5-porters list) > I guess perltrap doc page should be updated regarding perl vs. shell > bevavior differences. Today I ran into problem with my shell script > when I tried to compare strings with -eq operator. Oops, I was quite > surprises to learn that it's for numbers! And == operator is for > strings... Quite the contrary, in Perl we use == to treat vars as > numbers and eq - for strings. Ooh. Interesting. Well spotted. I added this item to perltrap: =item * The shell's C<test> uses "=", "!=", "<" etc for string comparisons and "-eq", "-ne", "-lt" etc for numeric comparisons. This is the reverse of Perl, which uses C<eq>, C<ne>, C<lt> for string comparisons, and C<==>, C<!=> C<< < >> etc for numeric comparisons. Nicholas Clark
