Sunday, 15 November 2009


ARGV The special filehandle that iterates over command-line filenames in @ARGV. Usually written as the null filehandle in the angle operator "<>".
Note that currently "ARGV" only has its magical effect within the "<>" operator; elsewhere it is just a plain filehandle corresponding to the last file opened by "<>". In particular, passing "\*ARGV" as a parameter to a function that expects a filehandle may not cause your function to automatically read the contents of all the files in @ARGV.

$ARGV contains the name of the current file when reading from <>.

@ARGV The array @ARGV contains the command-line arguments intended for the script. $#ARGV is generally the number of arguments minus one, because $ARGV[0] is the first argument, not the program's command name itself. See $0 for the command name.

ARGVOUT The special filehandle that points to the currently open output file when doing edit-in-place processing with -i. Useful when you have to do a lot of inserting and don't want to keep modifying $_. See perldoc perlrun for the -i switch.

No comments:

Post a Comment

Tweets by @sriramperumalla