Perloption

Perl的資料型態大致分為四種：Scalar、Scalar Array、Hash Array、References， 看起來雖少但用起來卻綽綽有餘。尤其在寫Perl程式時可以不必事先宣告變數，這一點對剛學 ...

This command-line switch allows you to run code from the command line, instead of having to write your program to a file and then execute it.

To use Getopt::Long from a Perl program, you must include the following line in your Perl program: use Getopt::Long;. This will load the core of the Getopt:: ...

2018年8月31日 — 7 of the most useful Perl command line options · -v to get the Perl version · -V to get compiler details · -e execute code on the command line.

2018年11月28日 — When running perl -n or perl -p , each command line argument is taken as a file to be opened and processed line by line. If you want to pass ...

enables some rudimentary switch parsing for switches on the command line after the script name but before any filename arguments (or before a --). Any switch ...

Tells Perl to extract a script that is embedded in a message, by looking for the first line that starts with #! and contains the string perl. Any meaningful ...

2004年8月10日 — Perl has a large number of command-line options that can help to make your programs more concise and open up many new possibilities for ...