How do you use the Perl command in Linux?
In Linux, the perl command can be used to execute Perl scripts or run Perl code directly in the command line. Here are some examples of using the perl command:
- Run a Perl script.
perl script.pl
script.pl is the Perl script file that needs to be executed.
- Execute Perl code in the command line.
perl -e 'print "Hello, World!\n";'
This will output “Hello, World!” in the command line.
- Read Perl code from standard input and execute it.
echo 'print "Hello, World!\n";' | perl
This will display “Hello, World!”
- Interactive mode utilizing the perl command:
perl -d
This will activate the interactive debugging mode, where you can execute Perl code line by line and debug it.
The above are some basic examples of using perl commands, which you can adapt according to your own needs and circumstances.