Basic Vi Commands,and some perl samples.

VI;
Good link to learn vi.

http://www.cs.colostate.edu/helpdocs/vi.html

Lists all the basic commands required to edit in VI on the Cygwin
environment.

Perl :
A simple perl script:

$> vi first.pl
#!/usr/bin/perl

print "hello world";

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- Save and Exit
- Give it execute permissions - chmod 755 first.pl
- Check the permissions

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- Execute it
./first.pl

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Similarly, try this - this prints the string 10 times

for ( 1.. 10 ) {
printf (" hello world" );
}