I don't use linux enough so here's my cheat sheet when I have to change the crontab settings on my web host. It's not meant to be comprehensive but just the commands that I use. I've found the telnet program Putty works pretty good for SSH connections. I like Computer Hope as it has DOS equivalents for Unix commands. Very helpful for an lame old DOS user.

Command prompt:

• crontab -l lists out the cron jobs.
• crontab -e brings up the jobs in vi editor so you can change them.

Editor:

• i or Insert to start inserting text.
• Esc stops insert.
• :w writes changes.
• :q quits.
• :q! quits without saving changes.

There's a ton of other commands but that gets me around at least

Cron:

• Intro to Cron
• Crontab help at Computer Hope