21 1 1 * * /home/accont/clearaccount.sh

* Let's see how to schedule a task to run only on weekdays(monday to friday)

0 10 * * 1-5 /home/account/cleartemp.sh

Adding and Editing Entries in Crontab and Now that you know how crontab entries are formated, it's time to put some of your entries into crontab list. To do this, you can use crontab command. By specifying -e option, you'll be taken to default text editor to add and edit your crontab list. [crontab -e]

Another method of manipulating your crontab entries is to create and save a text file with your crontab entries. You can load your list into crontab by using following command: [crontab mycrontablist] where mycrontablist is file containing your entries.

Viewing Crontab: [crontab -l]

You can view your current crontab list by specifying -l option. Issuing this command will print out a list of all your current jobs in crontab list

Removing Crontab: [crontab -r]

The -r option removes your current crontab file. Issuing this command will empty contents of current user's crontab file

Output from cron

Usually output of cron gets mailed to owner of process or person or email id specified in MAILTO variable. To set MAILTO variable, you'll have to add following command to top of your crontab : MAILTO="your_email_address@domain.com"

If you have a command that is run frequently, and you don't want output to be emailed each time, you can redirect output to a log file cmd >> log.file, so your job would be something like this.

0 18 * * * /home/user/backup.sh>>log.file

If you don't want any output at all, you can redirect output to a null file : cmd>>/dev/null

0 18 * * * /home/user/backup.sh>>/dev/null

Press F5 key to reload page. Press F4 & F5 at same time to have page reloaded at page top instead of wherever you had scrolled to.

Press Esc key to stop current page from loading.

Press CTRL + N to open current page in a new window.

All usual shortcuts work too. CTRL + P opens print dialog, CTRL + A highlights everything on page, CTRL + C copies what you have highlighted.

Have you ever come across a web page where text was too large or too small to read easily? If you have a mouse with a wheel and use Internet Explorer, just hold down Ctrl key and roll wheel. The text will get smaller or larger depending which way you roll wheel. Neat!

Netscape users and users without a wheel mouse will have to go to view menu to change text sizes. Netscape reloads entire page, IE resizes text without reloading page.