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PO
 

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  1. PO
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    <p>Your questions: </p> <ul> <li><p><strong>Where do I put this part, which tells it to save the data to a log?</strong></p> <p>You edit your crontab file to add a cron entry. The cron entry contains information regarding what command to run and when to run it. For example, here is a cron entry that you might use:</p> <p><code>0 2 * * * /usr/bin/time -a ~/output.log ~/uploadtimer.sh</code></p> <p>This entry says to run the command at 2AM every day (minute 0, hour 2, every day of the month, every month, every day of the week). For more info on the crontab syntax, you can check out <a href="http://www.adminschoice.com/docs/crontab.htm" rel="nofollow noreferrer">http://www.adminschoice.com/docs/crontab.htm</a> .</p> <p>To make a cron entry, use the command <code>crontab -e</code> which will load up a vi text editor. Enter the line above and then save it. This creates the cron job. If you don't know vi, just follow this:</p> <ul> <li>from the shell, enter <code>crontab -e</code> to start editing</li> <li>press <kbd>i</kbd> to enter Insert mode</li> <li>enter the line as above</li> <li>press <kbd>ESC</kbd> to exit Insert mode</li> <li>press <kbd>:</kbd> to switch to Command mode - you will see the cursor at the bottom of the screen</li> <li>enter <kbd>wq</kbd> and hit <kbd>Enter</kbd> - this <strong>W</strong>rites and <strong>Q</strong>uits the file. You should see a message like <code>crontab: installing new crontab</code>. <p></li> </ul> <p>If you run into any problems using vi, use <kbd>ESC</kbd> a few times to exit whatever mode it's in, do <kbd>:</kbd> to enter Command mode, and then <kbd>q!</kbd> to force a quit (i.e., quit without saving anything), and then try again from the beginning.</p></li> </ul> <p><p></p> <ul> <li><p><strong>It refers to the script itself so does it need to be separate from the script?</strong></p> <p>Yes.</p></li> </ul>
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    1. POHow to make a cronjobbable script to clock uploads?
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    1. USweiji
    1. USweiji
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    1. COWhat version of cron requires tabs and not spaces?
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      1. USglenn jackman
    2. COSorry about that - I learned it that way from somewhere and just stuck with it that way. Mostly because I don't like using vi. Thanks for pointing out my slop - I've fixed my answer.
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      1. USweiji
    3. COYou aren't forced to use vi. If you prefer something like pico, use the command "VISUAL=/usr/bin/pico crontab -e". Better yet, if you have and editor preference, set the environment variables VISUAL and EDITOR to the full path of your editor in your .bashrc.
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      1. USbstpierre
 

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