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Downloads a CRL file, determines the expiration time, and checks when it will expire
Useful if localhost is a small machine running BusyBox, which uses a slightly unusual format to set the date. Remotehost can be pretty much any Linux machine, including one running BusyBox. Uses UTC for portability.
My first command :) I made this command to log public addresses of a virtual interface who connects random VPN servers around the world.
Starts and shows a timer. banner command is a part of the sysvbanner package. Instead of the banner an echo or figlet commands could be used. Stop the timer with Ctrl-C and elapsed time will be shown as the result.
pretty much the same.
I use awk rather than grep and perl.
It looks like the URL has been updated.
The service tag can also be retrieved via snmp - potential for a for loop over a list of servers. I might have a look into doing an example.
using -u is better for standardizing date output and timezones, for servers in different timezones.
grabbed from Andrew Aylett post:
Take a picture from your webcam and save it to a jpeg.
A very slightly modified version of MarxBro's command.
This command takes a 1280x1024 p picture from the webcam.
If prefer it smaller, try changing the -s parameter: qqvga is the tiniest, vga is 640x480, svga is 800x600 and so on.
Get your smile on and press enter! :)
http://www.joachim-breitner.de/projects#screen-message now also supports reading stdin continuously to update what it shows, different ?slides? separated by a form feed character. Here, we feed the current time into it each second to create a large clock.
this one works on user crontab
On CentOS at least, date returns a boolean for the common date string formats, including YYYY-MM-DD. In the sample output, you can see various invalid dates returning 0 whereas a simple regex check would return 1 for the invalid dates.
-d, --date=STRING display time described by STRING, not `now'
The version of date on OS X does not appear to have this same option.
pauses exactly long enough to wake at the top of the hour
Format of the response: [-]HH:mm
simple and easy backup your history with timestamp
Choosing your year and month. You only need the gnu date command and bash. desiredDay of the week is (1..7); 1 is Monday.
If you want desiredDay of week (0..6); 0 is Sunday
desiredDay=6; year=2012; month=5; n=0; while [ $(date -d "$year-$((month+1))-1 - $n day" "+%w") -ne $desiredDay ]; do n=$((n+1)); done; date -d "$year-$((month+1))-1 - $n day" "+%x"
command to find out the unused SVN repositories from the server via svnlook. This lists the when the last commit (HEAD revision) has happened in the repository.