Check These Out
This takes a picture (with the web cam) every 5 minutes, and send the picture to your e-mail.
Some systems support
mail -a "References: "
so that all video surveillance emails are grouped in a single email thread.
To keep your inbox clean, it is still possible to filter and move to trash video surveillance emails (and restore these emails only if you really get robbed!)
For instance with Gmail, emails sent to me+trash@gmail.com can be filtered with "Matches: DeliveredTo:me+trash@gmail.com"
The coolest way I've found to backup a wordpress mysql database using encryption, and using local variables created directly from the wp-config.php file so that you don't have to type them- which would allow someone sniffing your terminal or viewing your shell history to see your info.
I use a variation of this for my servers that have hundreds of wordpress installs and databases by using a find command for the wp-config.php file and passing that through xargs to my function.
This could be added to .bashrc. Background: Linux usually saves history only on clean exit of shell. If shell ends unclean, history is lost. Also numerous terminals might confuse their history. With this variable set, history is immedeately written, accessible to all other open shells.
dir1 and all its subdirs and subdirs of subdirs ... but *no files*
will be copied to dir2 (not even symbolic links of files will be made).
To preserve ownerships & permissions:
$ cp -Rps dir1 dir2
Yes, you can do it with
$ rsync -a --include '*/' --exclude '*' /path/to/source /path/to/dest
too, but I didn't test if this can handle attributes correctly
(experiment rsync command yourself with --dry-run switch to avoid
harming your file system)
You must be in the parent directory of dir1 while executing
this command (place dir2 where you will), else soft links of
files in dir2 will be made. I couldn't find how to avoid this
"limitation" (yet). Playing with recursive unlink command loop
maybe?
PS. Bash will complain, but the job will be done.
numsum is part of of the num-utils package, which is available in some Linux distros and can also be downloaded at http://suso.suso.org/xulu/Num-utils. It contains about 10 different programs for dealing with numbers from the command line.
Obviously you can do a lot of things that the num-utils programs do in awk, sed, bash, perl scripts, but num-utils are there so that you don't have to remember the syntax for more complex operations and can just think: compute the sum, average, boundary numbers, etc.
you can use this command for mounting local directory to a remost directory..
The time zone names come from the tz database which is usually found at /usr/share/zoneinfo.
Read this before you down voting and comment that it is not working -> Wont work on latest versions ~75> since database file is locked and has to be decrypted. This is useful if you have an old hdd with a chrome installation and want to decrypt your old passwords fast.
