Check These Out
This is helpful for shell scripts, I use it in my custom php install script to schedule to delete the build files in 3 hours, as the php install script is completely automated and is made to run slow.
Does require at, which some environments without crontab still do have.
You can add as many commands to the at you want. Here's how I delete them in case the script gets killed. (trapped)
atq |awk '{print $1}'|xargs -iJ atrm J &>/dev/null
Slightly shorter to type
If you set noclobber to on, bash won't allow redirection to overwrite existing files .
$ set -o noclobber command turn the option on (default it s off ) .
You can still append information but not overwrite the file .to turn it back off use : $ set +o noclobber .
I use it because i overwrite a file by accident , after thought , content of the file was very important , creating a one more file mean nothing for my hard disk (we are not anymore on the 64 k memory time) , but content of file is far much important . What we call exeprience :(
Reads psuedorandom bytes from /dev/urandom, filtering out non-printable ones. Other character classes can be used, such as [:alpha:], [:digit:] and [:alnum:]. To get a string of 10 lowercase letters:
$ tr -dc '[:lower:]' < /dev/urandom | head -c 10
Fast and easy way to find all established tcp connections without using the netstat command.
This one-liner greps first 30 direct URLs for .torrent files matching your search querry, ordered by number of seeds (descending; determined by the second number after your querry, in this case 7; for other options just check the site via your favorite web-browser).
You don't have to care about grepping the torrent names as well, because they are already included in the .torrent URL (except for spaces and some other characters replaced by underscores, but still human-readable).
Be sure to have some http://isup.me/ macro handy (someone often kicks the ethernet cables out of their servers ;) ).
I've also coded a more user-friendly ash (should be BASH compatible) script, which also lists the total size of download and number of seeds/peers (available at http://saironiq.blogspot.com/2011/04/my-shell-scripts-4-thepiratebayorg.html - may need some tweaking, as it was written for a router running OpenWrt and transmission).
Happy downloading!
It's somewhat common ISPs to intercept DNS queries at port 53 and resolve them at their own.
To check if your ISP is intercepting your DNS queries just type this command in the terminal.
"#.abc" it's an OK answer.
But if you get something like "I am not an OpenDNS resolver.", yep, you are beign cheated by your ISP.
The hyphen tells vim to open from STDOUT - saves having to create temporary files.
