Commands by talkiwalki (1)

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exclude file(s) from rsync
rsyncs files to a server excluding listed files also a file can be used to exclude common exclude rules and/or to exclude a ton of files, like so: $rsync --exclude-from '~/.scripts/exclude.txt' where exclude.txt has one rule per line: *.mp3 *.svn*

Quickly find a count of how many times invalid users have attempted to access your system

Delete all non-printing characters from a file
tr has some predefined sets of characters that are more convenient to use than characters codes

Configuring proxy client on terminal without leaving password on screen or in bash_history
Prompts the user for username and password, that are then exported to http_proxy for use by wget, yum etc Default user, webproxy and port are used. Using this script prevent the cleartext user and pass being in your bash_history and on-screen

static compilation

Anti DDOS
Takes IP from web logs and pipes to iptables, use grep to white list IPs.. use if a particular file is getting requested by many different addresses. Sure, its already down pipe and you bandwidth may suffer but that isnt the concern. This one liner saved me from all the traffic hitting the server a second time, reconfigure your system so your system will work like blog-post-1.php or the similar so legitimate users can continue working while the botnet kills itself.

Install pip with Proxy
Installs pip packages defining a proxy

Show all the available information about your current distribution, package management and base
Just run this command and it will printout all the info available about your current distribution and package management system.

Find the package that installed a command

system beep off


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