Commands by NelsonFAnderson (0)

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Realtime lines per second in a log file
Displays the realtime line output rate of a logfile. -l tels pv to count lines -i to refresh every 10 seconds -l option is not in old versions of pv. If the remote system has an old pv version: ssh tail -f /var/log/apache2/access.log | pv -l -i10 -r >/dev/null

Install pip with Proxy
Installs pip packages defining a proxy

Download an entire website
-p parameter tells wget to include all files, including images. -e robots=off you don't want wget to obey by the robots.txt file -U mozilla as your browsers identity. --random-wait to let wget chose a random number of seconds to wait, avoid get into black list. Other Useful wget Parameters: --limit-rate=20k limits the rate at which it downloads files. -b continues wget after logging out. -o $HOME/wget_log.txt logs the output

Remove all .svn folders
-depth argument will cause find to do a "depth first" tree search, this will eliminate the "No such file or directory" error messages

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

list the top 15 folders by decreasing size in MB
list the top 15 folders by decreasing size in MB

Print all the lines between 10 and 20 of a file
Similarly, if you want to print from 10 to the end of line you can use: sed -n '10,$p' filename This is especially useful if you are dealing with a large file. Sometimes you just want to extract a sample without opening the entire file. Credit goes to wbx & robert at the comments section of http://www.commandlinefu.com/commands/view/348/get-line1000-from-text.#comment

Play all the music in a folder, on shuffle
Page up for next song

Monitor a file with tail with timestamps added
Should be a bit more portable since echo -e/n and date's -Ins are not.

Get a free shell account on a community server
Bash process substitution which curls the website 'hashbang.sh' and executes the shell script embedded in the page. This is obviously not the most secure way to run something like this, and we will scold you if you try. The smarter way would be: Download locally over SSL > curl https://hashbang.sh >> hashbang.sh Verify integrty with GPG (If available) > gpg --recv-keys 0xD2C4C74D8FAA96F5 > gpg --verify hashbang.sh Inspect source code > less hashbang.sh Run > chmod +x hashbang.sh > ./hashbang.sh


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