Commands by techie (33)

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show current directory
Opens a file or URL in the user's preferred application.

Get list of servers with a specific port open
Change the -p argument for the port number. See "man nmap" for different ways to specify address ranges.

List .log files open by a pid
Uses lsof to display the full path of ".log" files opened by a specified PID.

Find inside files two different patterns in the same line and for matched files show number of matched lines
The option -print0 for find and -0 for grep help prevent issue with weird characters or spaces in filenames. Furthermore with xargs there is no limited number of arguments that find can throw.

count and number lines of output, useful for counting number of matches
Write each FILE to standard output, with line numbers added. With no FILE, or when FILE is -, read standard input.

Move all but the newest 100 emails to a gzipped archive

scp a good script from host A which has no public access to host C, but with a hop by host B
middlehost allows ssh access from where you are but not securehost. Use nice ssh piping to simulate scp through A => B => C setting up the shell function if left as an exercise for the reader. ;-) Agent forwarding should avoid password typing.

list block devices
Shows all block devices in a tree with descruptions of what they are.

list block devices
Shows all block devices in a tree with descruptions of what they are.

Sort files in folders alphabetically
Creates one letter folders in the current directory and moves files with corresponding initial in the folder.


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