Commands by outly3r

Commands by outly3r (1)

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Generate a Random (unicast) MAC address

- The last sed expression ensures the unicast/multicast bit is set to zero - The greedy space replacements are for portability across UNIX seds (note there's TWO spaces and not just one, as this web shows, in s/^ */) Show Sample Output
This is sample output - yours may be different.
```
e0:91:cd:46:f8:18
```
0

od -An -N6 -tx1 /dev/urandom | sed -e 's/^ *//' -e 's/ */:/g' -e 's/:$//' -e 's/^$.$[13579bdf]/\10/'

outly3r · 2012-08-31 13:15:03 8

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Backup all starred repositories from Github

all out

How to force a userid to log out of a Linux host, by killing all processes owned by the user, including login shells:

grep (or anything else) many files with multiprocessor power

Parallel does not suffer from the risk of mixing of output that xargs suffers from. -j+0 will run as many jobs in parallel as you have cores. With parallel you only need -0 (and -print0) if your filenames contain a '\n'. Parallel is from https://savannah.nongnu.org/projects/parallel/

Show whats going on restoring files from a spectrum protect backup

spectrum protect's dsmc command shows file names and total amount of restore. This command shows which files are actually open and their siz in GB and highlights the change to the previous output

find out which directory uses most inodes - list total sum of directoryname existing on filesystem

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Quick directory bookmarks

Set a bookmark as normal shell variable $ p=/cumbersome/path/to/project To go there $ to p This saves one "$" and is faster to type ;-) The variable is still useful as such: $ vim $p/ will expand the variable (at least in bash) and show a list of files to edit. If setting the bookmarks is too much typing you could add another function $ bm() { eval $1=$(pwd); } then bookmark the current directory with $ bm p

change microdvd subtitles framerate

this command example converts to 25 fps subtitles that were originally created for 24 fps movie

pipe commands from a textfile to a telnet-server with netcat

sends commands specified in $commandfile to the telnet-server specified by $telnetserver. to have newlines in $commandfile interpreted as ENTER, save the file in CR+LF (aka "Windows-Textfile") format. if you want to save the output in a separate file, use: $nc $telnetserver 23 < $commandfile > $resultfile

files and directories in the last 1 hour

added alias in ~/.bashrc alias lf='find ./* -ctime -1 | xargs ls -ltr --color'

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