Commands by TetsuyO (5)

  • Find today created files

    Finds files modified today since 00:00, removes ugly dotslash characters in front of every filename, and sorts them. *EDITED* with the advices coming from flatcap (thanks!)


    -2
    find -maxdepth 1 -type f -newermt "00:00" -printf "%f\n" | sort
    TetsuyO · 2013-03-23 12:50:01 4
  • Open (in vim) all modified files in a git repository

    This oneliner gets all the 'modified' files in your git repository, and opens all of them in vim. Very handy when you're starting to work in the morning and you simply want to review your modified files before committing them. Maybe there are better ways to do that (and maybe integrated in vim and/or git, who knows), but I found quicker to do this oneliner.


    0
    vim `git status | grep modified | awk '{print $3}'`
    TetsuyO · 2012-11-19 09:48:46 2
  • Find artist and title of a music cd, UPC code given (first result only)

    Substitute that 724349691704 with an UPC of a CD you have at hand, and (hopefully) this oneliner should return the $Artist - $Title, querying discogs.com. Yes, I know, all that head/tail/grep crap can be improved with a single sed command, feel free to send "patches" :D Enjoy! Show Sample Output


    -1
    wget http://www.discogs.com/search?q=724349691704 -O foobar &> /dev/null ; grep \/release\/ foobar | head -2 | tail -1 | sed -e 's/^<div>.*>\(.*\)<\/a><\/div>/\1/' ; rm foobar
    TetsuyO · 2011-01-30 23:34:54 0
  • Transform a portrait pdf in a landscape one with 2 pages per page

    This is an example of the usage of pdfnup (you can find it in the 'pdfjam' package). With this command you can save ink/toner and paper (and thus trees!) when you print a pdf. This tools are very configurable, and you can make also 2x2, 3x2, 2x3 layouts, and more (the limit is your fantasy and the resolution of the printer :-) You must have installed pdfjam, pdflatex, and the LaTeX pdfpages package in your box. Show Sample Output


    3
    pdfnup --nup 2x1 --frame true --landscape --outfile output.pdf input.pdf
    TetsuyO · 2010-12-21 14:20:06 0
  • Create a pdf version of a manpage

    Quick and dirty version. I made a version that checks if a manpage exists (but it's not a oneliner). You must have ps2pdf and of course Ghostscript installed in your box. Enhancements appreciated :-)


    60
    man -t manpage | ps2pdf - filename.pdf
    TetsuyO · 2010-12-19 22:40:18 5

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Make sure a script is run in a terminal.
Exit with error if script is not run in a terminal

Go up multiple levels of directories quickly and easily.
This is a kind of wrapper around the shell builtin cd that allows a person to quickly go up several directories. Instead of typing: cd ../.. A user can type: cd ... Instead of: cd ../../.. Type: cd .... Add another period and it goes up four levels. Adding more periods will take you up more levels.

List process in unkillable state D (iowait)

convert wav files to ogg
cd to the folder containing the wav files and convert them all to ogg format. in my sample output i use the -a and -l flags to set the author and album title. to get the oggenc program in ubuntu linux run: sudo apt-get install oggenc

Install pip with Proxy
Installs pip packages defining a proxy

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

rsync + find
rsync from source to dest all between >30

The Hidden PS
While going through the source code for the well known ps command, I read about some interesting things.. Namely, that there are a bunch of different fields that ps can try and enumerate for you. These are fields I was not able to find in the man pages, documentation, only in the source. Here is a longer function that goes through each of the formats recognized by the ps on your machine, executes it, and then prompts you whether you would like to add it or not. Adding it simply adds it to an array that is then printed when you ctrl-c or at the end of the function run. This lets you save your favorite ones and then see the command to put in your .bash_profile like mine at : http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html Note that I had to do the exec method below in order to pause with read. t () { local r l a P f=/tmp/ps c='command ps wwo pid:6,user:8,vsize:8,comm:20' IFS=' '; trap 'exec 66

Find the package that installed a command

Install pip with Proxy
Installs pip packages defining a proxy

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