Commands by qubyte (3)

  • Puts every word from a file into a new line

    Puts words on new lines, removing additional newlines.


    -1
    < <infile> tr ' \t' '\n' | tr -s '\n' > <outfile>
    qubyte · 2009-07-07 01:17:47 2
  • Grab your bibtex file from CiteULike.

    I love CiteULike. It makes keeping a bibtex library easy and keeps all my papers in one place. However, it can be a pain when I add new entries and have to go through the procedure for downloading the new version in my browser, so I made this to grab it for me! I actually pipe it directly into a couple of SED one liners to tidy it up a bit too. Extremely useful, especially if you make a custom BibTeX script that does this first. That way you can sort a fresh BibTeX file for each new paper with no faf. To use just replace with your CiteULike user name. It doesn't download entries that you've hidden but I don't use that feature anyway.


    -1
    curl -o <bibliography> "http://www.citeulike.org/bibtex/user/<user>"
    qubyte · 2009-03-26 23:08:14 0
  • Remove embedded fonts from a pdf.

    It's sometimes useful to strip the embedded fonts from a pdf, for importing into something like Inkscape. Be warned, this will increase the size of a pdf substantially. I tried this with only gs writing with -sDEVICE=pdfwrite but it doesn't seem to work, so I just pipe postscript output to ps2pdf for the same effect.


    1
    gs -sDEVICE=pswrite -sOutputFile=- -q -dNOPAUSE With-Fonts.pdf -c quit | ps2pdf - > No-Fonts.pdf
    qubyte · 2009-03-25 03:46:00 5

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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"

Find files that are older than x days
Find files that are older than x days in the working directory and list them. This will recurse all the sub-directories inside the working directory. By changing the value for -mtime, you can adjust the time and by replacing the ls command with, say, rm, you can remove those files if you wish to.

Define a quick calculator function
defines a handy function for quick calculations from cli. once defined: $ ? 10*2+3

Show word-by-word differences between two latex files, in color

Remove a range of lines from a file
Delete a range of line

geoip information
That makes a function you can put in your ~/.bashrc to run it when you need in any term with an IP as argument

Prefix command output with duration for each line
Prefixes each output line with time between it and the previous one.

Run the built in PHP-server in current folder
You must have PHP 5.4.0 or later to be able to run the built in server. This web server is designed for developmental purposes only, and should not be used in production. URI requests are served from the current working directory where PHP was started, unless the -t option is used to specify an explicit document root. If a URI request does not specify a file, then either index.php or index.html in the given directory are returned. If neither file exists, then a 404 response code is returned. If a PHP file is given on the command line when the web server is started it is treated as a "router" script. The script is run at the start of each HTTP request. If this script returns FALSE, then the requested resource is returned as-is. Otherwise the script's output is returned to the browser. Standard MIME types are returned for files with extensions: .css, .gif, .htm, .html, .jpe, .jpeg, .jpg, .js, .png, .svg, and .txt. The .htm and .svg extensions are recognized from PHP 5.4.4 onwards. More information here: http://php.net/manual/en/features.commandline.webserver.php

play high-res video files on a slow processor
Certain codecs in high res don't play so well on my Dell Mini 9. Using this command, I can play just about anything and it keeps the sound in sync to boot!

List top 10 files in filesystem or mount point bigger than 200MB
Specify the size in bytes using the 'c' option for the -size flag. The + sign reads as "bigger than". Then execute du on the list; sort in reverse mode and show the first 10 occurrences.

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