Commands using less

I've been using colordiff for years. wdiff is the new fav, except its colors. Word delimited diffs are more interleaved, easing the chore of associating big blocks of changes.

Uses pygments ( http://pygments.org/ ) to highlight the source code and a less pipe to scroll and show line numbers of the code.

kpsewhich is a tool for path and file lookup. It is a front-end of the kpathsea library. For one or more given package or file names it returns the complete path from within the TeX installation, that one which the compiler would actually use. Via backticks we can use it as argument to less, more, or any editor. For example:

usage: dng BRE [selection]

default selection is the last match

DNS is ok, but although domainnames may be easier to remember than IP numbers, it still requires typing them out. This can be error-prone. Even more so than typing IPv4 numbers, depending on the domainname, its length and complexity.

On Debian/Ubuntu the pygments script is called pygmentize and can be found in the python-pygments package.

For an overview of all available lexers, formatters, styles and filters use

Here is an example using more options

just like the original - just colored and with less

Use the following key binding to search

----------------------------------------------------------------

: Jump to line number n. Default is the start of the file.

: Jump to line number n. Default is the end of the file.

: Search for pattern. Regular expressions can be used. [/ = slash] Press / and then Enter to repeat the previous search pattern. Press ESC and then u to undo search highlighting.

: Go to next match (after a successful search).

: Go to previous match.

: Mark the current position with letter.

: Return to position letter. [' = single quote]

: Go to start of file.

: Go to end of file.

: Save current content (got from another program like grep) in a file.

: File information.

: continually read information from file and follow its end. Useful for logs watching. Use Ctrl+c to exit this mode.

: Toggle command-line option -option.

: Help.

Useful for situations where you have word lists or dictionaries that range from hundreds of megabytes to several gigabytes in size. Replace file.lst with your wordlist, replace 50000 with however many lines you want the resulting list to be in total. The result will be redirected to output.txt in the current working directory. It may be helpful to run wc -l file.lst to find out how many lines the word list is first, then divide that in half to figure out what value to put for the head -n part of the command.

This version now adds a header with consecutive numbering.

e.g.

This will take you to the relevant part of the man page, so you can see the description of the switch underneath.

This is a simple bash function and a key binding that uses commandlinefu's simple and easy search API. It prompts for a search term, then it uses curl to search commandline fu, and highlights the search results with less.

squeezed the monster (and nifty ☺) command from 7776 from 531 characters to 284 characters, but I don't see a way to get it down to 255. This is definitely a kludge!

create the function and run with

Great for channels like ukfDrumAndBass that only post music. No more need for third party browser plugins or websites that only convert one vid one at a time. It'll convert and save to CWD up to 300 of a user's videos to mp3s, one at a time. To increase, just increment the $count pattern. This is a concoction from commands #7718 and #7752, so it uses ffmpeg wget, curl, sed, and youtube-dl -- youtube-dl is only used to get the title of the video which it uses to name the mp3 file. You can use a different naming method if you want and the function should still work.

Instead of dumping the entire query to the screen, it will use 'less -S' to handle pagination. This means you can move back and forward through the result set, and instead of wrapping rows at screen boundaries, the table will extend off the screen, and can be scrolled left and right with arrow keys.

This command enables the user to append a search pattern on the command line when using less as the PAGER. This is especially convenient (as the example shows) in compressed files and when searching man pages (substituting the zcat command with man, however).

This of course assumes that lesspipe is installed. You can view the contents of many, many types of files in this way. Once lesspipe is installed, add to your .bashrc

export LESSOPEN="| /usr/bin/lesspipe %s" less file.jar

export LESSCLOSE="/usr/bin/lesspipe %s %s"

or

eval "$(lesspipe)"

Usage : tt [OCCURRENCE]

tt will display a tree from your actual path

tt .svn will display only line containing .svn