Commands by peter

Commands by peter_shook (2)

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find examples of multiline idioms in Linux drivers source code

The Linux Cross Referencer is nice: https://elixir.bootlin.com/linux/latest/source but when you want to find an example usage of an idiom across multiple lines, piping the ack-grep output to less is quicker. The --cc limits the search to C code, -i to ignore case, -A4 because most wait_event variants have 4 arguments that may be on lines after the function name. Use --make to search makefiles Show Sample Output
This is sample output - yours may be different.
```
--
drivers/char/ipmi/ipmb_dev_int.c:92:            ret = wait_event_interruptible(ipmb_dev->wait_queue,
drivers/char/ipmi/ipmb_dev_int.c-93-                            !list_empty(&ipmb_dev->request_queue));
drivers/char/ipmi/ipmb_dev_int.c-94-            if (ret)
drivers/char/ipmi/ipmb_dev_int.c-95-                    return ret;
drivers/char/ipmi/ipmb_dev_int.c-96-
--
```
0

ack --cc -i -A4 wait_event linux/drivers | less -i # / list_empty

peter_shook · 2021-06-25 11:03:47 137
compare two Microsoft Word documents

http://meld.sourceforge.net/ http://www.winfield.demon.nl/
This is sample output - yours may be different.
2

meld <(antiword microsoft_word_a.doc) <(antiword microsoft_word_b.doc)

peter_shook · 2009-04-23 15:14:32 8

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download newest adminer and rename to it's version accordingly

If the version already downloaded. it will not download again

convert a latex source file (.tex) into opendocument (.odt ) format

require the tex4ht package . You can open the file with openoffice , I use it much for correct my spelling and grammar .

Generate a list of installed packages on Debian-based systems

This command is useful when you want to install the same packages on another fresh OS install for example. To do that, use: $ sudo dpkg --set-selections < LIST_FILE

Install pip with Proxy

Installs pip packages defining a proxy

Multi-thread any command

For instance: $ find . -type f -name '*.wav' -print0 |xargs -0 -P 3 -n 1 flac -V8 will encode all .wav files into FLAC in parallel. Explanation of xargs flags: -P [max-procs]: Max number of invocations to run at once. Set to 0 to run all at once [potentially dangerous re: excessive RAM usage]. -n [max-args]: Max number of arguments from the list to send to each invocation. -0: Stdin is a null-terminated list. I use xargs to build parallel-processing frameworks into my scripts like the one here: http://pastebin.com/1GvcifYa

Create a video that is supported by youtube

Takes an mpeg video and coverts it to a youtube compatible flv file. The -r 25 sets the frame rate for PAL, for NTSC use 29.97

GREP a PDF file.

This is a good alternative to pdf2text for Ubuntu. To install it: sudo apt-get install python-pdfminer

Display a list of all PHP classes that are called statically

Searches all .php files for a static instantiation of a class and displays the class names along with their frequencies.

Dump dvd from a different machine onto this one.

You can use this to directly dump from machine A (with dvd drive) to machine B (without dvd drive) . I used this to copy dvd using my friend's machine to my netbook. Above command is to be issued on machine B. Advantages : 1) No wasting time dumping first to machine A and then copying to Machine B. 2) You dont need to use space on Machine A. In fact, this will work even when Machine A doesnt have enough hdd space to dump the DVD. Use -C ssh option on slow networks (enables compression). you can replace "dd if=/dev/dvd" with any ripping command as long as it spews the iso to stdout.

Convert files from DOS line endings to UNIX line endings

This method will also convert mac line endings.

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