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https://github.com/tambeta/scripts

Sundry command-line scripts for Unix-like systems
https://github.com/tambeta/scripts

arch arch-linux archlinux backup bash bash-script control-vlc eesti estonia iptv perl stream

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Sundry command-line scripts for Unix-like systems

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README 

        

This repo contains a few sundry scripts potentially useful to the general

GNU/Linux-using public. The scripts are categorized into directories as follows:



* `arch` - [Arch Linux](http://archlinux.org)-specific scripts

* `dev` - generic software development-related scripts

* `eesti` - scripts specific to Estonian services

* `perl` - [Perl](https://www.perl.org/)-specific scripts

* `X` - scripts useful within a graphical user environment (X11)



The root directory contains miscellaneous other scripts, `lib` currently only

contains backends for `backup`, `data` contains configuration files. The scripts

expect a full-featured modern Linux system as their environment; standard

requirements like `perl`, `awk`, `wget` etc. are not listed for each script.

Many scripts can be run with no arguments, `-h` or `--help` for usage info. I'm

guilty of the mortal sin of using tabs (4) instad of spaces, so beware.



## backup



A multi-purpose script for backing up a directory tree into a tarball or via

[duplicity](http://duplicity.nongnu.org/). The script sources `.backup.conf`

from the current working directory for options. See `.backup.conf.example` for a

template and explanations of options. The tar backend supports



* numbered backups (000, 001, ...)

* rotating a fixed maximum number of backups through `logrotate`

* e-mailing the tarball through `mutt`

* keeping a log file for backups in README



Requires:



* GNU `tar` (for the tar backed)

* `duplicity` (for the duplicity backend)

* `logrotate` (for rotating the backups)

* `mutt` (for e-mailing the backups)



See `backup`, `lib/backup*` and `.backup.conf.example` for details.



## mp3tag



```

mp3tag {-t | -f} filename [filename ...]

```



Copy mp3 tags to the filename as `ARTIST - TITLE.mp3` (`-f`) or write the artist

and title tags to the mp3 file (`-t`) based on the filename formatted as such. Requires

[eyeD3](http://eyed3.nicfit.net/).



## vid2x264



```

Convert a video stream into high quality x264; by default 720p, CRF 20, 

preset: slow.

```



Convenience frontend to `ffmpeg`. Convert input to x264 video, based on a

hardcoded profile. Available profiles are currently `720high` and `480med`.



Usage example:



`vid2x264 -i input.mp4 -p 720high output.mkv`



## youtube2mp3



```

Convert a Youtube video or playlist specified by a passed URL to mp3, use

mp3tag to write ID3 tags. Arguments are passed to youtube-dl.

```



Requires `youtube-dl` and `mp3tag` (see above) on `$PATH`.



## arch/ckfpkgs



```

Check whether foreign packages have become available in binary 

repositories

```



## arch/nongrppkgs



```

List explicitly-installed packages that are not part of a group

```



## arch/pkgdate



```

Output packages sorted by install date, one per line with the install 

date prepended to the package name. All command line arguments are 

passed on to pacman.

```



## arch/rqfpkgs



```

List foreign packages (e.g. from AUR) that are required by other 

packages

```



## dev/reflow



A Perl script accepting a block of comments (lines starting with `#` or `//`;

also handles Python docstrings) on its standard input and piping a nicely

formatted result to its standard output.  Use as an editor extension (Geany,

vim, ...). Requires

[Text::Autoformat](http://search.cpan.org/~neilb/Text-Autoformat-1.73/lib/Text/Autoformat.pm)

and pipes the cleaned input through its main routine.  As an extended feature,

supports formatting argument list documentation, i.e.



```

	// Add a tool to the toolbar. Attributes:

	//

	// id - identifier string, required

	// toggle - a boolean specifying whether the tool is a toggle button

	// handlers - an object of [jQuery] event handlers, keyed by event. The handler will 

	// receive the tool spec object as event.data.

```



will be formatted as



```

	// Add a tool to the toolbar. Attributes:

	// 

	// id       - identifier string, required

	// toggle   - a boolean specifying whether the tool is a toggle button

	// handlers - an object of [jQuery] event handlers, keyed by event. The 

	//            handler will receive the tool spec object as event.data.

```



## dev/sshagconn



This script attempts to solve the problem that we would like to have a) secure

and b) convenient SSH authentication even in environments that are volatile,

lack secure storage or are not entirely under our control. The specific case

that inspired creation of this script was SSH access to git remotes from Docker

containers on a shared server. Setting up SSH keys is beyond the scope of this

document, but this is [covered in detail

elsewhere](https://confluence.atlassian.com/bitbucket/set-up-ssh-for-git-728138079.html).



`sshagconn` connects to a running

[`ssh-agent`](https://linux.die.net/man/1/ssh-agent) or launches one if it is

not running and consigns the desired SSH private key under its management. The

private key should be encrypted with a passphrase and in this case, the

passphrase is requested only once between container or machine reboots.  On

other terminals, the script may simply be run without any further involvement

from the user to set up environment variables pointing to the running

`ssh-agent` instance. `sshagconn` is meant to run just as `ssh-agent` itself,

i.e. it outputs some instructions to be parsed by the shell. In Bash, this is

best achieved with process substitution:



```

$ source <(sshagconn /path/to/keyfile)

```



It is convenient to alias this to a easily remembered token:



```

$ alias github='source <(sshagconn /path/to/keyfile)'

$ alias > ~/.bash_aliases

$ echo 'source ~/.bash_aliases' >> ~/.bashrc

```



The final step is to link the key file to the host name in SSH configuration.

Add a similar block to `~/.ssh/config` for each host:



```

Host github

HostName github.com

IdentityFile /path/to/keyfile

```



In the future, you only need to invoke `github` on each terminal that you wish

to use for pushing to remotes:



```

$ github

$ git push

```



## eesti/bank



```

A script to analyze a Swedbank CSV bank statement and group 

expenditures by function, based on the groups defined in 

`statementgroups`. Pass the statement and statement groups filenames as 

the arguments.

```



What it says on the tin. Pass a CSV account statement from Swedbank and a

statement groups file (see `data/statementgroups.example`, first column is the

group, second column is a pattern (full Perl regexp, really) to match against

the transaction comment or recipient). The output is a neat table of grouped

expenditures and incomes. Requires

[Text::ASCIITable](http://search.cpan.org/~lunatic/Text-ASCIITable-0.20/lib/Text/ASCIITable.pm)

and [Text::CSV](http://search.cpan.org/~makamaka/Text-CSV-1.33/lib/Text/CSV.pm).



## eesti/iptv



A script for watching or capturing Elion's multicast-based IPTV. Reads `data/iptvrc` for channel 

definitions.  If the passed network interface is on IPTV_NET, attempt to open the multicast stream, 

otherwise fall back to the web stream. For use with the new router firmware (>=8.C.D.9); see older 

versions (<2016-05) for use with the separate IPTV subnet.



Requires:



* [VLC](http://www.videolan.org/vlc/index.html)

* [mplayer](http://www.mplayerhq.hu/design7/news.html) (for capturing)



`iptvrc` format:



* 1st column - channel ID

* 2nd column - mcast stream URL

* 3rd column - fallback (web) stream URL



Usage:



```

iptv [-c output.mp4] [-a] [-i interface]

```



* `-i interface` - network interface to use

* `-c filename` - dump stream to `filename` instead of opening in VLC

* `-a` - use alternative (fallback) stream



__Note:__ This script possibly requires one or more of the following to use: a) spoof a set-top 

box's MAC address to the desired network interface, b) set up the multicast route (`route add -net 

224.0.0.0 netmask 240.0.0.0 dev interface_name`) c) force your system to use IGMPv2 d) add an 

`iptables` rule to accept multicast packets, if using the firewall. Please do not contact me about 

troubleshooting your network configuration.



## eesti/r2get.py



A script for downloading shows from [Raadio 2](http://r2.err.ee/). See `r2get.py

-h` for more or less comprehensive usage instructions, and the file header for

technical details.



Requirements:



* Python >=2.7, with

  * [mutagen](https://mutagen.readthedocs.org/en/latest/)

  * [Beautiful Soup 4](http://www.crummy.com/software/BeautifulSoup/)

* [ffmpeg](https://www.ffmpeg.org/)

* [rtmpdump](https://rtmpdump.mplayerhq.hu/)



## eesti/weather



```

Without arguments, print the current temperature from 

meteo.physic.ut.ee If -R is given, print the record temperature days 

this year. If -r is given, reverse the order (i.e. display the coldest 

dates). If -i is given, invert minima and maxima (i.e. show warmest 

daily minima with -R, coldest daily maxima with -Rr). -n determines the 

number of dates to output. -y determines year, current year by default.

```



## perl/plckmods



```

Utility for finding all Perl files under the current directory and 

listing dependency modules. $* is passed to scandeps.pl. Pass -n to 

list unavailable dependencies, in such case $* is ignored.

```



Requires

[scandeps.pl](http://search.cpan.org/~autrijus/Module-ScanDeps-0.54/script/scandeps.pl)



## perl/plinstall



```

Install Perl modules to a specific directory. Pass the prefix as the 

first argument and any modules to install as subsequent arguments.

```



## perl/plmodavail



```

Check availability of a Perl module

```



## perl/plstordmp



```

Dump the contents of a Storable serialized in a file, file name passed 

as the command line argument

```



## X/ckfs



```

Check if there are full-screen windows with title matching a pattern, 

in which case disable power management. Useful for running as a 

frequent cron job or from a periodic script.

```



## X/pidginctl



```

Command-line control of Pidgin via D-Bus. Currently toggles available / 

offline mode.

```



## X/remoted.pl



A remote control daemon leveraging the power of [LIRC](http://www.lirc.org/) to

turn your Android device into a remote for your machine using a client such as

[this

one](https://play.google.com/store/apps/details?id=com.chham.lirc_client&hl=en).



Usage:



* Set up LIRC on your machine. You may use the [generic remote

  definition](https://bpaste.net/raw/e1c14b4acbfc), either way, `remoted.pl`

  expects `devinput` as the remote's ID.

* Set up the

  [client](https://play.google.com/store/apps/details?id=com.chham.lirc_client&hl=en)

  on your android device, download the `devinput` definition from your LIRC

  server and configure your remote. Note: make sure to use SIMULATE mode.

* Create an action mapping file, see `data/remotedrc` as an example. This either

  maps actions to a command to run (two fields) *or* invokes an internal

  function (three or more fields). In the latter form, the second field is the

  name of the function in angle brackets and the rest are its arguments. Two

  functions are available:



  * `` - Control VLC via [D-Bus /

	MPRIS](http://specifications.freedesktop.org/mpris-spec/latest/). See the

	[specification](http://specifications.freedesktop.org/mpris-spec/latest/Player_Interface.html)

	for details; methods for most expected actions (play, stop, seek, etc.) are available.

  * `` - Start VLC and open the passed URI (3rd field). If VLC is

	already running, no new instance is spawned.

* Run `remoted.pl`, passing the action mapping file as a parameter. You should

  be able to control VLC and invoke any other actions via your Android device

  now.



## X/spotifyctl



```

Command-line control of Spotify. Pass "play", "pause", "next", "prev" 

or "previous" as the argument.

```



## X/windowdim



```

Resize a window (partially) matching the title.

```



Requires `xdotool`, `xwininfo`.