lharding / lsh-bin

Shell utilities toolkit

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Various Minor Scripts

I prefer using tiny scripts to aliases because it saves me going around to all my open terminals and re-sourcing .profile, and I have them available from contexts that aren't my main shell. This is the collection of those scripts that aren't machine-specific.

Fair warning: these are shop built jigs and may lack niceties like polite usage strings when given bad parameters.

The Scripts

Not everything is documented here. Some scripts are self-explanatory.

backup

Perform an rsync backup to $DSTHOST:backup/$HOST.

Usage: backup home DSTHOST or backup full DSTHOST

bringwindow

Use vmenu to choose from a list of existent X clients to switch to, or bring to the current workspace.

Usage: bringwindow -a to switch to window, or bringwindow -R to bring the window to your current workspace.

drawer

Manages 'drawer terminal' type programs, like a generalized version of guake or so.

Usage: drawer NAME [SIDE WIDTH HEIGHT COMMAND]

  • NAME is a symbolic name for the drawer. It should be a valid POSIX filename.
  • SIDE is the side of the screen to attach the drawer to. Valid values are left, right, top, and bottom.
  • WIDTH and HEIGHT may be either a size in pixels or a percentage of screen size (84%) specifying the dimensions of the window to create.
  • COMMAND is the command with arguments which will actually create the window.

When run, drawer looks in /tmp/drawers.wids/ for a file called NAME containing an X window id. If found, that window's hidden EWMH hint will be toggled. If the file is not found, COMMAND is executed and the resulting window is positioned according SIDE, WIDTH, and HEIGHT and then focused, and the windows X window id is written to /tmp/drawers.wids/$NAME to allow future toggling.

Drawer requires xprop (probably included in your distro's X11 utils package) and xdotool and wew from wmutils/opt.

journal

Launch gvim on a new file under ~/writing/journal with a name generated by the logdate command.

logdate

Output the current time in YYYYMMDD:HHMM.SS (epoch+UNIXTIME) format.

mknote

Read and append a (editably, if interactive) timestamped line to ~/writing/notes.txt.

noteloop

Just runs mknote in a loop, for e.g. keeping a drawer term to collect and show notes.

obsess

Poor-person's version of watch(1). Repeatedly run a command at a specified frequency, clearing the terminal before each execution.

Usage: obsess DELAY COMMAND...

DELAY is the (floating point) number of seconds between invokations of COMMAND. Try obsess 1 date if it's not clear what this script is for.

rclip

DEPRECATED!

Remote clipboard with logging; replaces Pocket, Pinboard, etc with a very small shell script.

Requires ssh (public key auth highly recommended) and xclip to use clipboard manipulation funcionality.

To use, put in PATH on each host you wish to use it on, and also on a net-accessible server, and update the RSH_CMD variable at the head of the script with the ssh command necessary to log into your server, and touch rclip.clip; touch rclip.log. Then:

  • rclip copy [-a] [METADATA] SELECTION: store the contents of SELECTION to your rclip server.
  • rclip paste SELECTION: read the contents of the rclip clip from your server into SELECTION.
  • rclip put [-a] [METADATA]: read from STDIN and store to the rclip clip on your server.
  • rclip get: print the contents of the rclip clip from your server to STDOUT.
  • rclip tail: follow the rclip log, printing each new clip as it's stored.
  • rclip io: STDOUT prints the output of rclip tail, while each line passed to STDIN is posted as a new clip. Lines are read using the read command with no -r argument, so newlines can be escaped using \.

SELECTION is one of the standard X selection names as understood by xclip: primary, secondary, clipboard. Defaults to clipboard.

METADATA is a string that will be inserted into the item header alongside the datestamp when logging. This can be any number of shell parameters, or a single string.

The -a argument to copy and put causes the data to be appended to the current clip, rather than replacing it (and likewise, appended to the current log entry, rather than opening a new one).

rclip also accepts a -c CLIPNAME argument before the operation, e.g. rclip -c foo put .... If supplied, this specifies an alternate clip to use. This can be any filename-safe string and is inserted into the name of the clip and log files, so that instead of reading/writing from e.g. rclip.clip, issuing rclip -c foo put will write to rclip.foo.log. Note the potential security implication here: it's theoretically possible to use this option to cause rclip to write to any file your user can access.

rclip uses many short-lived ssh connections and is much better and significantly faster when used with public-key authentication and SSH Connection Sharing.

sesh (Session Helper)

sesh is a simple script to help restore your session state when using a dynamic window manager. For me the big use case is that I use individual browser windows managed by my window manager rather than browser tabs, so when I have to reboot, log in/out, etc, it's a pain moving the windows back to the desks I had them on.

To use:

  • Before logout, shutdown, etc, invoke sesh with all your windows still open. A list of window names and associated desktop numbers will be saved at ~/.cache/sesh.state.
  • After login and reloading apps, browser sessions, etc, invoke sesh load, and it will move all you windows to the desktops specified in ~/.cache/sesh.state.
  • There is a function munge at the top of the script that is used to process window titles to eliminate volatile elements like GMail's message count or Slack's unread indicator. This is necessary since windows must be identified by title substring.

scut (Super | Simple | Suckless) cut.

An improved version of the POSIX cut command.

Usage: scut FIELDSPEC,[FIELDSPEC[,...]] [-dDELIMITER] [-jJOINER]

FIELDSPEC is either an integer, or a range of the form n-m. If it is an integer, that field (zero-based) from each line of STDIN will be printed to STDOUT. If it is a range, fields n (inclusive) through m (exclusive) will be printed. n also allows the special field separator ^ which causes all fields from the beginning of the line until field m to be printed, verbatim, without replacing field separators with field joiners. Similarly, m supports the special value $ which prints from field n through the end of the line, verbatim.

DELIMITER is any regex supported by the Pyton 2 regex module and is used to split input lines into fields. JOINER is the string used to join fields together in the output. Escape sequences such as '\t' will be processed into their represented characters.

Unlike the cut command, fields specified multiple times will be printed multiple times.

WARNING: contains python. A Golang version is in the works.

shistory

Use vmenu to select a line from STDIN (assumed to be output from the history command) and print it to STDOUT. Intended to be used from your shell's readline to place a selection from your history on the command line for editing.

tman

DEPRECATED

Run man with the given arguments, and display the outputs in a new terminal window.

vmenu

Run dmenu in vertical format, with multi-token matching, and the given arguments. Falls back to slmenu if not running in an X session.

www-browser

Invoke $BROWSER with the given arguments.

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Shell utilities toolkit

License:MIT License


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