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Pseudo-template noob hack that may apply for several situations

Posted 04-12-2012 at 04:10 PM by the dsc (random notes from a newbie)
Updated 04-12-2012 at 04:14 PM by the dsc

Tags bash, gimp, mypaint, script, template

There's a painting software, "mypaint", which is very nice, but it does not support templates, at least not yet.

I've created a template (just a "blank" file with the correct resolution and whatnot) on GIMP, saved it as "ora", but instead of opening this file manually every time, and remembering to save it with a new name in order to not overwrite the template, I came up with a script that will create a new name automatically, with no risk of overwriting...

the dsc

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Posted in Uncategorized

Views 825 Comments 2 the dsc is offline

Handling all file names safely in Bash

Posted 02-11-2012 at 12:09 PM by Nominal Animal
Updated 04-16-2012 at 02:41 AM by Nominal Animal (Fuller fixes.)

Tags bash, filename, nul

In Linux, each file or directory name (or more generally, pathname component) is just a string of bytes. It always ends with the C end-of-string mark, ASCII NUL: a zero. Value 47, ASCII /, is also reserved for use as a separator between pathnames.

Bash can read ASCII NUL separated data using read -d "" variable. It will, however, remove leading and trailing characters that match IFS, and return false (nonzero status) if the input does not have a final NUL. This applies to...

Nominal Animal

Senior Member

Posted in Uncategorized

Views 310 Comments 0 Nominal Animal is offline

Bash scripts and keyboard input

Posted 01-29-2012 at 02:43 PM by Nominal Animal

Tags bash, keyboard, keyboard input

You can use Bash to read individual keypresses. Here is an example:

Code:

#!/bin/bash

# Reset terminal to current state when we exit.
trap "stty $(stty -g)" EXIT

# Disable echo and special characters, set input timeout to 0.2 seconds.
stty -echo -icanon time 2 || exit $?

# String containing all keypresses.
KEYS=""

# Set field separator to BEL (should not occur in keypresses)
IFS=$'\a'

...

Nominal Animal

Senior Member

Posted in Uncategorized

Views 387 Comments 0 Nominal Animal is offline

Slacking with Slackware

Posted 12-01-2011 at 08:11 AM by ofaring (Debian, This That and the Other)
Updated 12-01-2011 at 08:14 AM by ofaring

Tags bash, nano, networking, package management, slackware

Ok. I've used Debian for quite some time -- although I started with Slackware years back -- and it's been awhile since I attempted anything without a package manager!

I grabbed a copy of Slackware Disc 1 and installed a basic, console-only Slackware.

First snag...WiFi. I live in a busy neighbourhood full of students eager to grab "free" internet off a WEP-encrypted wireless router, so WPA is a must. Well, /etc/rc.d/rc.inet1.conf didn't seem very happy to play...

ofaring

Member

Posted in Examples, Slackware

Views 323 Comments 0 ofaring is offline

Comment a block in shell

Posted 08-31-2011 at 12:22 AM by hi2arun

Tags bash, script

We all know, to comment out a line in shell script, '#' token is inserted in the line that needs to be made dead.
Eg:

Code:

# This is a dead line
echo "This line is live"

However, '#' token can be pesky if a block of lines need to be commented out.
Say, to comment out the following block using '#'

Code:

# comment starts here
# All these lines
# are blocked
# using '#' token
# ...
# ...
# ...

...

hi2arun

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Posted in Uncategorized

Views 374 Comments 0 hi2arun is offline

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