halp
halp is a command line utility that lets you display messages in morse code on your capslock LED, keyboard backlight (if you have it) or using your screen's brightness!
Note:
halp will only work if you're running Linux. The original purpose of developing this was to learn more about the concept of 'everyhting in linux is a file' and learn more about how permissions in linux work. The idea originated after watching this video.
Installation
Use the executable:
curl -sSL https://github.com/MadhavJivrajani/halp/releases/download/<tag>/halp --output halp
chmod +x halp
mv halp /usr/bin # to make the executable available system wide
Installation can also done using the go get command which will take care of installation of any libraries and dependencies nescessary. This will also install the halp executable which can be used anywhere in the termnial provided $GOPATH/bin is in your PATH.
go get -u github.com/MadhavJivrajani/halp
Or you can clone this repository and work directly with the halp executable!
git clone https://github.com/MadhavJivrajani/halp.git
cd halp
go build -o halp main.go
mv halp /usr/bin # to make the executable available system wide
Usage:
A verryyy normal and usual application built to help you send SoS messages.
The tool will by default switch off the LED before displaying the morse code
message and will restore it back to this initial state when the message finishes displaying
Syntax:
halp -m <message>
Usage:
halp [flags]
halp [command]
Available Commands:
help Help about any command
reset Reset the resource state to 'value'
Flags:
--config string config file (default is $HOME/.halp.yaml)
-h, --help help for halp
-k, --keyboard use keyboard backlight
-m, --message string message to diplay in morse code
-p, --path string /path/to/capslockLED (default "/sys/class/leds/input3::capslock")
-s, --screen use screen backlight
Use "halp [command] --help" for more information about a command.
Commands:
reset
It will default to a capslock LED path, you can try using the -s and the -k flags,
to reset to value for screen and keyborad resources respectively
Syntax:
halp reset [--keyboard][--screen][--path][--value]
Usage:
halp reset [flags]
Flags:
-h, --help help for reset
-k, --keyboard reset keyboard backlight
-p, --path string /path/to/resource (default "/sys/class/leds/input3::capslock")
-s, --screen reset screen backlight
-v, --value int reset the resource to this value