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Feb 22, 2022LeifMessinger
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More Shell Posts

getDependencies.sh

Oct 30, 2020LeifMessinger

0 likes • 2 views

#!/bin/bash
#getDependencies.sh by Leif Messinger
grep -Po '#include\s*"\K.+(?=")' | while read -r line ; do
echo -n " $line"
./getDependencies.sh < $line
done

watchLogins.sh

Sep 30, 2021LeifMessinger

0 likes • 8 views

touch /tmp/login1.txt /tmp/login2.txt
while [ true ]
do
who | gawk '{ print $1 }' > /tmp/login2.txt
comm -13 /tmp/login1.txt /tmp/login2.txt
#Just a bit easier to read
#diff /tmp/login1.txt /tmp/login2.txt
cat /tmp/login2.txt > /tmp/login1.txt
sleep 1
done

Update Prefixed Dependencies

Oct 9, 2023C S

0 likes • 114 views

# Update all npm packages under the scope defined by the PREFIX variable ("foo").
PREFIX="foo"; npm ls | grep "$PREFIX" | awk -F/ '{print $NF}' | sed 's/@.*//' | xargs -I package npm update @"$PREFIX"/package

Bash Basics

Nov 19, 2022CodeCatch

0 likes • 1 view

name="John"
echo ${name}
echo ${name/J/j} #=> "john" (substitution)
echo ${name:0:2} #=> "Jo" (slicing)
echo ${name::2} #=> "Jo" (slicing)
echo ${name::-1} #=> "Joh" (slicing)
echo ${name:(-1)} #=> "n" (slicing from right)
echo ${name:(-2):1} #=> "h" (slicing from right)
echo ${food:-Cake} #=> $food or "Cake"

Untitled

May 20, 2024AustinLeath

0 likes • 12 views

#!/bin/sh
BAT_LOW=15
BAT_CRITICAL=5
if [ "$1" = "--help" ]
then
printf "
Usage:
\tbattery_check.sh warning%% hibernate%%
Description:
\tA script for notifying the user via dunst and logging when
\tthe battery is low and the system is going to hibernate.
\tCan be supplied arguments for the battery low warning and
\thibernation percentage thresholds as the first and second arguments.
\t Default behavior is to warn at 15% and hibernate at 5%."
exit
fi
if [[ -n "$1" && -n "$2" && $1 -gt $2 ]]
then
BAT_LOW=$1
BAT_CRITICAL=$2
fi
acpi -b | awk -F'[,:%]' '{print $2, $3}' | {
read -r status capacity
echo Low threshold: $BAT_LOW, Hibernate threshold: $BAT_CRITICAL
echo Status: $status, Capacity: $capacity
if [ "$status" = Discharging -a "$capacity" -le $BAT_CRITICAL ]; then
echo Battery critical threshold.
dunstify -u critical "Critical battery threshold, hibernating..."
logger "Critical battery threshold, hibernating..."
sleep .5
systemctl hibernate
exit
fi
if [ "$status" = Discharging -a "$capacity" -le $BAT_LOW ]; then
echo Battery low threshold.
dunstify -u critical 'Battery low! System will hibernate at 5%.'
logger 'Battery low! System will hibernate at 5%.'
sleep .5
light -S 15
exit
fi
}

installVulkanUbuntu.sh

Jul 16, 2023LeifMessinger

0 likes • 5 views

#!/bin/bash
sudo apt install build-essential vulkan-tools libvulkan-dev vulkan-validationlayers-dev spirv-tools libglfw3-dev libglm-dev libtinyobjloader-dev
#The rest of this downloads the Vulkan Tutorial project and its dependencies.
#Comment this out to keep going
exit
sudo apt install git cmake cmake-gui
sudo mkdir /usr/lib/stb
pushd /usr/lib/stb
sudo wget https://raw.githubusercontent.com/nothings/stb/master/stb_image.h
popd
cd ~/Documents
git clone https://github.com/Overv/VulkanTutorial.git
cd VulkanTutorial/code
cmake -S . -B build -DCMAKE_INSTALL_PREFIX:PATH="/usr/local" -DSTB_INCLUDEDIR:PATH="/usr/lib/stb"
cd build
make