#!/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
}

#!/bin/bash

#Originally made by Isaac Cook https://gist.github.com/icook/5400173

#Modified by Leif Messinger

#upload_key.sh [server_ip [server2_ip [...]]]

#To be run locally on a linux computer

if [ -e ~/.ssh/id_rsa.pub ];
then
    echo "SSH Key already exists on local machine"
else
    echo "Generating SSH key on local machine"
    ssh-keygen -t rsa   #generates id_rsa and id_rsa.pub
    chmod -R 700 ~/.ssh #Sets permissions of ssh folder
    ssh-add     #Adds keys (and passwords?) to ssh_agent. (hopefully doesn't require password)
fi

echo "Loading client public key into memory"
pubKey=$(<~/.ssh/id_rsa.pub)

for server
do
    echo "Adding client public key to $server remote server authorized keys"
    #Idiot Isaac Cook didn't know about ssh-copy-id
    #ssh-copy-id even checks if your key already exists
    #In fairness, I didn't either until researching ssh-add
    ssh-copy-id -i ~/.ssh/id_rsa.pub $server        #In theory, this should prompt for a username

    #ssh $server "mkdir -p ~/.ssh;  #Make the folder if not already made
    #       echo \"$pubKey\" >> ~/.ssh/authorized_keys;     #Append your public key to the server's authorized_keys
    #       chmod 700 ~/.ssh && chmod 600 ~/.ssh/authorized_keys"   #Set the correct permissions of those files

    #echo "Adding server public key to local authorized keys"
    #ssh $server "ssh-copy-id -i ~/.ssh/id_rsa.pub \$SSH_CLIENT" #this might need some awk, as $SSH_CLIENT spits out clientip portnumber

    echo "Displaying server public key"
    ssh $server "cat ~/.ssh/id_rsa.pub"

    #Though, he did give me a good idea
    echo "Displaying keys authorized on $server (you can paste them in your authorized_keys file)"
    ssh $server "cat ~/.ssh/authorized_keys"

    #echo "Appending keys authorized on $server to your local authorized_keys"
    #ssh $server "cat ~/.ssh/authorized_keys" >> ~/.ssh/authorized_keys
done
echo "SSH keys schronized successfully!"

#!/bin/bash

git status

echo "Do you want to add all changed files?"
select yn in "Yes" "No"; do
        case $yn in
                Yes ) break;;
                No ) exit 1;;
        esac
done

git add -u

git status

echo "Does this look right?"
select yn in "Yes" "No"; do
        case $yn in
                Yes ) break;;
                No ) exit 2;;
        esac
done

git commit

echo "Do you want to push?"
select yn in "Yes" "No"; do
        case $yn in
                Yes ) break;;
                No ) exit 2;;
        esac
done

git push

#pinger.sh by Leif Messinger

#./pinger.sh [ADDRESS] to search

#./pinger.sh [ADDRESS] & to search in the background

#https://serverfault.com/a/42382
ping_cancelled=false # Keep track of whether the loop was cancelled, or succeeded
until ping -c1 "$1" >/dev/null 2>&1; do :; done & # The "&" backgrounds it
trap "kill $!; ping_cancelled=true" SIGINT
wait $! # Wait for the loop to exit, one way or another
trap - SIGINT # Remove the trap, now we're done with it
if [ "$ping_cancelled" == true ] #https://stackoverflow.com/a/21210966/10141528
then
	printf "The pinger for $1 just closed bro.\n"
else
	printf "$1 IS UP BROOO\a\n"
fi

#!/bin/bash

#Leif Messinger lsm0147

#credit.sh FILES
cred="Leif Messinger lsm0147"
for bruh; do
	if [[ $bruh =~ \.cpp|\.c|\.java|\.js ]]; then
		comment="//$cred"
	else

		#Basically everything else gets a pound sign comment

		#Pound signs are standard across linux. bash, sed, gawk, python etc

		#Speaking of which, I need to escape it because of that.
		comment="\#$cred"
	fi
	if [ -s $bruh ]; then

		#If the file has a shebang
		if egrep -q '^#!/' $bruh; then
			sed -i "/^\#!\//a$comment" $bruh
		else
			sed -i "1i$comment" $bruh
		fi
	else
		echo "$comment" > $bruh
	fi
done

# Three ways of checking if a file exists in a shell script

FILE=/etc/resolv.conf

if test -f "$FILE"; then
    echo "$FILE exists."
fi

if [ -f "$FILE" ]; then
    echo "$FILE exists."
fi

if [[ -f "$FILE" ]]; then
    echo "$FILE exists."
fi