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"

#!/bin/bash

#Takes command line arguments and pulls the header files.

#Good for checking if the function you want is in the header or not.

#cppToStdout.sh "time.h"
while [ "$1" != "" ]; do
	echo "#include<$1>" | g++ -x c++ -E -
	shift
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

#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

#

# Austin Leath

# checks for /Desktop symlink. Creates the symlink if it doesnt already exist

#


#Fetch the target user if desired, otherwise use the currently logged in user.
if [ "$4" != "" ]; then
    TARGET_USER=$4
else
    TARGET_USER=$3
fi

if [ "$5" != "" ]; then
    DIRECTORY_NAME=$5
else
    TARGET_USER="$3 Desktop"
fi


# Functions

CHECK_SYMLINK() {
    if test -f "/Desktop"; then
        echo "/Desktop exists"
    else
        echo "/Desktop does not exist"
    fi
}


CHECK_SYNTHETIC_CONF() {
    if test -f "/etc/synthetic.conf"; then
        echo "/etc/synthetic.conf exists"
    else
        echo "/etc/synthetic.conf does not exist"
    fi
}

CREATE_SYMLINK() {
    if [[ $(CHECK_SYNTHETIC_CONF) != "/etc/synthetic.conf exists" ]]; then
        echo "/etc/synthetic.conf does not exist. creating.."
        touch /etc/synthetic.conf
        chown -R root:wheel /etc/synthetic.conf
    fi

    if grep -q "$DIRECTORY_NAME" /etc/synthetic.conf; then
        echo "$DIRECTORY_NAME already exists"
        exit 1
    else
        echo "$DIRECTORY_NAME\t/Users/$TARGET_USER/Desktop" >> /etc/synthetic.conf
    fi
    
    echo "/Desktop symbolic link created"
}

if [[ $(CHECK_SYMLINK) != "/Desktop exists" ]]; then
    CREATE_SYMLINK
fi

exit 0

#!/bin/bash


# Set the directory to search
DIRECTORY="src"


# Set the output file
OUTPUT_FILE="testids.txt"


# Clear the output file

> "$OUTPUT_FILE"


# Find all .tsx files in the specified directory and its subdirectories
find "$DIRECTORY" -type f -name "*.tsx" | while read -r FILE
do

  # Search for instances of 'data-testid="testid"' and append them to the output file
  grep -o 'data-testid="[^"]*"' "$FILE" >> "$OUTPUT_FILE"

  # Search for instances of "'data-testid': 'testid'" and append them to the output file
  grep -o "'data-testid': '[^']*'" "$FILE" >> "$OUTPUT_FILE"
done

echo "Search complete. Test IDs written to $OUTPUT_FILE."