Не запускается скрипт, просто ничего не происходит на UBUNTU

#!/usr/bin/env sh

# Prevent sudo/root to run the script
if [ "$(\id -u)" -eq 0 ]; then
    # overkill privileges message
    if command -v zenity >/dev/null; then
        zenity --warning --text="Don't run software from somewhere other than the \
repositories via sudo or as root user." --width=450 \
        --title="Unnecessary privileges" >/dev/null 2>&1
        exit
    elif command -v kdialog >/dev/null; then
        kdialog --sorry "Don't run software from somewhere other than the \
repositories via sudo or as root user." --title="Unnecessary privileges" >/dev/null 2>&1
        exit
    else
        printf "\n  Don't run software from somewhere other than the \
repositories via sudo or as root user.\n\n"
        exit
    fi
fi

# Only one script instance
if [ "${FLOCKER}" != "$0" ]; then
    exec env FLOCKER="$0" flock -n "$0" "$0" "$@" 2>/dev/null
fi

# Move to the script directory
cd "$(dirname "$(readlink -f "$0")")"/game || exit

# Backup original steamclient.so & copy Goldberg steamclient.so
mkdir -p ~/.steam/sdk64
mv ~/.steam/sdk64/steamclient.so ~/.steam/sdk64/steamclient.so.orig
cp lib/steamclient.so ~/.steam/sdk64/steamclient.so

# Run the game
export SteamAppPath=.
export SteamAppId=1142710
export SteamGameId=1142710
faketime '2020-12-31 00:00:00' bin/TotalWarhammer3

# Restore original steamclient.so & delete Goldberg steamclient.so
rm -f ~/.steam/sdk64/steamclient.so
mv ~/.steam/sdk64/steamclient.so.orig ~/.steam/sdk64/steamclient.so