SHELL

bash if greater than

if (( a > b )); then
    ...
fi
#Use above example or below one:
if [ "$a" -gt "$b" ]; then
    ...
fi

bash if larger than

# In bash, you should do your check in arithmetic context:

if (( a > b )); then
    ...
fi

# For POSIX shells that don't support (()), you can use -lt and -gt.

if [ "$a" -gt "$b" ]; then
    ...
fi