Question

assuming,

string1 = "/var/usr/local/noob/"

i need to start from the last character to the closest “/” preceiding it.

so i am expecting:

remove_last_block_of_string()

i should get

“/var/usr/local/noob”

if i run remove_last_block_of_string() again,

"/var/usr/local"

running it again,

"/var/usr"

Answer 1

You can use this:

sub(/\/[^\/]*$/, '')

as in,

>> "/var/usr/local/noob".sub(/\/[^\/]*$/, '')
=> "/var/usr/local"
>> _.sub(/\/[^\/]*$/, '')
=> "/var/usr"

but if you’re manipulating file paths, it would be better to use the Pathname library.