[R] regex for "[2440810] / www.tinyurl.com/hgaco4fha3"

[Omar André Gonzáles Díaz]

Hi, I need help for cleaning this:

"[2440810] / www.tinyurl.com/hgaco4fha3"

My desired output is:

"[2440810] / tinyurl".

My attemps:

stringa <- "[2440810] / www.tinyurl.com/hgaco4fha3"

b <- sub('^www.', '', stringa) #wanted  to get rid of "www." part. Until
first dot.

b <- sub('[.].*', '', b) #clean from ".com" until the end.

b #returns ""[2440810] / www"

Thank you.

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