Lubuntu 17.10 - MacBook Pro 2010 WiFi не находит никаких подключений

Использование gawk

b=300; gawk -v "b=$b" '/^LookupFile/ {line=gensub (/(^LookupFile:.*)[0-9]+/,"\\1",$0); number=gensub(/^LookupFile:([0-9]+)/,"\\1",$0); printf "%s",line; printf "%s",number+b"\n"} !/^LookupFile/ {print}' foo

Пример

$ cat foo
FORM: lookupfile
Version: 1
LookupFile:4

$ b=300; gawk -v "b=$b" '/^LookupFile/ {line=gensub (/(^LookupFile:.*)[0-9]+/,"\\1",$0); number=gensub(/^LookupFile:([0-9]+)/,"\\1",$0); printf "%s",line; printf "%s",number+b"\n"} !/^LookupFile/ {print}' foo
FORM: lookupfile
Version: 1
LookupFile:304