# If you'd like to omit non-matching lines from the result; add ';d' to the end of the expression.
sed -E 's/^(\d+){1} ((\d+){1}.)/$3 /gm;t' <<< "140002 ЛЮБЕРЦЫ 2 ОКТЯБРЬСКИЙ ПР 123/4-115
636450 636450, Г. ТОГУР, УЛ. БЕЛИНСКОГО Д. 6 КВ 2
423571 423571 НИЖНЕКАМСК 1 ТАТАРСТАН ВАХИТОВА 51-171"
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for SED, please visit: https://www.gnu.org/software/sed/manual/html_node/The-_0022s_0022-Command.html