# If you'd like to omit non-matching lines from the result; add ';d' to the end of the expression.
sed -E 's/\bhttps?:\\/\\/.*\\///gm;t' <<< "https://example2.com/file/casdqwe/test1.rar
https://example2.com/file/casdqwe/test2.rar
https://example5.com/file/casdqwe/test3.rar
http://example2.com/file/casdqwe/test4.rar
http://www.example2.com/file/casdqwe/test5.rar
http://www.example5.com/file/casdqwe/test6.rar"
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