# ar > Create, modify, and extract from Unix archives. Typically used for static libraries (`.a`) and Debian packages (`.deb`). > See also: `tar`. > More information: . - E[x]tract all members from an archive: `ar x {{path/to/file.a}}` - Lis[t] contents in a specific archive: `ar t {{path/to/file.ar}}` - [r]eplace or add specific files to an archive: `ar r {{path/to/file.deb}} {{path/to/debian-binary path/to/control.tar.gz path/to/data.tar.xz ...}}` - In[s]ert an object file index (equivalent to using `ranlib`): `ar s {{path/to/file.a}}` - Create an archive with specific files and an accompanying object file index: `ar rs {{path/to/file.a}} {{path/to/file1.o path/to/file2.o ...}}`