tldr/pages/common/ar.md

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# ar
> Create, modify, and extract from archives (.a .so .o).
- Extract all members from an archive:
`ar -x {{libfoo.a}}`
- List the members of an archive:
`ar -t {{libfoo.a}}`
- Replace or add files to an archive:
`ar -r {{libfoo.a}} {{foo.o}} {{bar.o}} {{baz.o}}`
- Insert an object file index (equivalent to using `ranlib`):
`ar -s {{libfoo.a}}`
- Create an archive with files and an accompanying object file index:
`ar -rs {{libfoo.a}} {{foo.o}} {{bar.o}} {{baz.o}}`