tldr/pages/common/ar.md

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