tldr/pages/common/chmod.md

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# chmod
> Change the access permissions of a file or directory.
> More information: <https://www.gnu.org/software/coreutils/manual/html_node/chmod-invocation.html>.
- Give the [u]ser who owns a file the right to e[x]ecute it:
`chmod u+x {{file}}`
- Give the [u]ser rights to [r]ead and [w]rite to a file/directory:
`chmod u+rw {{file_or_directory}}`
- Remove e[x]ecutable rights from the [g]roup:
`chmod g-x {{file}}`
- Give [a]ll users rights to [r]ead and e[x]ecute:
`chmod a+rx {{file}}`
- Give [o]thers (not in the file owner's group) the same rights as the [g]roup:
`chmod o=g {{file}}`
- Remove all rights from [o]thers:
`chmod o= {{file}}`
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- Change permissions recursively giving [g]roup and [o]thers the ability to [w]rite:
`chmod -R g+w,o+w {{directory}}`