Commonly used · Permissions and links

chmod: Modify permissions

Syntax

chmod [-R] Permissions Path…

Options

-R

Recursive modification

Examples

chmod 755 deploy.sh

Usage and sandbox support

Supports three-digit octal and single-group symbolic expressions, such as u+x, go-r. r=4, w=2, x=1.

Hands-on exercises

• Make the deployment script executableEveryday
• Protect private configurationEveryday
• Authorize the publish scriptAdvanced
• Remove write permissions for other users from the entire directoryMaster

Full documentation ↗

Related commands

• chownModify owner
• umaskSet new file permission mask
• lnCreate symbolic link
• readlinkView symbolic link targets
• sudoExecute command as administrator
• groupsQuery user group
• chgrpModify the group to which the file belongs
• getfaclView extended access control
• setfaclSet up extended access control
• lsattrQuery file attribute flags
• chattrModify file attribute flags
• suSwitch user session
• passwdChange account password
• useraddcreate Account
• usermodModify account properties
• userdelDelete account
• groupaddCreate user group
• getentQuery system account database