effect(category22-scripting.html) - phpMan

eaccess (3)          - check effective user's permissions for a file
euidaccess (3)       - check effective user's permissions for a file
getegid (3p)         - get the effective group ID
geteuid (3p)         - get the effective user ID
getresgid (2)        - get real, effective and saved user/group IDs
getresgid32 (2)      - get real, effective and saved user/group IDs
getresuid (2)        - get real, effective and saved user/group IDs
getresuid32 (2)      - get real, effective and saved user/group IDs
id (1)               - print real and effective user and group IDs
IO::Socket::SSL::PublicSuffix (3pm) - provide access to Mozilla's list of eff...
setegid (2)          - set effective user or group ID
setegid (3p)         - set the effective group ID
seteuid (2)          - set effective user or group ID
seteuid (3p)         - set effective user ID
setregid (2)         - set real and/or effective user or group ID
setregid (3p)        - set real and effective group IDs
setregid32 (2)       - set real and/or effective user or group ID
setresgid (2)        - set real, effective and saved user or group ID
setresgid32 (2)      - set real, effective and saved user or group ID
setresuid (2)        - set real, effective and saved user or group ID
setresuid32 (2)      - set real, effective and saved user or group ID
setreuid (2)         - set real and/or effective user or group ID
setreuid (3p)        - set real and effective user IDs
setreuid32 (2)       - set real and/or effective user or group ID
whoami (1)           - print effective userid