Linux使用者和組

使用者

組

有效使用者

實際使用者

有效使用者ID

實際使用者ID

1 -- 使用者操作函數

linux-rwdx:~ # useradd --helpUsage: useradd ...useradd - create a new user  -c comment     Set the GECOS field for the new account --show-defaults Print default values --save-defaults Save modified default values  -D binddn      Use dn "binddn" to bind to the LDAP directory  -d homedir     Home directory for the new user  -e expire      Date on which the new account will be disabled  -f inactive    Days after a password expires until account is disabled  -G group,...   List of supplementary groups  -g gid         Name/number of the users primary group  -k skeldir     Specify an alternative skel directory  -m             Create home directory for the new user  -o             Allow duplicate (non-unique) UID  -P path        Search passwd, shadow and group file in "path"  -p password    Encrypted password as returned by crypt(3)  -u uid         Force the new userid to be the given number  -r, --system   Create a system account  -s shell       Name of the user's login shell --service srv   Add account to nameservice 'srv'      --help     Give this help list      --usage    Give a short usage message  -v, --version  Print program versionValid services for --service are: files, ldap

添加一個使用者：

linux-rwdx:/home # useradd svn -d /home/svn -g svnlinux-rwdx:/home # passwd svnChanging password for svn.New Password: Reenter New Password: Password changed.mkdir /home/svnchown -R svn:svn /home/svn

2 -- 使用者組操作函數

linux-rwdx:~ # groupadd  --helpUsage: groupadd [-D binddn] [-g gid [-o]] [-r] [-P path] [-p password] groupgroupadd - create a new group  -D binddn      Use dn "binddn" to bind to the LDAP directory  -g gid         Force the new groupid to be the given number  -o             Allow duplicate (non-unique) UID  -P path        Search passwd, shadow and group file in "path"  -p password    Encrypted password as returned by crypt(3)  -r, --system   Create a system account --service srv   Add account to nameservice 'srv'      --help     Give this help list      --usage    Give a short usage message  -v, --version  Print program versionValid services for --service are: files, ldap

 

 

 

 

 

 

 

 

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