Marco Education-August 1 small homework after class (Linux Create Users, batch create users)

1. Create TestUser UID 1234, main group: Bin, Auxiliary Group: ROOT,FTP,SHELL:/BIN/CSH Home:/testdir/testuser

[Email protected] ~]# useradd testuser-u 1234-g bin-g root,ftp-s/bin/csh-d/testdir/testuser[[email protected] ~]# grep testuser/etc/passwdtestuser:x:1234:1::/testdir/testuser:/bin/csh

2, modify TestUser uid:4321, main group: root, Auxiliary Group: Nobody,loginname:test,home:/home/test Home Data migration

[Email protected] ~]# usermod-u 4321-g root-g nobody,loginname-c "test"-d/home/test-m Testuser[[email protected] ~ ]# cat/etc/passwd |grep testusertestuser:x:4321:0:test:/home/test:/bin/csh

3, Batch create account: User1...user10

Uid:3000-3009,shell:/bin/csh,home:/testdir/username

Passwd:usernamepass

Note Home directory-related configuration, so that users log on normally

Scenario One: Script mode

[[email protected] ~]# Cat add.shfor username in user{1..10}dofor uid in 300{0..9}doif [-n $username] then Useradd $username-U $uid-S/bin/csh-c "Home"-d/testdir/$username Echo Echo $username "Pass" |    passwd--stdin $username Echo echo "User $username s password is changed!" else echo "The username is null!" Fidonedone

Scenario Two: Text templates

[Email protected] ~]# VI userlist #账户文件

USER1:X:3000:3000:HOME:/TESTDIR/USER1:/BIN/CSHUSER2:X:3001:3001:HOME:/TESTDIR/USER2:/BIN/CSHUSER3:X:3002:3002: home:/testdir/user3:/bin/cshuser4:x:3003:3003:home:/testdir/user4:/bin/cshuser5:x:3004:3004:home:/testdir/ user5:/bin/cshuser6:x:3005:3005:home:/testdir/user6:/bin/cshuser7:x:3006:3006:home:/testdir/user7:/bin/ Cshuser8:x:3007:3007:home:/testdir/user8:/bin/cshuser9:x:3008:3008:home:/testdir/user9:/bin/cshuser10:x : 3009:3009:home:/testdir/user10:/bin/csh

Application files

[Email protected] ~]# newusers userlist

[Email protected] ~]# VI passlist #密码文件

User1:user1passuser2:user2passuser3:user3passuser4:user4passuser5:user5passuser6:user1passuser7:user1passuser8 : User1passuser9:user1passuser10:user1pass

[email protected] ~]# Cat P.txt | chpasswd

Copy user-created initialization files to the new user home directory (follow the bad copy to all user home directories)

[[email protected] ~]# for Userdir in user{1..10};d o cp-r/etc/skel/. [^.] * $userdir;d O

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Marco Education-August 1 small homework after class (Linux Create Users, batch create users)