Edit etc group manually

To verify the group and corresponding gshadow file, use grpck. See the manpages for the details of the actions they perform. Hand-editting of /etc/passwd is best done (if at all) with vipw and vipw -s for the shadow file. For the /etc/group and /etc/gshadow use vigr and vigr -s, respectively. Using these tools provide not only a lock to prevent multiple, concurrent user updates but also . Apart from not making mistakes while doing so, you have to be aware that on systems where LDAP is setup useradd etc. can also update the data there.. Essentially if only /etc/group, and only a limited amount of lines in there, are effected you might as well edit the file.. If you have /etc under revision control (mercurial, git) it is easy to roll-back www.doorway.rus: 1. My feeling is that this must be done manually. I could edit: /etc/group and add the LDAP group to the list. Would that be ideal? [server]# id apache uid= (apache) gid= (apache) groups= (apache) context=user_u:system_r:unconfined_t:s0 [server]# id www.doorway.ru uid= (www.doorway.ru) gid= (ABC_Corporate_US) groups= (ABC_Corporate_US.

Creating a user by hand. To create a new account manually, follow these steps: Edit /etc/passwd with vipw and add a new line for the new account. Be careful with the syntax. Do not edit directly with an editor! vipw locks the file, so that other commands won't try to update it at the same time. On Scientific Linux (like CentOs) When configuring a new server I have manually edited the file /etc/shadow so as to copy the password. Now I can only log in as user root and I can not use any other user. At the boot the server does not show the login message. I put the previous shadow file, and passwd and group gshadow unsuccessfully. The group file lists all the groups and who is in each. You can use the vipw command to edit the /etc/passwd file safely, and the vigr command to edit the /etc/group file safely. Use vipw -s to edit the /etc/shadow file safely. ("Safely" in this context means someone else won't be able to modify the file you're editing at the moment.

$ less /etc/group OR use the more command: $ more /etc/group OR use the cat command: $ more /etc/group. Task: Find Out the Groups a User Is In. Type the following groups command: $ groups {username} $ groups $ groups vivek Sample outputs: vivek: vivek adm dialout cdrom plugdev lpadmin netdev admin sambashare libvirtd Task: Print user / group Identity. a) Check current group membership as a user. Let's call username "myuser": groups b) Add this user to some groups in /etc/group. For example: echo "ZZZ:xmyuser" /etc/group As a good practice, always ensure that /etc/gshadow is in sync after modifying /etc/group: grpck c) Recheck user again (without logging out): groups newgrp ZZZ. Manually Editing User inside /etc/passwd File. Generally, a normal user has read-only permission for passwd file but sometimes it is also possible that a user has read/write permission, in that scenario we can add our own user inside /etc/passwd file with the help of above theory. user2:*,:/home/user2:/bin/bash.