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Full Discussion: Query about opening the file
Top Forums Shell Programming and Scripting Query about opening the file Post 302815001 by bakunin on Thursday 30th of May 2013 07:19:00 PM
Old 05-30-2013
Depending on what privileges your user account has it might be that you can't change the file to "writable", because you have not the necessary rights to do so. If this is the case, you can't neither do it inside or outside "vi" or "view".

What Don Cragun showed you was based on the assumption that you do indeed have the permissions necessary to change the file to "writable". (My apologies if i have pointed out the obvious, but long years spent with users made me expect always the most inspired but least logical, so to say.)

I hope this helps.
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GSHADOW(5)                                                 File Formats and Conversions                                                 GSHADOW(5)

NAME
gshadow - shadowed group file DESCRIPTION
/etc/gshadow contains the shadowed information for group accounts. This file must not be readable by regular users if password security is to be maintained. Each line of this file contains the following colon-separated fields: group name It must be a valid group name, which exist on the system. encrypted password Refer to crypt(3) for details on how this string is interpreted. If the password field contains some string that is not a valid result of crypt(3), for instance ! or *, users will not be able to use a unix password to access the group (but group members do not need the password). The password is used when a user who is not a member of the group wants to gain the permissions of this group (see newgrp(1)). This field may be empty, in which case only the group members can gain the group permissions. A password field which starts with an exclamation mark means that the password is locked. The remaining characters on the line represent the password field before the password was locked. This password supersedes any password specified in /etc/group. administrators It must be a comma-separated list of user names. Administrators can change the password or the members of the group. Administrators also have the same permissions as the members (see below). members It must be a comma-separated list of user names. Members can access the group without being prompted for a password. You should use the same list of users as in /etc/group. FILES
/etc/group Group account information. /etc/gshadow Secure group account information. SEE ALSO
gpasswd(5), group(5), grpck(8), grpconv(8), newgrp(1). shadow-utils 4.5 01/25/2018 GSHADOW(5)
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