Best way to check for system user and password in C Post: 302383433

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LEARN ABOUT OSF1

grpck

pwck(8) 						      System Manager's Manual							   pwck(8)

NAME

       pwck, grpck - Checks the password and group files for inconsistencies

SYNOPSIS

       pwck [-admNs] [file]

       grpck [-mNp] [file]

FLAGS

       Causes  both pwck and grpck to additionally check the NIS database entries using the same consistency tests.  Users that are defined in the
       local password or group file without the "+" at the start of the name field are flagged as duplicate entries.

   pwck
       Inhibits the running of the /tcb/bin/authck -p command on a system running Enhanced Security.  Prevents pwck from checking for the presence
       of  the	user's	login  directory.   Directs pwck to check for mixed case usernames.  Causes pwck to check for the presence of the optional
       shell field for each entry.

   grck
       If there are no members, causes grpck to display a message indicating the listed group has no members.  Directs grpck to not  check  for  a
       users' existence in the password database (local or NIS).

DESCRIPTION

       The pwck command scans the /etc/passwd file, or the named file, and writes to standard out any inconsistencies.	The scan checks the number
       of fields, login name, user ID, group ID, and existence of a login directory and optional program name.

       The grpck command scans the /etc/group file, or the named file, and writes to standard out any inconsistencies.	The scan checks the number
       of fields, group name, group ID, and whether all login names appear in the password file.

EXAMPLES

       To verify the password information in the /etc/passwd file for consistency, enter: pwck

       To verify the password information in the /etc/passwd file and the NIS database for consistency without checking each users login directory
       validity, enter: pwck -Nd

       To verify the group information in the /etc/group file and the NIS database for consistency, enter: grpck -N

FILES

       Specifies the command path Specifies the command path Contains user information Contains group information

RELATED INFORMATION

       Commands:  adduser(8), authck(8), groups(1), passwd(1), vipw(8)

       Files:  passwd(4), group(4), ypfiles(4) delim off

																	   pwck(8)