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Operating Systems HP-UX hpux startup process, AUTO file? Post 31629 by Perderabo on Monday 11th of November 2002 08:40:37 AM
Old 11-11-2002
Yes, absolutely. It is vital for a sys admin to understand the boot process.

Any command run by root has some potental for danger. Something like: "df -k > /etc/passwd" could be a real disaster. But vgdisplay and lifls should be as safe as, say, df. Both just try to dispaly some information. Neither wants to change anything. It's lifcp that is more dangerous. It is a file copy program.

I don't know about linux, so I can't compare it to HP-UX.
 

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

NAME
vipw - Edits the /etc/passwd file SYNOPSIS
/usr/sbin/vipw DESCRIPTION
You use the vipw command to edit the /etc/passwd file with the editor defined in the EDITOR environment variable. If the variable is not set, the default editor is vi. The vipw command performs basic consistency checks on the edited file. If a hashed indexed passwd existed previously, the vipw command uses the mkpasswd command to create recreate it. The command must not be used on systems that use extended security attributes since it cannot set or change them. You must be root to run this command. Only root and security administrators should have execute access to this command. Since the vipw command cannot effectively change all the attributes of users, it should not be used in a secure environment. The vipw command accesses the following files, and requires the listed permissions: ------------------------------ Permissions File ------------------------------ rw /etc/passwd rw /etc/passwd.pag rw /etc/passwd.dir rw /etc/ptmp rw /etc/ptmp.pag rw /etc/ptmp.dir ------------------------------ EXAMPLE
To edit the /etc/passwd file, type the following command and add the required line entry: vipw FILES
Specifies the command path RELATED INFORMATION
Commands: passwd(1), passwd(4), adduser(8), mkpasswd(8) delim off vipw(8)
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