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Full Discussion: Check existence of a login
Top Forums UNIX for Advanced & Expert Users Check existence of a login Post 302172069 by fpmurphy on Sunday 2nd of March 2008 08:51:45 AM
Old 03-02-2008
When a user logs in using login(1) login sets the $HOME environmental variable. The shell uses that environmental variable to find a users home directory.

AFAIK, there is no single API which will check whether a login is known to all authentication methods (local, NIS, PAM, etc.) used on a particular system.
 

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ADDPART(8)                                                     System Administration                                                    ADDPART(8)

NAME
addpart - tell the kernel about the existence of a partition SYNOPSIS
addpart device partition start length DESCRIPTION
addpart tells the Linux kernel about the existence of the specified partition. The command is a simple wrapper around the "add partition" ioctl. This command doesn't manipulate partitions on a block device. PARAMETERS
device The disk device. partition The partition number. start The beginning of the partition (in 512-byte sectors). length The length of the partition (in 512-byte sectors). SEE ALSO
delpart(8), fdisk(8), parted(8), partprobe(8), partx(8) AVAILABILITY
The addpart command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/. util-linux January 2015 ADDPART(8)
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