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In Linux computer systems passwd is an ASCII file that contains a list of the system's users and the passwords (in an encrypted format) they must use for access. The /etc/passwd file is comprised of lines, each containing a single entry. Each line has the format:
login name:passwd:UID:GID:user name:directory:shell
Where login name is the name of the user on the system. password is The encrypted optional user password. UID is the numerical user ID. GID is the numerical group ID for this user. user name is the optional comment field (often containing a full username), directory is the user's $HOME directory, shell is the program to run at login (typically if this field is empty the computer will use /bin/sh).
Research Passwd
GID is an abbreviation for Group ID
Research GID
 
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The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
©1993 - 2009 The Probert Encyclopaedia
Southampton, United Kingdom
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