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Full Discussion: passwd
Top Forums UNIX for Dummies Questions & Answers passwd Post 302571338 by h@foorsa.biz on Monday 7th of November 2011 06:24:27 AM
Old 11-07-2011
Quote:
Originally Posted by kkalyan
last utemp
wtmp begins Mon Jun 25 14:57

What does it mean?
can you please suggest me any unix books iam new to unix

Thanks in advance
Nothing it just says that wtmp file begins at Mon Jun 25 14:57. the usually located in the following path /var/adm/wtmp
Please note that the output came from issuing the command last utemp this doesn't mean that last has read the utemp file you need to specify the full path you can either read it by the command cat or any other text viewer if it's not a binary file.


For books have a look here
But I strongly recommend UNIX And Linux System Administration Handbook 3rd and 4th Editions
 

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GETPWNAM(3)						     Linux Programmer's Manual						       GETPWNAM(3)

NAME
getpwnam, getpwuid - get password file entry SYNOPSIS
#include <pwd.h> #include <sys/types.h> struct passwd *getpwnam(const char *name); struct passwd *getpwuid(uid_t uid); DESCRIPTION
The getpwnam() function returns a pointer to a structure containing the broken out fields of a line from /etc/passwd for the entry that matches the user name name. The getpwuid() function returns a pointer to a structure containing the broken out fields of a line from /etc/passwd for the entry that matches the user uid uid. The passwd structure is defined in <pwd.h> as follows: struct passwd { char *pw_name; /* user name */ char *pw_passwd; /* user password */ uid_t pw_uid; /* user id */ gid_t pw_gid; /* group id */ char *pw_gecos; /* real name */ char *pw_dir; /* home directory */ char *pw_shell; /* shell program */ }; RETURN VALUE
The getpwnam() and getpwuid() functions return a pointer to the passwd structure, or NULL if the matching entry is not found or an error occurs. ERRORS
ENOMEM Insufficient memory to allocate passwd structure. FILES
/etc/passwd password database file CONFORMING TO
SVID 3, POSIX, BSD 4.3 SEE ALSO
fgetpwent(3), getgrnam(3), getpwent(3), setpwent(3), endpwent(3), getpw(3), putpwent(3), passwd(5) GNU
1996-05-27 GETPWNAM(3)
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