02-07-2006
You had several errors. You were working only with a lists of uid's. You cannot use uid with the passwd command like that as far as I know. The man page clearly states that it wants a user name, not a uid. "typeset=i" is probably an error, but I really don't know what that is supposed to be doing. You don't say what os you are using, but it looks like SunOS. If so you probably have some system uid's above 60k that should be left alone. It is mostly personal preference, but with a powerful shell like ksh, I don't like using cat to read a file nor awk to select a field. External programs like that do consume some resources. Here it wouldn't matter much, but in some scripts, it can save hours of time.
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LEARN ABOUT DEBIAN
hesiod_getpwuid
HESIOD(3) Library Functions Manual HESIOD(3)
NAME
hesiod_getpwnam, hesiod_getpwuid, hesiod_free_passwd - Hesiod functions for retrieving passwd information
SYNOPSIS
#include <hesiod.h>
struct passwd *hesiod_getpwnam(void *context, const char *name)
struct passwd *hesiod_getpwuid(void *context, uid_t uid)
void hesiod_free_passwd(void *context, struct passwd *pw)
cc file.c -lhesiod
DESCRIPTION
This family of functions allows you to retrieve passwd database information using Hesiod. To perform lookups, you need an initialized Hes-
iod context; see hesiod(3) for details. You may look up passwd information by name or by uid; information is returned in the same format
as by getpwnam or getpwuid. It is the caller's responsibility to call hesiod_free_passwd with the returned passwd entry to free the
resources used by the passwd entry.
Hesiod queries for passwd information are made using the ``passwd'' or ``uid'' Hesiod type, using either the username or the decimal repre-
sentation of the uid as the Hesiod name. The corresponding records should be a colon-separated list of fields giving the username,
encrypted password, uid, gid, GECOS information, home directory, and shell of the user.
RETURN VALUES
On failure, hesiod_getpwnam and hesiod_getpwuid return NULL and set the global variable errno to indicate the error.
ERRORS
These calls may fail for any of the reasons the routine hesiod_resolve may fail.
SEE ALSO
hesiod(3)
30 November 1996 HESIOD(3)