GETGRNAM(3) Linux Programmer's Manual GETGRNAM(3)NAME
getgrnam, getgrgid - get group file entry
SYNOPSIS
#include <grp.h>
#include <sys/types.h>
struct group *getgrnam(const char *name);
struct group *getgrgid(gid_t gid);
DESCRIPTION
The getgrnam() function returns a pointer to a structure containing the group information from /etc/group for the entry that matches the
group name name.
The getgrgid() function returns a pointer to a structure containing the group information from /etc/group for the entry that matches the
group gid gid.
The group structure is defined in <grp.h> as follows:
struct group {
char *gr_name; /* group name */
char *gr_passwd; /* group password */
gid_t gr_gid; /* group id */
char **gr_mem; /* group members */
};
RETURN VALUE
The getgrnam() and getgrgid() functions return the group information structure, or NULL if the matching entry is not found or an error
occurs.
ERRORS
ENOMEM Insufficient memory to allocate group information structure.
FILES
/etc/group
Group database file
CONFORMING TO
SVID 3, POSIX, BSD 4.3
SEE ALSO fgetgrent(3), getgrent(3), setgrent(3), endgrent(3)GNU 1993-04-04 GETGRNAM(3)
Check Out this Related Man Page
GETGRENT(3) Linux Programmer's Manual GETGRENT(3)NAME
getgrent, setgrent, endgrent - get group file entry
SYNOPSIS
#include <grp.h>
#include <sys/types.h>
struct group *getgrent(void);
void setgrent(void);
void endgrent(void);
DESCRIPTION
The getgrent() function returns a pointer to a structure containing the group information from /etc/group. The first time it is called it
returns the first entry; thereafter, it returns successive entries.
The setgrent() function rewinds the file pointer to the beginning of the /etc/group file.
The endgrent() function closes the /etc/group file.
The group structure is defined in <grp.h> as follows:
struct group {
char *gr_name; /* group name */
char *gr_passwd; /* group password */
gid_t gr_gid; /* group id */
char **gr_mem; /* group members */
};
RETURN VALUE
The getgrent() function returns the group information structure, or NULL if there are no more entries or an error occurs.
ERRORS
ENOMEM Insufficient memory to allocate group information structure.
FILES
/etc/group
group database file
CONFORMING TO
SVID 3, BSD 4.3
SEE ALSO fgetgrent(3), getgrnam(3), getgrgid(3)GNU 1993-04-04 GETGRENT(3)
hi,
i have in my /etc/group an unix group full.
i need to add new user in this group.
users need to have the same gid and the same name...
is it possible ?
can i create a concatenation with an other group or something else ?
thx (1 Reply)
How can I retrieve the group id of an entry in the /etc/group file given the group name?
I tried using cut and grep but cant get around the problem..
I think this problem can be solved using these commands but I dont know how (I am a newbie at this) (11 Replies)
Hello folks,
I am facing a weird issue on one of the red hat linux 5 box. There is an oracle id which i want to change the primary group. Currently the primary group id is 16600, I did changed it to 16601 using below command:
usermod -g 16601 oracle
But it did not changed. I have tried... (3 Replies)
Hi,
I need to do some section/group sorting. At the moment, I get around it by grep group by group and then re-directing to the same 'final' output file.
Below is what's been sorted so far based on the second field
$ awk -F"," '{ { print $5 " == " $6 } }' /tmp/x.csv | grep -v "^env" | grep... (2 Replies)