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getent - Online in the Cloud

Run getent in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command getent that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


getent - get entries from Name Service Switch libraries

SYNOPSIS


getent [option]... database key...

DESCRIPTION


The getent command displays entries from databases supported by the Name Service Switch
libraries, which are configured in /etc/nsswitch.conf. If one or more key arguments are
provided, then only the entries that match the supplied keys will be displayed.
Otherwise, if no key is provided, all entries will be displayed (unless the database does
not support enumeration).

The database may be any of those supported by the GNU C Library, listed below:

ahosts When no key is provided, use sethostent(3), gethostent(3), and endhostent(3)
to enumerate the hosts database. This is identical to using hosts. When one
or more key arguments are provided, pass each key in succession to
getaddrinfo(3) with the address family AF_UNSPEC, enumerating each socket
address structure returned.

ahostsv4 Same as ahosts, but use the address family AF_INET.

ahostsv6 Same as ahosts, but use the address family AF_INET6. The call to
getaddrinfo(3) in this case includes the AI_V4MAPPED flag.

aliases When no key is provided, use setaliasent(3), getaliasent(3), and
endaliasent(3) to enumerate the aliases database. When one or more key
arguments are provided, pass each key in succession to getaliasbyname(3) and
display the result.

ethers When one or more key arguments are provided, pass each key in succession to
ether_aton(3) and ether_hostton(3) until a result is obtained, and display
the result. Enumeration is not supported on ethers, so a key must be
provided.

group When no key is provided, use setgrent(3), getgrent(3), and endgrent(3) to
enumerate the group database. When one or more key arguments are provided,
pass each numeric key to getgrgid(3) and each nonnumeric key to getgrnam(3)
and display the result.

gshadow When no key is provided, use setsgent(3), getsgent(3), and endsgent(3) to
enumerate the gshadow database. When one or more key arguments are provided,
pass each key in succession to getsgnam(3) and display the result.

hosts When no key is provided, use sethostent(3), gethostent(3), and endhostent(3)
to enumerate the hosts database. When one or more key arguments are
provided, pass each key to gethostbyaddr(3) or gethostbyname2(3), depending
on whether a call to inet_pton(3) indicates that the key is an IPv6 or IPv4
address or not, and display the result.

initgroups
When one or more key arguments are provided, pass each key in succession to
getgrouplist(3) and display the result. Enumeration is not supported on
initgroups, so a key must be provided.

netgroup When one key is provided, pass the key to setnetgrent(3) and, using
getnetgrent(3) display the resulting string triple (hostname, username,
domainname). Alternatively, three keys may be provided, which are
interpreted as the hostname, username and domainname to match to a netgroup
name via innetgr(3). Enumeration is not supported on netgroup, so either one
or three keys must be provided.

networks When no key is provided, use setnetent(3), getnetent(3), and endnetent(3) to
enumerate the networks database. When one or more key arguments are
provided, pass each numeric key to getnetbyaddr(3) and each nonnumeric key to
getnetbyname(3) and display the result.

passwd When no key is provided, use setpwent(3), getpwent(3), and endpwent(3) to
enumerate the passwd database. When one or more key arguments are provided,
pass each numeric key to getpwuid(3) and each nonnumeric key to getpwnam(3)
and display the result.

protocols When no key is provided, use setprotoent(3), getprotoent(3), and
endprotoent(3) to enumerate the protocols database. When one or more key
arguments are provided, pass each numeric key to getprotobynumber(3) and each
nonnumeric key to getprotobyname(3) and display the result.

rpc When no key is provided, use setrpcent(3), getrpcent(3), and endrpcent(3) to
enumerate the rpc database. When one or more key arguments are provided,
pass each numeric key to getrpcbynumber(3) and each nonnumeric key to
getrpcbyname(3) and display the result.

services When no key is provided, use setservent(3), getservent(3), and endservent(3)
to enumerate the services database. When one or more key arguments are
provided, pass each numeric key to getservbynumber(3) and each nonnumeric key
to getservbyname(3) and display the result.

shadow When no key is provided, use setspent(3), getspent(3), and endspent(3) to
enumerate the shadow database. When one or more key arguments are provided,
pass each key in succession to getspnam(3) and display the result.

OPTIONS


-s service, --service service
Override all databases with the specified service. (Since glibc 2.2.5.)

-s database:service, --service database:service
Override only specified databases with the specified service. The option may be
used multiple times, but only the last service for each database will be used.
(Since glibc 2.4.)

-i, --no-idn
Disables IDN encoding in lookups for ahosts/getaddrinfo(3) (Since glibc-2.13.)

-?, --help
Print a usage summary and exit.

--usage
Print a short usage summary and exit.

-V, --version
Print the version number, license, and disclaimer of warranty for getent.

EXIT STATUS


One of the following exit values can be returned by getent:

0 Command completed successfully.

1 Missing arguments, or database unknown.

2 One or more supplied key could not be found in the database.

3 Enumeration not supported on this database.

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