GETUSERSHELL(3) BSD Library Functions Manual GETUSERSHELL(3)NAME
getusershell, setusershell, endusershell -- get valid user shells
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
char *
getusershell(void);
void
setusershell(void);
void
endusershell(void);
DESCRIPTION
The getusershell() function returns a pointer to a valid user shell as defined by the system manager in the shells database as described in
shells(5). If the shells database is not available, getusershell() behaves as if /bin/sh and /bin/csh were listed.
The getusershell() function reads the next line (opening the file if necessary); setusershell() rewinds the file; endusershell() closes it.
FILES
/etc/shells
DIAGNOSTICS
The routine getusershell() returns a null pointer (0) on EOF.
SEE ALSO nsswitch.conf(5), shells(5)HISTORY
The getusershell() function appeared in 4.3BSD.
BUGS
The getusershell() function leaves its result in an internal static object and returns a pointer to that object. Subsequent calls to
getusershell() will modify the same object.
BSD November 23, 2004 BSD
Check Out this Related Man Page
GETUSERSHELL(3) Linux Programmer's Manual GETUSERSHELL(3)NAME
getusershell, setusershell, endusershell - get permitted user shells
SYNOPSIS
#include <unistd.h>
char *getusershell(void);
void setusershell(void);
void endusershell(void);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
getusershell(), setusershell(), endusershell():
_BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
DESCRIPTION
The getusershell() function returns the next line from the file /etc/shells, opening the file if necessary. The line should contain the
pathname of a valid user shell. If /etc/shells does not exist or is unreadable, getusershell() behaves as if /bin/sh and /bin/csh were
listed in the file.
The setusershell() function rewinds /etc/shells.
The endusershell() function closes /etc/shells.
RETURN VALUE
The getusershell() function returns a NULL pointer on end-of-file.
FILES
/etc/shells
ATTRIBUTES
Multithreading (see pthreads(7))
The getusershell(), setusershell() and endusershell() functions are not thread-safe.
CONFORMING TO
4.3BSD.
SEE ALSO shells(5)COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2013-06-21 GETUSERSHELL(3)
can someone tell me how I can deal with a problem am having concerning users that are faliing to use one of the shells specified in the /etc/shells file.
as a result, am told, these users are bound fail to connect via FTP. i know i goto check the /etc/shells file on the target host but what... (5 Replies)
How do I know what type of shells are available in my Unix system? Are there a single command or environment variable that can let me find that out?
Best regards,
John Chan (7 Replies)
Can you pls. tell me, why we have different shells in UNIX OS ( Eg. SunOs) and also I would like to know what is the specific difference b/w SVR and BSD ?
Thanks. (2 Replies)
Hi, I'm looking for a way to send commands through multiple shells/terminals (not sure which is proper syntax). Basically, I have to open 3 different shells/terminals and run separate parts of a program suite in each of them. I find this annoying. The commands I have to do are simple, and could... (1 Reply)
To find all of the available shells in your system we can use
cat /etc/shells
but i dont find shells in my system where else i can look for same info?? (4 Replies)
Hi the /etc/shells file is missing on some of development boxes. Is this ok? Where can I find this file?
---------- Post updated at 07:07 AM ---------- Previous update was at 07:07 AM ----------
I have solaris, linux, aix and hpux machines and on all of these machines the /etc/shells file is... (8 Replies)