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getusershell, setusershell, endusershell ? get legal user shells |
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); |
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. |
The getusershell() function returns a NULL pointer on end-of-file. |
/etc/shells |
BSD 4.3 |
shells(5) |