08-22-2013
Thanks very much all for the replies. Really appreciate it. The place to run this for me would be even in basic shells like the Linux, Solaris, AIX etc 'maintenance' / 'recovery' shells.
So things like Perl or openssl won't work as required libraries won't be loaded in those simple recovery shells.
Corona688:
That's a good option there but unfortunately it didn't work fully or I should say it DID work partially. The loop continued to run even though the dd command ended / stopped.
Cheers,
DH
Last edited by Devyn; 08-22-2013 at 05:49 PM..
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LEARN ABOUT LINUX
endusershell
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
CONFORMING TO
4.3BSD.
SEE ALSO
shells(5)
COLOPHON
This page is part of release 3.27 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
2007-07-26 GETUSERSHELL(3)