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Just in case your problem isn't solved yet:

If you want to isolate a child process from signals to the parent, you have to use setpgrp to create a new process group, like:


pid_t pid = fork();...

Unless otherwise handled? Gracelessly kill the program. A very few signals have special hardwired behavior, like SIGSTOP and SIGCONT, but these trigger behavior that happens outside the program and...

Your application has to handle what occurs when it gets a TERM signal otherwise the default behavior occurs.

That's an unusual question... why?

There is no signal to specifically flush all buffers, unless (i) a particular application includes a facility for specifically doing that or (ii) you don't mind...

Look it up in the man page:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c02267599/c02267599.pdf

And HP-UX /sbin/sh... the /usr/bin/sh is the posix...

ran:/sbin $ file sh
sh: PA-RISC1.1 shared executable
ran:/sbin $ file /usr/bin/sh
/usr/bin/sh: PA-RISC1.1 shared executable...

AFAIK of the modern OS, only on Solaris /bin/sh points to an actual bare-bones Bourne Shell, which is indeed the "earliest shell".
On most other modern systems /bin/sh is either a soft link or a...

at rhel 5.5 here:
[root@newinstaller19 ~]# which sh
/bin/sh
[root@newinstaller19 ~]# ls -l /bin/sh
lrwxrwxrwx 1 root root 4 Oct 12 09:28 /bin/sh -> bash
[root@newinstaller19 ~]#
and then:...

depand on. There are several sh in the system.

For example, in Solaris,

-bash-3.00$ ls -l /usr/bin/sh
lrwxrwxrwx 1 root root 13 Mar 5 2007 /usr/bin/sh -> ../../sbin/sh
-bash-3.00$ ls -l...