HP-UX Reference (11i v1 05/09) - 1 User Commands A-M (vol 1)

k
ksh(1) ksh(1)
Be aware that the value of the
IFS variable in the user’s environment affects the behavior of scripts.
ksh implements command substitution by creating a pipe between itself and the command. If the root file
system is full, the substituted command cannot write to the pipe. As a result, the shell receives no input
from the command, and the result of the substitution is null. In particular, using command substitution for
variable assignment under such circumstances results in the variable being silently assigned a
NULL value.
The contents of
here-documents
are stored in temporary files named /tmp/sh<pid>.<number>
.
Care is taken to remove these temporary files after their usage. However, because of design limitations,
some of these temporary files may not be removed.
AUTHOR
ksh was developed by AT&T.
FILES
/etc/passwd to find home directories
/etc/profile read to set up system environment
/etc/suid_profile
security profile
$HOME/.profile read to set up user’s custom environment
/tmp/sh ∗ for here-documents
SEE ALSO
cat(1), cd(1), echo(1), env(1), getopts(1), kill(1), pwd(1), read(1), test(1), time(1), umask(1), vi(1), dup(2),
exec(2), fork(2), gtty(2), pipe(2), stty(2), umask(2), ulimit(2), wait(2), rand(3C), a.out(4), profile(4),
environ(5), lang(5), regexp(5), signal(5).
Section 1−−432 Hewlett-Packard Company − 23 − HP-UX 11i Version 1: September 2005