z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

tcsh
here’s the behavior with symlinks set to ignore,
> cd /tmp/to/dist; echo $cwd
/tmp/to/dst
> cd ..; echo $cwd
/tmp/to
and here’s the behavior with symlinks set to expand.
> cd /tmp/to/dist; echo $cwd
/tmp/to/dst
> cd ..; echo $cwd
/tmp/to
> cd /tmp/to/dist; echo $cwd
/tmp/to/dst
> cd ".."; echo $cwd
/tmp/from
> /bin/echo ..
/tmp/to
> /bin/echo ".."
..
expand expansion:
1. works just like ignore for built-ins like cd,
2. is prevented by quoting, and
3. happens before filenames are passed to non-built-in commands.
time If set to a number, then the time built-in command executes automatically
after each command which takes more than that many CPU seconds. If
there is a second word, it is used as a format string for the output of the
time built-in. The following sequences may be used in the format string:
%U The time the process spent in user mode in cpu seconds.
%S The time the process spent in kernel mode in cpu seconds.
%E The elapsed (wall clock) time in seconds.
%P The CPU percentage computed as (%U + %S) / %E.
%W The number of times the process was swapped.
%X The average amount in (shared) text space used in Kbytes.
%D The average amount in (unshared) data/stack space used in
Kbytes.
%K The total space used (%X + %D) in Kbytes.
%M The maximum memory the process had in use at any time in
Kbytes.
%F The number of major page faults (page needed to be brought from
disk).
%R The number of minor page faults.
%I The number of input operations.
%O The number of output operations.
%r The number of socket messages received.
%s The number of socket messages sent.
%k The number of signals received.
%w The number of voluntary context switches (waits).
668 z/OS V1R9.0 UNIX System Services Command Reference