Very Computer

    | tee $TFILE | more

If I quit more(1) before output from tee(1) is complete, I want to
s*$TFILE,  else I want to move it to another name.  I've tried

    | ( trap 'rm $TFILE' 13; tee ) | more;
    mv $TFILE othername

and

    | ( tee ; mv $TFILE othername) | more

but in both cases the move occurs regardless of completion (in the second
case, the "mv" seems to be executing even after shell script has exited).

Any smart tricks?

----------------------
Charles Lambert

        | (tee "$TMP" && mv "$TMP" "$REAL" || rm "$TMP" ) | more

If the more dies, then the tee fails because it cannot finish its
writes.  Note that the code above also has the effect of removing
the $TMP file if the mv failes.
--
Dave Hitz

... |
if tee $TFILE; then
        mv $TFILE newname
else
        rm $TFILE
fi | more

If you quit out of more, tee gets a SIGPIPE and a non-zero exit status,
causing the "else" arm of the conditional to be executed.  Note that in
/bin/sh you can pipe into and out of if, while, for, and case statements.

If you don't mind destroying the file "newname" when you quit out of more,
use this simpler solution:

... | (tee newname || rm newname) | more

in /bin/sh "||" and "&&" have short-circuit evaluation, so you can
conditionally execute commands based on the exit status of a previous
command.

--

University of *ia Academic Computing Center