GNU Libtool suffers[1] from the fact that repeated concatenation
var=
for elem in $long_list
do
var="$var $elem"
done
scales quadratically in the number of list elements. Now while most if
not all common shells exhibit this behavior, and it happens even when
you append a constant str
Why does the shell snippet
exec 5>file
echo foo >&5
echo bar >&5
cause repeated dup()ing and close()ing of the file descriptor instead of
a simple write() to the already open file descriptor, as pointed out in
[1]?
Looks like a simple optimization to avoid 2 of 3 syscalls (disclaimer: I
hav
Title: Help: exit BASH on iBook?
Iâve accidentally gotten into the BASH shell on my iBook. The prompt reads: -sh-2.05b#
Can someone please tell me how to exit the shell, and return to my normal OS X Panther interface?
Many thanks,
Jeff
Jeffrey S. Ruth, Ph.D.
Asst. Prof. o
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