Open jjqq2013 opened 4 years ago
I found an interesting thing,
if a file a does already exist, then
a
lbzcat a.bz2 > a is much much slower than lbzcat a.bz2 >! a and rm -f a; lbzcat a.bz2 > a
lbzcat a.bz2 > a
lbzcat a.bz2 >! a
rm -f a; lbzcat a.bz2 > a
Why?
I found an interesting thing,
if a file
adoes already exist, thenlbzcat a.bz2 > ais much much slower thanlbzcat a.bz2 >! aandrm -f a; lbzcat a.bz2 > aWhy?