off hand i would say you only joined 1 AND 25
and not 1 through 25
-- or--
do the the fact that the terminal reads files NOT in the human order
human = 1,2,3,4,5,6
computer = 1,11,12,13,14,15.. 19,
2 , 21,22,23,24,... 29,
3
cat
will work but for 25 files it would be easier to use lxsplit
the linux version of the windows ljsplit
http://lxsplit.sourceforge.net/
even though it is 4 years old
the source dose build with gcc 4.6 on modern OS's