-rws--x--x 1 root root 90972 2009-12-02 01:20 /usr/bin/sudo*
root@thor:~# mkdir 1
root@thor:~# cp /usr/bin/sudo 1
root@thor:~# cd 1
root@thor:~/1# split -b 50K sudo
root@thor:~/1# ls -l
total 192
-rwx--x--x 1 root root 90972 2012-02-15 22:44 sudo*
-rw-r--r-- 1 root root 51200 2012-02-15 22:45 xaa
-rw-r--r-- 1 root root 39772 2012-02-15 22:45 xab
root@thor:~/1# cat xaa xab > sudo1
root@thor:~/1# md5sum sudo
cf092fd20b984a7327254e504182ee16 sudo
root@thor:~/1# md5sum sudo1
cf092fd20b984a7327254e504182ee16 sudo1
EDIT: Не говорим за текстови файлове, cat си върши перфектно работата
root@thor:~/1# file sudo
sudo: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), stripped
root@thor:~/1# file sudo1
sudo1: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), stripped