Attached unzip pkzip bzip for AIX
How to install it
1) download the attachment
2) ftp it to AIX machines in binary mode
ftp it to /tmp/unzip
3) cd /tmp/unzip
4) inutoc .
5) smitty install_all
6) select source as ==> .
7) Select the packages by pressing F4 or ESC+4
8) Commit ==> Yes
9) Preview ==> NO
10) accept license agreement ==> YES
IBM AIX Toolbox for Linux Applications - Easy Install
==========DONE================
gunzip gzip comes in AIX 6.1 by default but doesn't decompress .zip files... it only uncompresses .gz
uncompress only decompresses .Z
unzip will decompress .zip