my@box:/usr/local/bin$ cd ...
my@box:/usr$my@box:/usr/local/bin$ mkdir ...
my@box:/usr/local/bin$ cd .../..../
my@box:/usr$ my@box:/etc$ cd /usr/local/bin/.../bin/.../bin
my@box:/bin$my@box:/tmp$ x='0/1/2/3/4/5/6/7/8/9'; mkdir -p $x; cd $x
my@box:/tmp/0/1/2/3/4/5/6/7/8/9$ cd ...........
my@box:/tmp$my@box:/usr/local/bin$ cd ...<tab>
my@box:/usr/local/bin$ cd ../../my@box:/usr/local/bin$ mkdir ...
my@box:/usr/local/bin$ cd .../..../<tab>
my@box:/usr/local/bin$ cd .../../../../my@box:/etc$ cd /usr/local/bin/.../bin/.../bin<tab>
my@box:/etc$ cd /usr/local/bin/../../bin/../../bin/my@box:/usr/local/bin$ cd ...<tab>
my@box:/usr/local/bin$ cd ../../<tab>
somedir1 somedir2 somedir3
my@box:/usr/local/bin$ cd ../../<esc> <esc>
my@box:/usr/local/bin$ cd ....<tab>
my@box:/usr/local/bin$ cd ../../../<tab>
otherdir1 otherdir2 otherdir3