Introduction
Details of the Introduction to Unix for Bioinformatics and Genomics Analysis (i2u4bga)
Commands dealing with directories
special directories / paths
|  Command
 | 
 Meaning
 | 
 cd or cd ~
 | 
 change to $HOME directory
 | 
 cd - or cd -
 | 
 change to previous directory location
 | 
 ls -ld <dirname>
 | 
 list details of the named directory
 | 
special directories / paths
|  Symbol(s)
 | 
 Meaning
 | 
 . or ./
 | 
 current, present working directory (relative)
 | 
 .. or ../
 | 
 Parent directory (relative)
 | 
 ../../
 | 
 Parent of the parent (relative)
 | 
 ~
 | 
 Home directory, $HOME also works (absolute)
 | 
 /
 | 
 System root directory, not a place to stay in! (absolute)
 | 
 /path/to
 | 
 Common placeholder for absolute path to somewhere (absolute)
 | 
Links
More cheatsheets
http://www.rain.org/~mkummel/unix.html