bash comparison

[crayon-6605803c9dbdd846998138/]
Reference: http://www.tldp.org/LDP/abs/html/comparison-ops.html

 

 
[crayon-6605803c9dbe7959618006/]
 

#+ 
http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_02.html