This is an excellent tool that help shell script users to be more familiar with the commands.
Shell script Quick Reference:
>>A handy tool to locate Shell script APIs.
>>Consist of single drum.
>>A text area is provided below to show the selected contents details.
Shell script Quick Reference covers the following areas:
>>Arithmetic (arithmetic commands )
>>Basic Operators(consist on commands on basic operators such as and/or/not )
>>Basic Syntax (give basic syntax )
>>File Options (file comparison operators )
>>Number Equality (numeric comparison commands )
>>Linux Shell Tricks (some other tricks )
>>String Comparison (commands for string comparison )
>>Operators Grouping(perform multiple commands )