Q: -bash: sencha command not found I installed Sencha SDK and Sencha command on my mac-mini and done with some sample app.. but suddenly after some time when I tried to run sencha command on terminal, I got the response as '-bash: sencha command not found', I don't know why this was happened. Earlier I didn't find such type of response but now I got this error. Please tell me what are the possible scenarios for this thing to be happened.. Thanks for your help

Alens-Mac-mini:touch-2.2.0 SenchaTools$ sencha
  -bash: sencha: command not found


A: You should procede that way:


*

*Verify if this command is contained in PATH. PATH is an environment variable holded by bash and initialized when a new user is logged in (.bash_profile file for all user and the corrispective into home for single user). So check what echo $PATH told you and verify if this command is contained into those folder

*Probably, from step 1, the answer will be "No, it isn't". So you have to procede this way: use whereis command to search this command (that will be an executable script) and once you find it, you have two possibilities: one is to use it directly by specifying full path (returned from whereis command). 
If you want to run simply it with sencha -arguments you have to add executable path returned by whereis ($PATH=$PATH:/returned/path/by/whereis) into file .bash_profile
In that way you should be able to execute your command from any "point" in your filesystem

A: The Sencha installer expects you to use bash as shell. It fails, if you use any other (like the nice zsh). You need to copy the content of .bash_profile to your shell startup-file (.zprofile in my case), save it and open a new terminal window. 

A: Add PATH and VAR manually in .bash_profile file at the root of your user folder, 
export SENCHA_CMD_3_0_0="/Users/you/Path/To/Sencha/Cmd/3.0.0.XXX"
export PATH=/Users/you/Path/To/Sencha/Cmd/3.0.0.188:$PATH
Find out more about this issue at sencha forum https://www.sencha.com/forum/showthread.php?245243-Command-not-found-mac-OSX-mountain-lion
