What are these in the output of "stty" ?

techie_san778 · 10-19-2013, 01:07 AM

Hello Frnds,

Can someone explain the function of these terms in the output of stty command :

start=^q; stop=^; susp=^z; dsusp=^y;

I know ^z means to suspend a process and thereby sending it to background. But what are
start
stop
dsusp ?

Thanks in advance..

unSpawn · 10-19-2013, 05:17 AM

See 'man stty' under "special characters"?

techie_san778 · 10-22-2013, 07:08 AM

I had first done that only, but want to know the use of them.. I need to know the situations
where one can / should use them (start,stop,dsusp).

pan64 · 10-22-2013, 08:05 AM

see man page: http://linux.die.net/man/1/stty

Code:

dsusp CHAR
    CHAR will send a terminal stop signal once input flushed start CHAR
start
    CHAR will restart the output after stopping it 
stop CHAR
    CHAR will stop the output

stop will "freeze" your terminal, scrolling will stopped, will not be printed anything.
start will enable printing to the terminal.
You can try a command writing a lot of texts to the terminal and press ^S and/or ^Q to check

stop will not suspend the app (that will continue running), no output will be displayed but no output will be lost (will be printed after start).
suspend will suspend the app itself, it will hang for a while....