How to set read command to execute without having to press Enter button in shell?
I thought dd might be able to do this, so I tried it out and didn't get anywhere. However, Google found this for me and I adapted it here:
readOne () { local oldstty oldstty=$(stty -g) stty -icanon -echo min 1 time 0 dd bs=1 count=1 2>/dev/null stty "$oldstty"}Define this function once at the beginning of your script, then you can use it like this:
char=$(readOne) # get the characterecho $char # print the character (or you can do something else with it)