Tagged Questions
3
votes
1answer
66 views
Prompt for confirmation for every command
I'm writing a pretty ad-hoc install script for some thing. No much control constructs, basically just a list of commands. I'd like the user to confirm each command before it gets executed. Is there a ...
3
votes
1answer
129 views
On OS X, how do I log in interactively as root starting from my normal user account?
I have been doing this for a while:
sudo su -
but it uses 'sh' rather than 'bash', which is what I'd like to do.
Which command will log me in as root and get me a bash shell even if that's not the ...
79
votes
14answers
11k views
How to do integer & float calculations, in bash or other languages/frameworks?
Using echo "20+5" literally produces 20+5
What command can I use to get the actual sum, e.g. 25 in this case.
Also, what's the easiest way to do it just using bash for floating point, e.g.
echo ...
