Ming ________________________________ From: [email protected] [[email protected]] on behalf of MING TSANG [[email protected]] Sent: 14 June 2011 21:00 To: Federico Bruni Cc: [email protected] Subject: Re: V2.14.0 - midi volume & midi arpeggio
Federico: Thank you very much for your help. Now I have configure frescobaldi to run v2.12.3 and v2.14.1. Now I can go back to code lilypond scores. I will soon start to play the development v2.15.1 when I have spare time. I had been using jedit in window 7, but only one version of lilypond. Now frescobaldi ubuntu provide different version of lilypond to run - an excellent software. Thank you for the tips on terminal commands. This is my first month of using linux ubuntu. What is the difference between sh and sudo sh? Blessing, Ming. ------ Certain commands in Ubuntu require 'administrator' permissions as the 'sh' command needs to access areas of the operating system that a normal user does not have permissions for. So when you run any command with the additional 'sudo' command before it, it tells Ubuntu that the command is to be run 'as if' you were logged in as the administrator (or 'root' as is more commonly known in Linux) - 'su' actually stands for 'super user' and (I think) the 'do' is literal as in 'super user do' [command], but that is not important. There will be others that might jump in to say that you can also use sudo command for non-administrator accounts (which is true) but for your case this is what it is used for. WHat is important is that any command you run with 'sudo' before it requires your password to be entered before the command is executed. This is just a simple security feature of Ubuntu that stops 'anyone' or 'any process' from running as 'root' without entering a password. Ubuntu is slightly different from other Linux versions/distributions because it does not by default allow you to log in as 'root', so any commands that require this kind of 'extra' privilege simply make you enter your password as verification. If you try to run a command that requires 'sudo' without typing the command in, the prompt will tell you...something like 'permission denied' or 'you need to be 'root' to do that'. I hope that helps. James PS if you ever want to know what a command does or means you can simply type 'man' and then the command for example 'man sudo' or you can also type 'info sudo' which will give you a slightly different (but often more updated) help system. PPS if you do use 'man' or 'info' type the space bar to 'page down' or the 'return button' to go a line at a time. Finally to 'come out' of the man or info page, type 'q' (for quit) and it will take you back to the prompt. Happy Hacking! _______________________________________________ lilypond-user mailing list [email protected] https://lists.gnu.org/mailman/listinfo/lilypond-user
