cdrecord dev=/dev/hdd /home/chris/Desktop/ubuntu6.10desktopi386.iso
This tells cdrecord to use the .iso image file ubuntu6.10desktopi386.iso, which is in the directory /home/chris/Desktop/, and create a disc from it using the CD writer device specified by dev=/dev/hdd (this is the Sony CDRW CRX216E on my system).
cdrecord will respond with a load of output to the terminal window, which you can happily ignore - it will write the disc correctly.
mkisofs -R -o temp_file.raw /home/chris/mydata cdrecord dev=/dev/hdd temp_file.raw
The first line invokes mkisofs to create a filesystem that can be written to the CD. The program takes all the files and directories you want on the disc and packages them into another file, the name of which you specify using the -o switch (here it is 'temp_file.raw'). The -R switch generates additional file information using the Rock Ridge protocol - you don't need to worry about this - take a look at man mkisofs if you are curious.
growisofs -dvd-compat -speed=2 -Z /dev/hdc -R -J -pad "The Root of All Evil - The God Delusion (1 of 2).avi" "The Root of All Evil - The Virus of Faith (2 of 2).avi"
The various options are described in the manual entry for growisofs, but essentially -dvd-compat ensures maximum DVD compatibility, the -speed option sets the speed of the writing process, -Z, -R and -J options set ISO9660, Rock Ridge and Joliet options. The DVD burner to use is specified by /dev/dvd. Notice that the files to be written have awkward spaces in them, and so they are surrounded by double quotes. The two filenames are simply separated by spaces. This will generate a DVD containing the two files specified.
growisofs -dvd-compat -Z /dev/hdc=/home/chris/Desktop/evilroot.iso
Whatever file layout we had created in the .iso image file will be reproduced on the DVD.
In your Cygwin root directory (get there with cd ~), create an .Xdefaults file. Initially this will be empty. You will fill this file with commands that set various X resources to values that make xterm look like you want it to.
The xterm man page describes, under 'Resources', those that you can change and affect xterm. The most useful ones for setting colours are:
There are many colours that you can specify by name. The colours and their names are listed in a file, rgb.txt, that lives in the directory /usr/lib/X11. For simplicity, you can see the file from my Cygwin setup here.
Your .Xdefaults file will be very simple if you are just setting colours - here is the file from my Cygwin setup.
export PATH=$PATH:"/cygdrive/c/Documents and Settings/ccarter.GEMINI-HILO/scripts"
Note the use of the double quotes around the addition. This is necessary because of the spaces in the path that I wanted to add. If you leave the quotes out, bash will complain and refuse to change the $PATH. If your changes to $PATH are rational, i.e. if you're not doing this on a Windows box under Cygwin, you probably won't have to bother as your extensions to $PATH won't include any spaces.
For completeness, here is my .bashrc file.
Below is what the /etc/environment could look like on a typical machine. Note that it just consists of a single PATH statement, and the user ('joeuser') has added the path to a 'scripts' directory at the end.
When you connect to your remote machine, you should use the following sequence.
xhost + ssh -X -l user mymachine.mydomain.net
The first line allows anyone to make connections to the X server running on your machine, which is necessary to make the connection you need. The second line establishes the SSH connection to the remote host ('mymachine.mydomain.net') as the user 'user'. The -X switch does the magic, by enabling X11 forwarding. To see if it is working, try invoking a small X11 program on the remote machine; say xclock or xcalc.
If you try this and get '~$ Error: Can't open display:', check that the SSH configuration on the remote machine is actually allowing X11 forwarding. To disallow it is the default.
will result in something like this:
Filesystem 1K-blocks Used Available Use% Mounted on /dev/hda1 76185728 35752372 36563300 50% / tmpfs 128212 0 128212 0% /dev/shm tmpfs 10240 808 9432 8% /dev user@machine:~$
which, while correct, is less comprehensible than the result you get when you add the switch -h, or --human-readable.
Filesystem Size Used Avail Use% Mounted on /dev/hda1 73G 35G 35G 50% / tmpfs 126M 0 126M 0% /dev/shm tmpfs 10M 808K 9.3M 8% /dev user@machine:~$
man sshwhich displays the first page of the manual entry for the 'ssh' command. You can scroll up or down a line at a time using the arrow keys; or down a page at a time by pressing the space bar. The 'u' and 'd' keys also scroll up and down by less than a full page.
SSH(1) BSD General Commands Manual SSH(1) NAME ssh - OpenSSH SSH client (remote login program)The '(1)' means that this command is contained in Section 1 of the manual documentation (Section 1 is 'user commands', by the way). If there is another command with the same name in another section - as sometimes happens - you can direct man to a particular section placing the section number between the command and its argument, like this:
man 6 bannerwhich directs man to display the manual page on the banner command from section 6 ('games'). Note that this is not required if there is only one entry for banner across the all the sections. In this case,
man banneris just as effective.