Re: Meeting Minutes for Wednesday, Nov 30, 2005

Just a comment.
I think it would be a great improvement to the quality of our meetings
if we could arrange for having a video projection equipment. Since
most of the time someone will show something on his Linux box it will
be nice to project what that person is showing/doing on a big screen
for everyone to see.

Andrei


On 12/1/05, Derek Perriero <[email protected]> wrote:
> So, here's what went down this meeting, and you can also find the current
> and previous minutes at
> http://morlug.org/meetings/minutes/.
>
>  ##
>
>  Morlug - Wednesday, November 30, 2005 - Command Line Kung Foo!
>
>  Topics::
>
>  Bourne Shell
>  GNU Runtime Libraries
>  History
>  Textual Completion (TAB)
>  Processing Handling
>
>
>  Description::
>
>  An attempt to touch on the basics of command in Linux.
>
>  Meeting Content::
>
>  Jonathon has the floor.  Linux needs a human interaction via commandline.
>  A shell surrounds the kernel, the outer most layer.  Std input/output
> through  the keyboard.From the Bourne Shell (sh) Bourne again shell was born
> by Richard Stallman.
>  Its easy to start most gui's from the command line.  Emacs is a great
> editor based on the GNU project.  Now let's practice...
>
>  For Emacs:
>  ctrl-k (kill) deletes a whole line.
>  ctrl-y (yank) restores the line.
>  Basically its cut/paste with funny names, best described in the
> documentation for emacs.
>  alt-b moves you backwards through the line.
>  alt-f moves you forward through the line.
>  alt-backspace delete the last previous word.
>
>  On some terminals alt may not work.
>
>  For History:
>  pressing the up arrow will bring up your most recent command.
>  now everyone type "echo $HISTFILE"
>  ...~/.bash_history
>
>  For Textual Completion:
>  pressing TAB will list all items that can be completed from the letters
> typed in the command line.
>  ...$ <TAB> shows all shell environment variables
>  ...~ <TAB> shows all items related to current user
>
>  More Bash Commands:
>  cd . takes you to your current directory
>  cd .. takes you to the parent directory
>
>  typing help will display all built-in commands into the shell.
>
>  typing pwd will display your current directory.
>
>  typing echo $PATH will display all bin directories.
> .../usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin
>
>  type echo * to display all contents of directory
>  ...a mimicked command would be ls
>  the * is a wildcard to display all items
>  ex: echo g* would display all items that begin with "g".
>
>  Searching on a range of letters.
>
>  typing cd $HOME will bring you back to your home directory which is the
> same as cd ~
>
>  Processs Handling:
>
>  User multi-tasking.
>
>  ex: type emacs& to send the the process to the background
>
>  type fg to see background processes
>  type bg to bring it back to the background
>
>  type jobs to list processes, then kill %[job #]
>
>  type jobs -p to list process id.
>
>  type ctrl-c to kill process
>
>  type ctrl-\ to kill ultimately
>
>  type killall [process name] -kills all child process below it.
>
>  Unix I/O:
>  file I/O sequence of characters
>  ...ex: drives are treated as files.
>
>  cat copies input to output
>  grep searches input to output
>
>  the pipe character can be useful to move data outputted to a program to
> use.
>  ex: ls -la | less will output the contents of the directory to less
>
>  tee is used to pipe std output to a file.
>
>  label redirection is used to redirect std output to a file
>  ex: cat >>file<<.
>      >type here
>      >foobar
>      ctrl-d
>
>
>  p.s. Jonathon will be posting his meeting notes on the command line, so
> check it out for a more in depth look.
>
> --
> Perriero, Derek
> [email protected]
>
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>
>
>


--
Andrei V. Smirnov
MulPhys.com
http://smirnov.mae.wvu.edu