Remove the Cygwin warning about MS-DOS path

MS-DOS style path detected: C:\wcs\eclipse\pcm51_io_to_mb_app\code\appl
  Preferred POSIX equivalent is: /cygdrive/c/wcs/eclipse/pcm51_io_to_mb_app/code/appl
  CYGWIN environment variable option "nodosfilewarning" turns off this warning.
  Consult the user's guide for more details about POSIX paths:
    http://cygwin.com/cygwin-ug-net/using.html#using-pathnames


Run this command:
set CYGWIN=nodosfilewarning

How to enable ping response in Window 7

Response to an ping is disabled in Windows 7 by default. I found this post on how to enable it:
How to enable ping response in Windows 7

cat << EOF

Here is an option for writing several line of text to a file via a the shell.


~ # cat > test << EOF
> this is first line
> this is the second line
> EOF
~ # cat test
this is first line
this is the second line
~ #

Pipe stdout and stderr to one file.

In the Linux shell you can pipe both stdout and stderr to a file with > output_file 2>&1
E.g.:

 memtester 16M 1 > /dev/null 2>&1

Chain linux commands together

In the Linux shell you can chain a number of command together. You can do a number of command after each other without having to wait for each command to end.

e.g.
touch memtester ; memtester 16M 1 ; rm memtester

The commands is here separated with ; which tells the shell to execute the first command and then it is done it should execute the next command etc.

Another example:
touch memtester && memtester 16M 1 && rm memtester

Here the commands are separated with && which tells the shell to execute the first command and if it completes successfully then execute the next command and etc.