Shell Programming and Scripting

1> FILE redirect standard output (stdout) of a command to FILE

Example (the output of the command will be placed in the file, FILES; any error messages will appear on the screen):

Code:

ls [a-z]* 1> FILES

2> FILE redirect standard error (stderr) of a command to FILE

Example (the output of the command will appear on the screen; any error messages will be placed in the file, ERRORLOG):

Code:

ls qwerty asdfg 2> ERRORLOG

CMD <<EOF Use the following lines (known as a here document) as input to CMD. The here document ends with the second EOF on a line by itself.

Example (the lines between EOF and EOF command will appear on the screen):

Code:

cat <<EOF
This a test
of a here document
EOF