Changes

Jump to: navigation, search

Tutorial5: Redirection

86 bytes added, 13:22, 25 January 2020
INVESTIGATION 2: REDIRECTION USING PIPES
# Change to your '''home''' directory and confirm that you are now in your home directory.<br><br>
# Issue the ls command to view the contents of your '''~/redirect''' directory.<br><br>These are all temporary files that you created in your previous investigation.<br>The '''problem''' with creating temporary files, is that they take up space on your server,<br>and should be removed.<br><br>
# Issue the following Linux command to remove all files in your ''redirect'' directory: <span style="color:blue;font-weight:bold;font-family:courier;">rm * -r ~/redirect and confirm that you have removed this directory and its contents.</span><br><br>'''NOTE: ''' You will be issuing a pipeline command which will use the pipe symbol "|" that will send the stdout from a command as stdin into another command.<br><br>
# Issue the follow Linux pipeline command: <span style="color:blue;font-weight:bold;font-family:courier;">ls /bin | more</span><br><br>What happened?<br><br>
# Issue the following Linux pipeline command: <span style="color:blue;font-weight:bold;font-family:courier;">ls /bin | who</span><br><br>What happened? Why is the result different than antipated?[[Image:pipe-diagram-1.png|thumb|right|350px|]]<br><br>'''NOTE:''' When issuing pipeline commands, commands to the right of the pipe symbol must be designed to accept stdin. Since the who command does not, an error message was displayed.<br><br>
13,420
edits

Navigation menu