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→INVESTIGATION 3: USING STARTUP FILES
# Use the '''more''' command to view the contents of the start-up file called '''/etc/bashrc''' (eg. <span style="color:blue;font-weight:bold;font-family:courier;">more /etc/bashrc</span>)<br><br>This file contains the default settings when you open your Bash shell (eg. if issuing the command '''bash''').<br><br>Since we are using the Bash shell by default, let's create a customized Bash start-up file.<br>This startup file is located in your home directory using the name "'''.bashrc'''"<br><br>
# Let's move your .bashrc file to prevent accidental overwrite.<br><br>Issue the following linux command:<br><span style="color:blue;font-weight:bold;font-family:courier;">mv ~/.bashrc ~.bashrc.bk</span><br><br>If you experience an error message "''No such file or directory''", just ignore since there is no startup file to backup.<br><br>
# Use a text editor like vi or nano to create the text file called '''~/.bashrc''' (eg. <span style="color:blue;font-weight:bold;font-family:courier;">vi ~/.bashrc</span>)<br><br>If you are using the nano text editor, refer to notes on text editing in a previous week in the course schedule.<br><br>
# Enter the following lines in your shell script:<br><span style="font-family:courier;">#!/bin/bash<br>clear<br>set $(ls)<br>echo Here are files in my current directory:"<br>echo<br>for x<br>do<br> echo " $x"<br>done</span><br><br>
# Save your editing session and exit the text editor (eg. with vi: press '''ESC''', then type ''':wx''' followed by '''ENTER''').<br><br>
# x
