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Tutorial12: Shell Scripting - Part 2

104 bytes added, 21 March
INVESTIGATION 4: USING START-UP FILES
# 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''",<br>just ignore this command since there is no '''~/.bashrc''' file in your home directory.<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 (the symbol "<span style="font-family:courier;font-weight:bold;">[</span>" is the open square bracket symbol):<br><span style="font-family:courier;font-weight:bold;">clear<br>echo -e -n "\e[0;34m"<br>echo "Last Time Logged in (for security):"<br>echo<br>lastlog -u $USER<br>echo<br>echo -e -n "\e[m"</span><br><br>'''NOTE:''' You will notice there is '''NO she-bang line''' since this is a '''start-up''' file.<br><br>
# Save your editing session and exit the text editor (eg. with vi: press '''ESC''', then type ''':x''' followed by '''ENTER''').<br><br>
# You can test run the startup file without exiting and re-entering your Bash shell environment.<br>Issue the following:<br><span style="color:blue;font-weight:bold;font-family:courier;">. ~/.bashrc</span><br><br>What do you notice?<br><br>
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