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→INVESTIGATION 4: USING START-UP FILES
# 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>
# '''Exit ''' your current Bash shell session.<br><br>
# '''Login''' again to your matrix account.<br><br>Did you start-up file customize your Bash shell environment with colours?<br><br>'''NOTE:''' This is where you can make your Linux shell environment values '''persistent'''<br>(i.e. saved regardless of exit and login to your Bash Shell such as '''aliases''', '''umask''', etc.).<br><br>
# Issue the following linux command to '''restore ''' your previous settings for your bashrc startup file:<br><span style="color:blue;font-weight:bold;font-family:courier;">mv ~/.bashrc.bk ~/.bashrc</span><br><br>If you experience an error message "''No such file or directory''", just ignore.<br><br># '''Exit''' your current Bash shell session.<br><br># '''Login''' again to your matrix account.<br><br>What did you notice this time?<br><br>
# After you complete the Review Questions sections to get additional practice, then work on your '''online assignment 3,'''<br>'''sections 4 to 6''' labelled: '''More Scripting (add)''', '''Yet More Scripting (oldfiles)''', and '''sed And awk'''<br><br>
