CST321-Activity6

Bash Shell scripting - File System Navigation

The bash_shell_fileSystemNavigation.sh code first uses 'echo' to display the current directory '$PWD'. Then, it changes to look at the home directory using 'cd ~'. Lastly, it uses the find command to look in the Desktop for all of the files that contain '.c' which is all of the c programs that I have written for this course.

Bash Shell scripting - Simple File Manipulation

The bash_shell_simpleFileManipulation.sh code first changes to the home directory then makes a new directory called 'mycode' and changes into that new directory. It uses the find command to find files in the 'Desktop' directory that end with '.c' and copies them into the current directory. Then, the program moves up a directory and makes a new directory called 'mycode2'. All the files that are in the 'mycode' directory are copied into the new directory 'mycode2'. The 'mycode' directory is renamed 'deadcode' and then deleted.

Terminal - Simple Text File Viewing

Using the terminal to view files using various commands and options.

Using ls, ls -a, and ls -l on the home directory.

Using less to view a .c file.

Using less -N to view a .c file with line numbers.

Using less / to search a .c file.

Using less -x to leave the file text visible after exiting the file.

Using more to view a file.

Using more +10 to start 10 lines down in a file.

Using more -d to display the percent of the file.

Using more -n to specify the number of lines that are displayed at a time.

Using file command to view info about a .c file, home directory, and /bin directory.

Bash Shell - Misc. Commands

The miscCommands.sh program uses echo to first print a string and int. Then echo is used to print the various parameters that are assigned to the variables using $0, $1, and $2.

Bash Shell - Permissions

First, the chmod 555 command is used on the 'bash_shell_fileSystemNavigation.sh' file and then ls -l is used to display the permissions after the change was made. The permissions shown are -r-xr-xr-x which means that the owner 'root', group 'root', and all others have -r-x read and execute permissions but not write. Then, the chmod 777 command is used to change permissions and ls -l to display the files and permissions. The permissions are now-rwxrwxrwx which means that the all users have full read, write, and execute permissions.

Terminal - Redirection

This part uses terminal commands to adjust the view of files.

• sort < name.txt sorted the names in the file.
• ls -l | less piped the result of ls -l into a view where it can be viewed by pages. This would be helpful with very long lists.
• I attempted to pipe a manual into less, but it looks the same.
• Lastly, I used grep to search and pipe the results into less with various options just to see what would happen. Again, this would be useful when there are many results.

Terminal - Head and Tail Files

Used head and tail commands to view the first part and last part of the syslog file. Then compared it to what was in the logs from looking at them in the logs application.

Disk Utilities

Using the terminal sudo fdisk -l command lists available disk devices and partitions on the system. I have 3 different devices listed currently of type: BIOS boot, EFI System, and Linux filesystem.

Using the df command, the various mounts are listed.

Using the Disk Usage Analyzer app displays results of the Home Folder.