checks for layout
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@ -79,24 +79,24 @@
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1. There is one command in the table above that doesn’t have a man page. Which one is it and why do you think that the command doesn’t have a man page?
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1. Using the commands in the table above, create the following file tree. The names that start with a capital are Directories and the ones in lower case are files.
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```
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User
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├── Documents
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| ├──Hello
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| | ├──hey2
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| | ├──helloa
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| | └──ola5
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| └──World
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| └──earth9
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├── Downloads
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| ├──Music
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| └──Songs
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| ├──collection1
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| └──collection2
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├── Test
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| └── passa
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└── test
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```
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```
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User
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├── Documents
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| ├──Hello
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| | ├──hey2
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| | ├──helloa
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| | └──ola5
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| └──World
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| └──earth9
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├── Downloads
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| ├──Music
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| └──Songs
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| ├──collection1
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| └──collection2
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├── Test
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| └── passa
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└── test
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```
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1. Display on the screen the present working directory, including the subfolders.
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1. Search within the tree for all files that end with a number.
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1. Remove the entire directory tree with a single command.
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@ -112,35 +112,35 @@ User
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* docs
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* /
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1. Observe the following file structure. Note: Directories end with a slash (/) when tree is invoked with the -F option. You will need elevated privileges in order to run the tree command on the root (/) directory. The following is example output and is not indicative of a full directory structure. Use it to answer the following questions:
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```
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$ sudo tree -F /
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```
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$ sudo tree -F /
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/
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├── etc/
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│ ├── network/
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│ │ └── interfaces
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│ ├── systemd/
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│ │ ├── resolved.conf
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│ │ ├── system/
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│ │ ├── system.conf
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│ │ ├── user/
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│ │ └── user.conf
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│ └── udev/
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│ ├── rules.d/
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│ └── udev.conf
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└── home/
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├── lost+found/
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└── user/
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└── Documents/
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/
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├── etc/
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│ ├── network/
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│ │ └── interfaces
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│ ├── systemd/
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│ │ ├── resolved.conf
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│ │ ├── system/
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│ │ ├── system.conf
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│ │ ├── user/
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│ │ └── user.conf
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│ └── udev/
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│ ├── rules.d/
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│ └── udev.conf
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└── home/
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├── lost+found/
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└── user/
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└── Documents/
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12 directories, 5 files
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```
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12 directories, 5 files
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```
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* A user enters the following commands:
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```
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$ cd /etc/udev
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$ ls -a
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```
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$ cd /etc/udev
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$ ls -a
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```
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```
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* What will be the output of the ls -a command?
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1. Enter the shortest possible command for each of the following:
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* Your current location is root (/). Enter the command to navigate to lost+found within the home directory (example):
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@ -148,23 +148,23 @@ $ ls -a
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* Your current location is /home/user/Documents/. Navigate to the directory named /etc/.
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* Your current location is /etc/systemd/system/. Navigate to the directory named /home/user/.
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1. Consider the following commands:
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```
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$ pwd
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/etc/udev/rules.d
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$ cd ../../systemd/user
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$ cd ..
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$ pwd
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```
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```
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$ pwd
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/etc/udev/rules.d
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$ cd ../../systemd/user
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$ cd ..
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$ pwd
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```
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* What is the output of the final pwd command?
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## Explorational Exercises
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1. Suppose a user has entered the following commands:
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```
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$ mkdir "this is a test"
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$ ls
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this is a test
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```
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```
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$ mkdir "this is a test"
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$ ls
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this is a test
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```
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* What cd command would allow you to enter this directory?
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1. Try this again, but after typing in cd this, press the TAB key. What is now displayed on the prompt?
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* This is an example of autocompletion, which is an invaluable tool not only for saving time, but for preventing spelling errors.
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@ -175,49 +175,49 @@ this is a test
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## Guided Exercises
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1. Use the following file structure to answer the following three questions:
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```
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/
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├── etc/
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│ ├── network/
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│ │ └── interfaces/
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│ ├── systemd/
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│ │ ├── resolved.conf
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│ │ ├── system/
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│ │ ├── system.conf
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│ │ ├── user/
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│ │ └── user.conf
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│ └── udev/
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│ ├── rules.d
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│ └── udev.conf
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└── home/
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├── lost+found/
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├── user/
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│ └── Documents/
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└── michael/
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└── Music/
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```
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```
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/
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├── etc/
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│ ├── network/
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│ │ └── interfaces/
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│ ├── systemd/
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│ │ ├── resolved.conf
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│ │ ├── system/
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│ │ ├── system.conf
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│ │ ├── user/
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│ │ └── user.conf
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│ └── udev/
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│ ├── rules.d
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│ └── udev.conf
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└── home/
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├── lost+found/
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├── user/
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│ └── Documents/
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└── michael/
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└── Music/
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```
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* What command will navigate into the network directory regardless of your current location?
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* What command can user enter to navigate into their Documents directory from /etc/udev? Use the shortest possible path.
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* What command can user enter to navigate into michael 's Music directory? Use the shortest possible path.
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1. Consider the following output of ls -lh to answer the next two questions. Note that directories are indicated with a d at the beginning of the line.
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```
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drwxrwxrwx 5 eric eric 4.0K Apr 26 2011 China/
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-rwxrwxrwx 1 eric eric 1.5M Jul 18 2011 img_0066.jpg
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-rwxrwxrwx 1 eric eric 1.5M Jul 18 2011 img_0067.jpg
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-rwxrwxrwx 1 eric eric 1.6M Jul 18 2011 img_0074.jpg
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-rwxrwxrwx 1 eric eric 1.8M Jul 18 2011 img_0075.jpg
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-rwxrwxrwx 1 eric eric 46K Jul 18 2011 scary.jpg
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-rwxrwxrwx 1 eric eric 469K Jan 29 2018 Screenshot from 2017-08-13 21-22-24.png
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-rwxrwxrwx 1 eric eric 498K Jan 29 2018 Screenshot from 2017-08-14 21-18-07.png
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-rwxrwxrwx 1 eric eric 211K Jan 29 2018 Screenshot from 2018-01-06 23-29-30.png
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-rwxrwxrwx 1 eric eric 150K Jul 18 2011 tobermory.jpg
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drwxrwxrwx 6 eric eric 4.0K Apr 26 2011 Tokyo/
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-rwxrwxrwx 1 eric eric 1.4M Jul 18 2011 Toronto 081.jpg
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-rwxrwxrwx 1 eric eric 1.4M Jul 18 2011 Toronto 085.jpg
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-rwxrwxrwx 1 eric eric 944K Jul 18 2011 Toronto 152.jpg
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-rwxrwxrwx 1 eric eric 728K Jul 18 2011 Toronto 173.jpg
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drwxrwxrwx 2 eric eric 4.0K Jun 5 2016 Wallpapers/
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```
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```
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drwxrwxrwx 5 eric eric 4.0K Apr 26 2011 China/
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-rwxrwxrwx 1 eric eric 1.5M Jul 18 2011 img_0066.jpg
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-rwxrwxrwx 1 eric eric 1.5M Jul 18 2011 img_0067.jpg
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-rwxrwxrwx 1 eric eric 1.6M Jul 18 2011 img_0074.jpg
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-rwxrwxrwx 1 eric eric 1.8M Jul 18 2011 img_0075.jpg
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-rwxrwxrwx 1 eric eric 46K Jul 18 2011 scary.jpg
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-rwxrwxrwx 1 eric eric 469K Jan 29 2018 Screenshot from 2017-08-13 21-22-24.png
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-rwxrwxrwx 1 eric eric 498K Jan 29 2018 Screenshot from 2017-08-14 21-18-07.png
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-rwxrwxrwx 1 eric eric 211K Jan 29 2018 Screenshot from 2018-01-06 23-29-30.png
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-rwxrwxrwx 1 eric eric 150K Jul 18 2011 tobermory.jpg
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drwxrwxrwx 6 eric eric 4.0K Apr 26 2011 Tokyo/
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-rwxrwxrwx 1 eric eric 1.4M Jul 18 2011 Toronto 081.jpg
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-rwxrwxrwx 1 eric eric 1.4M Jul 18 2011 Toronto 085.jpg
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-rwxrwxrwx 1 eric eric 944K Jul 18 2011 Toronto 152.jpg
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-rwxrwxrwx 1 eric eric 728K Jul 18 2011 Toronto 173.jpg
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drwxrwxrwx 2 eric eric 4.0K Jun 5 2016 Wallpapers/
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```
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* When you run the command ls -lrS, what file will be at the beginning?
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* Please describe what you expect to see as the output for ls -ad \*/.
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@ -232,14 +232,14 @@ drwxrwxrwx 2 eric eric 4.0K Jun 5 2016 Wallpapers/
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## Guided Exercises
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1. Given the following, select the directories that would be created by the command mkdir -p /tmp/outfiles/text/today /tmp/infiles/text/today
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```
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$ pwd
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/tmp
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$ find
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.
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./outfiles
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./outfiles/text
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```
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```
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$ pwd
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/tmp
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$ find
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.
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./outfiles
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./outfiles/text
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```
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* /tmp
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* /tmp/outfiles
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* /tmp/outfiles/text
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1. What happens when you use mv to move a directory into itself?
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1. How would you delete all files in your current directory that start with old?
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1. Which of the following files would log_[a-z]\_201?\_\*\_01.txt match?
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```
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log\_3\_2017_Jan_01.txt
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log_+_2017_Feb_01.txt
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log_b_2007_Mar_01.txt
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log_f_201A_Wednesday_01.txt
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```
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```
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log\_3\_2017_Jan_01.txt
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log_+_2017_Feb_01.txt
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log_b_2007_Mar_01.txt
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log_f_201A_Wednesday_01.txt
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```
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1. Create a few globs to match the following list of file names:
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* doc100
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* doc200
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