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Added more sublessons, restructured existing lessons to combine the same commands into the same sublessons.

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William Brawner 2016-07-01 18:54:23 -05:00
parent 4f147329db
commit ecf15e71e9
1 changed files with 131 additions and 29 deletions
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160
bash-tutor.sh
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@ -3,9 +3,14 @@
# First, we'll define some paths to programs that we'll need. This is good
# practice for security and it also arguably keeps the script clean
CP=/usr/bin/cp
ECHO="echo -e"
LS="/usr/bin/ls --color=auto"
MKDIR=/usr/bin/mkdir
MV=/usr/bin/mv
RM=/usr/bin/rm
SLEEP=/usr/bin/sleep
TOUCH=/usr/bin/touch
# Next, we'll simplify the mini-quizzes by wrapping them in a function. The
# idea behind this is to provide a safe environment for the learner to run
@ -13,6 +18,7 @@ SLEEP=/usr/bin/sleep
function test_command
{
# Usage: test_command <hint> <command to run>
while true; do
read -p "$TUTOR_PROMPT" command
case $command in
@ -24,6 +30,7 @@ function test_command
function save_progress
{
# Usage: save_progress <user> <tutor prompt> <progress>
cat <<EOF > ~/.bash_tutor_progress
USER=$1
TUTOR_PROMPT="$2"
@ -108,21 +115,17 @@ information on each of the files and directories. Try it now:\n";
$SLEEP 2;
save_progress $USER "$TUTOR_PROMPT" "1.2";
;&
"1.2")
$ECHO "\nDon't worry about what all of this means right now. We'll \
cover it later. For now, you can practice some other flags. A good one to \
remember is the --help flag, which usually provides you with a list of \
options you can use. This is sometimes shortened to just -h. For now though, \
let's talk about arguments.";
options you can use. This is sometimes shortened to just -h. Try it now.";
test_command "ls -h" "$LS -h";
$SLEEP 2;
$ECHO "Arguments are additional pieces of information that you can give to a \
command that usually changes the location of where the command is run. For \
command that usually change the location of where the command is run. For \
example, running the 'ls' command as we did before lists the contents of the \
current directory we are in. If you supply ls with a file or folder on the \
system though, it will print out that file's name or that folder's contents. \
@ -130,11 +133,8 @@ Try running 'ls' on the '/' directory.\n";
test_command "ls /" "$LS /";
save_progress $USER "$TUTOR_PROMPT" "1.3";
$SLEEP 2;
;&
"1.3")
$ECHO "\nWhat you're looking at is the root directory of your \
system. This is basically what holds all of the files and folders that run \
the Linux operating system. We'll go over what each folder is for in a later \
@ -142,27 +142,17 @@ lesson.";
$SLEEP 2;
$ECHO "Being able to look at these different folder contents is nice, but \
sometimes you may need to be able to move around into different folders \
for easier access to your files. To do this, you use the 'cd' command. Try
running it now, without any options or arguments.\n";
$SLEEP 2;
test_command "cd" "cd";
$ECHO $TUTOR_PROMPT;
save_progress $USER "$TUTOR_PROMPT" "1.4";
save_progress $USER "$TUTOR_PROMPT" "1.2";
;&
"1.4")
$SLEEP 2;
"1.2")
$ECHO "Being able to look at different folder contents is nice, but \
sometimes you may need to be able to move around into different folders \
for easier access to your files. To do this, you use the 'cd' command. Try
running it now, and change to the /etc directory.\n";
$ECHO "\nThe 'cd' command, without any arguments, brings you back to \
your home directory. Since you were already there, nothing really happened. \
Try running 'cd' on the /etc directory to see what happens then.\n";
$SLEEP 2;
test_command "cd /etc" "cd /etc";
@ -170,6 +160,44 @@ Try running 'cd' on the /etc directory to see what happens then.\n";
$ECHO $TUTOR_PROMPT;
$SLEEP
$ECHO "\nThe 'cd' command, without any arguments, brings you back to \
your home directory. Try it now.\n";
test_command "cd" "cd";
TUTOR_PROMPT="$USER@bash-tutor ~ \$ ";
$ECHO $TUTOR_PROMPT;
$SLEEP 2;
save_progress $USER "$TUTOR_PROMPT" "1.3";
;&
"1.3")
$ECHO "\nWhen you move around a lot, you may forget where you are. \
Luckily, there's a command for situations just like that. 'pwd' is what \
you'll be looking for. You can remember it as 'print working directory', if \
that helps. Try running it now.\n";
test_command "pwd" "pwd";
$SLEEP 2;
save_progress $USER "$TUTOR_PROMPT" "1.4";
;&
"1.4")
$ECHO "\nNow we'll get into creating files and directories. We'll \
start with the 'touch' command. The 'touch' command allows you to create an \
empty file. Try using it now to create a file called 'file1.txt' now.\n";
test_command "touch file1.txt" "$TOUCH file1.txt";
$SLEEP 2;
save_progress $USER "$TUTOR_PROMPT" "1.5";
@ -177,6 +205,80 @@ Try running 'cd' on the /etc directory to see what happens then.\n";
;&
"1.5")
$ECHO "\nOnce you've created a file, it's also helpful to be able \
to copy it. To do this, you use the 'cp' command. 'cp' takes two arguments by \
default, first the original file, and then the new copy. Try copying \
'file1.txt' to a new file named 'file2.txt'.\n";
test_command "cp file1.txt file2.txt" "$CP file1.txt file2.txt";
$SLEEP 2;
save_progress $USER "$TUTOR_PROMPT" "1.6";
;&
"1.6")
$ECHO "\nDirectories can be created with the 'mkdir' command. Try \
creating a directory called 'test' now.\n";
test_command "mkdir test" "$MKDIR test";
$SLEEP 2;
save_progress $USER "$TUTOR_PROMPT" "1.7";
;&
"1.7")
$ECHO "\nYou can also move files around from the command line. \
To do this, you use the 'mv' command. Try moving 'file1.txt' into the 'test/' \
directory. Directories are usually appended with a '/'.\n";
test_command "mv file1.txt test/" "$MV file1.txt test/";
$SLEEP 2;
$ECHO "\n'mv' is also useful for renaming files from the command \
line. This also takes two arguments, in the same way that 'cp' does. Try \
renaming 'file2.txt' to 'file3.txt' now.\n"
test_command "mv file2.txt file3.txt" "$MV file2.txt file3.txt";
$SLEEP 2;
save_progress $USER "$TUTOR_PROMPT" "1.8";
;&
"1.8")
$ECHO "\nLet's not leave all of these test files lying around. \
To delete files from the command line, you use the 'rm' command. Be very \
careful with this though, because once a file is deleted from the command \
line, it's gone forever. At the very least it is very expensive to recover. \
For this tutorial though, you're safe. Go ahead and delete 'file3.txt' now.\n";
test_command "rm file3.txt" "$RM file3.txt";
$SLEEP 2;
$ECHO "\nDeleting directories requires the '-r' option. I usually \
like to add the '-f' flag with this as well, because otherwise 'rm' will ask \
you to confirm each file deletion. When you pass multiple options in the same \
command, you can put them together with the same hyphen. Try running 'rm with \
both the 'r' and 'f' flags on the test directory..\n";
test_command "rm -rf test" "$RM -rf test";
$SLEEP 2;
save_progress $USER "$TUTOR_PROMPT" "2.0";
;&
"2.0")
$ECHO "\nCongrats on completing the first part of the tutorial!\n"
$ECHO "\nYou've reached the end of the tutorial, for now. Check \
back on either the GitHub page for this project, or my personal blog at \
https://wbrawner.com/blog, where I will also be posting updates, to see if \