Linux in a day (Bootcamp)

Create and manage directories on Linux systems using mkdir and cd, creating folders like Linux and auto within a parent folder, and verify changes with the file explorer.

Create files in Linux using touch, cat with redirect, and echo, and edit with vi. Learn to make multiple files at once, populate readme.txt, cars2.txt, and others, then view contents.

Use the mv command to rename files in a folder, locating read.txt in the auto folder and renaming it to readme.txt, then verify the change with ls.

Learn to use the cat command in Linux to display file contents and concatenate multiple files, create new files with cat and redirect, and append data to existing files.

Master the echo command to display text on the console, redirect output into a file, and verify results with cat in bash scripting.

Sort text files using the Linux sort command to arrange lines alphabetically or numerically, reverse with -r, and sort by fields with -k, including combining with pipes like ls -al.

Learn to use head and tail to show the first or last lines of a file, with practical examples on carbrands.txt.

Learn to create and run a shell script on unix-based systems using vi or touch, with a shebang, comments, echo output, and permission via chmod 755.

Learn how to use positional parameters in Linux with the set command, assign values to $1, $2, $3, and print them with echo, including $@, $*, $#, and $$.

Learn to use the if statement with -e and -d to test file and directory, use -gt -lt -eq for comparisons, assign a file variable, and echo results before fi.

Master the bash if statement with the -gt option by comparing a user input to 20 and printing the greater value with echo. See outputs for 10 and 30.

Learn to use the less-than lt (-lt) operator in if statements, change the echo statement to less, and save with :wq after comparing numbers like 30, 20, 90, and 10.

Learn to write a C-style for loop in Linux, using for ( i = 1; i <= 5; i++ ) with do block and echo, save and run to print 1 to 5.

Learn three methods to write bash functions in a script: define with parameters and curly braces, call via ./HelloFunk.sh, and alternate forms using the function keyword or omitting parentheses.