Shell, I/O Redirections and filters Project done during Full Stack Software Engineering studies at Holberton School. It aims to learn about how to handle standard input and output and how to combine commands and filters with redirections in Shell.
Technologies Scripts written in Bash 4.3.11(1) Tested on Ubuntu 14.04 LTS Files All of the following files are scripts:
Filename Description 0-hello_world Prints "Hello, World", followed by a new line to the standard output 1-confused_smiley Displays a confused smiley "(Ôo)' 2-hellofile Displays the content of the /etc/passwdfile 3-twofiles Displays the content of /etc/passwd and /etc/hosts 4-lastlines Displays the last 10 lines of /etc/passwd 5-firstlines Displays the first 10 lines of /etc/passwd 6-third_line Displays the third line of the file iacta 7-file Creates a file named exactly *'"Holberton School"'*$?*****:) containing the test Holberton School ending by a new line 8-cwd_state Writes into the file ls_cwd_content the result of the command ls -la. 9-duplicate_last_line Duplicates the last line of the file iacta 10-no_more_js Deletes all the regular files with a .js extension that are present in the current directory and all its subfolders 11-directories Counts the number of directories and sub-directories in the current directory 12-newest_files Displays the 10 newest files in the current directory 13-unique Takes a list of words as input and prints only words that appear exactly once 14-findthatword Displayes lines containing the pattern "root" from the file /etc/passwd 15-countthatword Displays the number of lines that contain the pattern "bin" in the file /etc/passwd 16-whatsnext Displays lines containing the patter "root" and 3 lines after them in the file /etc/passwd 17-hidethisword Displays all the lines in the file /etc/passwd that do not contain the pattern "bin" 18-letteronly Displays all lines of the file /etc/ssh/sshd_config starting with a letter 19-AZ Replaces all characters A and c from input to Z and e respectively 20-hiago Removes all letters c and C from input 21-reverse Reverses its input 22-users_and_homes Displays all users and their home directories, sorted by users 100-empty_casks Finds all empty files and directories in the current directory and all sub-directories 101-gifs Lists all the files with a .gif extension in the current directory and all its sub-directories 102-acrostic Decodes acrostics that use the first letter of each line 103-the_biggest_fan Parses web servers in TSV format as input and displays the 11 hosts or IP addresses which did the most requests