Thoughtbot trail - Unix

You can use these commands and operators:
** |, <, >, >>, &, ack, awk, cat, chmod, chown, cp, export, find, kill, locate, ls, mkdir, mv, ps, rm, sed, sort, tail, top, vim, whereis, xargs.**

Found an awesome index resource!

Piping : | direct the input of one command into the input of another
< Take the input from a file into a command

Take the output of a command into a file

“>>” Take the output of a command and append (add it) to the end of a file.
& Added at the end of a command to run the command in the background
ack : Better than grep; advanced search
AWK : A unix shell scripting language to manipulate the streamed row and column data output given within the terminal
cat : Streams the internal data of one* files and outputs them into the terminal
chmod : Changes the read,write and execute permissions of the specified file
chown : Changes the user or group ownership of the file specified
cp : Copies the specified file into another directory and/or replaced file name
export : Instantiate a temporary shell environment variable
Example –# set vim as a text editor
export EDITOR=/usr/bin/bin
find : Current directory file properties search excluding content
“find . -name foo*bar”
This will search from the current directory down for foo*bar (that is, any filename that begins with foo and ends with bar).
kill : Kills the specified process id
locate : Find patterned files by name in the given directory
ls : List the contents of the specified directory; additional flags can change the required output style
mkdir : Make a folder at the specified location
mv : Move the specified file into the new location; can also be used to rename the file and replace its extension
ps : Give information about the running processes in the active shell
(Can be used with grep to display information about a specific process)
rm : Remove a file; commonly used with the -R flag to recursively remove the files within a given directory
sed : Special shell editor used to perform regular expressions on the specified file
sort : List the files in the specified directory with the required context
tail : Show the last 10 lines of the file
top : Real time process activity details
whereis : States the source location of the given file (Binaries and manual sections)
xargs : Performs the given command with additional flags on the standard input including spaces before the pipe.
fg : If a process is running in the background, fg runs it in the foreground.
bg : If a process is running in the foreground, bg runs it in the background.


Now read this

Notes from The Developer’s Code book

Start from the most interesting task first. We’re allowed to do that as developers, a more realistic timeline can be established once we have practical experience in doing. Only then will we know how much time is accurately required to... Continue →