Merge pull request JaiMaaSheeravali#27 from JaiMaaSheeravali/tut_content

"final-tut-content"

tutorial/tutorial_cmd/basiccmdlist.txt

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+cd
+to go to different directory
+ls
+to list directory contents
+man
+display manual pages
+mv
+Move or rename files and directories
+mkdir
+Creates a directory
+rmdir
+Removes a directory
+touch
+Change a file access and modification times   

tutorial/tutorial_cmd/cat.txt

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+cat {{file}}
+Print the contents of a file to the standard output
+cat {{file1}} {{file2}} > {{target_file}}
+Concatenate several files into the target file
+cat {{file1}} {{file2}} >> {{target_file}}
+Append several files into the target file
+cat -n {{file}}
+Number all output lines:
+

tutorial/tutorial_cmd/cd.txt

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+cd path/to/directory  
+command to Go to the given directory
+cd 
+command to go to home directory of current user
+cd ..
+Go up to the parent of the current directory
+cd -  
+Go to the previously chosen directory

tutorial/tutorial_cmd/chmod.txt

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+chmod u+x {{file}}
+Give the [u]ser who owns a file the right to e[x]ecute it
+chmod u+rw {{file_or_directory}}
+Give the [u]ser rights to [r]ead and [w]rite to a file/directory
+chmod g-x {{file}}
+Remove e[x]ecutable rights from the [g]roup
+chmod a+rx {{file}}
+Give [a]ll users rights to [r]ead and e[x]ecute
+chmod o=g {{file}}
+give [o]thers (not in the file owner's group) the same rights as the [g]roup
+chmod o= {{file}}
+Remove all rights from [o]thers
+chmod -R g+w,o+w {{directory}}
+Change permissions recursively giving [g]roup and [o]thers the ability to [w]rite
+

tutorial/tutorial_cmd/echo.txt

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+echo "{{Hello World}}"
+Print a text message. Note: quotes are optional
+echo "{{My path is $PATH}}"
+Print a message with environment variables
+echo -n "{{Hello World}}"
+Print a message without the trailing newline
+echo "{{Hello World}}" >> {{file.txt}}
+Append a message to the file
+echo -e "{{Column 1\tColumn 2}}"
+Enable interpretation of backslash escapes (special characters):
+

tutorial/tutorial_cmd/git.txt

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+git config –global user.name “[name]”
+sets the author name to be used with your commits
+git config –global user.email “[email address]”  
+sets the email address to be used with your commits
+git init [repository name]
+to start a new repository
+git clone [url]
+to obtain a repository from an existing URL
+git add [file]
+adds a file to the staging area
+git add * 
+adds one or more to the staging area.
+git commit -m “[ Type in the commit message]”
+records or snapshots the file permanently in the version history
+git commit -a
+commits any files you’ve added with the git add command and also commits any files you’ve changed since then
+git diff –staged
+shows the differences between the files in the staging area and the latest version present
+git reset [file]  
+command unstages the file, but it preserves the file contents
+git reset [commit]  
+command undoes all the commits after the specified commit and preserves the changes locally
+git status  
+command lists all the files that have to be committed.
+git log  
+command is used to list the version history for the current branch.
+git branch  
+lists all the local branches in the current repository
+git checkout [branch name]  
+command is used to switch from one branch to another
+git merge [branch name]  
+merges the specified branch’s history into the current branch.
+git remote add [variable name] [Remote Server Link]  
+command is used to connect your local repository to the remote server
+git push [variable name] master
+sends the committed changes of master branch to your remote repository
+git push [variable name] [branch]  
+command sends the branch commits to your remote repository
+git push –all [variable name]  
+command pushes all branches to your remote repository
+git pull [Repository Link]  
+command fetches and merges changes on the remote server to your working directory
+

tutorial/tutorial_cmd/grep.txt

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+grep "{{search_pattern}}" {{path/to/file}}
+Search for a pattern within a file
+grep --fixed-strings "{{exact_string}}" {{path/to/file}}
+Search for an exact string (disables regular expressions)
+

tutorial/tutorial_cmd/intermediatecmdlist

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+Cat
+Print and concatenate files
+echo
+Print given arguments
+chmod
+Change the access permissions of a file or directory
+grep
+Find patterns in files using regular expressions
+sort
+Sort lines of text files
+hostnamectl
+to find hostname
+git
+used while working with git

tutorial/tutorial_cmd/intermediatecmdlist.txt

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+Cat
+Print and concatenate files
+echo
+Print given arguments
+chmod
+Change the access permissions of a file or directory
+grep
+Find patterns in files using regular expressions
+sort
+Sort lines of text files
+hostnamectl
+to find hostname
+git
+used while working with git

tutorial/tutorial_cmd/ls.txt

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+ls  
+ls command is used to list directory contents
+ls -1  
+List files one per line
+ls -a  
+List all files, including hidden files
+ls -F  
+List all files, with trailing / added to directory names
+ls -la 
+Long format list (permissions, ownership, size, and modification date) of all files

tutorial/tutorial_cmd/man.txt

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+man {command} 
+Display the man page for a command

tutorial/tutorial_cmd/mkdir.txt

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+mkdir {{directory}}  
+Create a directory in current directory or given path

tutorial/tutorial_cmd/mv.txt

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+mv {{source}} {{target}}
+Move files in arbitrary locations
+mv -f {{source}} {{target}} 
+Do not prompt for confirmation before overwriting existing files
+mv -i {{source}} {{target}} 
+Prompt for confirmation before overwriting existing files, regardless of file permissions

tutorial/tutorial_cmd/pipe and redirections.txt

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+command_1 | command_2 | command_3 | .... | command_N
+to pass output of one command acts as input to another command

tutorial/tutorial_cmd/rmdir.txt

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+rmdir {{path/to/directory}} 
+to remove directory *use rm-r to remove empty directory*
+rmdir -p {{path/to/directory}}  
+Remove the target and its parent directories (useful for nested dirs)

tutorial/tutorial_cmd/sort.txt

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+sort {{path/to/file}}
+Sort a file in ascending order
+sort --reverse {{path/to/file}}
+Sort a file in descending order
+sort --ignore-case {{path/to/file}}
+Sort a file in case-insensitive way
+sort --numeric-sort {{path/to/file}}
+Sort a file using numeric rather than alphabetic order
+

tutorial/tutorial_cmd/touch.txt

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+touch {{filename}}  
+Create a new empty file(s) or change the times for existing file(s) to current time
+touch -t {{YYYYMMDDHHMM.SS}} {{filename}} 
+Set the times on a file to a specific date and time
+touch -r {{filename}} {{filename2}}   
+Use the times from a file to set the times on a second file
+