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linux adventures

command line 101

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command line 101 (aka sh, bash, cmd, terminal)

1. [00:00] {navigation}
1. ] cd
2. ] ls
2. [00:00] {files + directories}
1. ] cp - copy files or directories
2. ] mv - move files or directories
3. ] mkdir - create directories
4. ] rmdir - delete directories
5. ] touch - used to create files
6. ] rm - deletes files 
7. ] tar - create archives
8. ] pwd - path working directory
9. ] grep
10. ] tail
11. ] 
12. *] SRC = 1
3. [00:00] EXAMPLE - use ">" to save program output to file
1. ] sensors > {path}/temperatures.txt
4. [00:00] EXAMPLE use ">>" to append program output to a file 
1. ] sensors >> {path}/temperatures.txt
5. [LIST]
1. ] {navigation} -
2. ] bash - a better shell program
3. ] cron - task scheduler
4. ] grep - search files for 'words'  
1. https://www.howtoforge.com/tutorial/linux-grep-command/
5. ] man - documentation of programs
6. ] sudo -

1. ] https://cmdchallenge.com - 
1. ] hello_world - echo "hello world!" 
2. ] get_current_working_directory = pwd
3. ] count_files =  /var/count_files/ | 
1. *note = case sensitive, note=include preceeding and trailing / slashes in path
2. http://stackoverflow.com/questions/20895290/count-number-of-files-within-a-directory-in-linux-not-using-wc
4. ] list_files - ls
5. ] print_file = cat {filename}
6. ] print_file_portion = tail {filename} -n5 (print the last 5 lines of the file)
7. ] grep 'GET' in access.log - find text 'GET" in file, *case sensitive
8. ] grep -r 'string' /path/ - find all files in directory that contain text
2. ] https://explainshell.com - 
1. ] 
3. ] more cmd help
1. ] {cmd} --help OR -h to get help on a command
2. ] https://www.howtogeek.com/108890/how-to-get-help-with-a-command-from-the-linux-terminal-8-tricks-for-beginners-pros-alike/

 

 

 

Details

ID: 7208

NAME: PROJECT-linux-adventures-101-command-line

DESCRIPTION: ] using linux 101 - entry level usage of the Linux operating system through the eyes of a long time windows user - command line (aka) terminal

START DATE TIME: 2015-05-17 08:00:00

EST DURATION: 01:00:00

END DATE TIME: 2015-05-17 09:00:00

STATUS: Completed

PRIORITY: -5

OWNER ID: 75

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