Cacher is the code snippet organizer for pro developers

Basic

• Ctrl + C to cancel command
• Ctrl + A to move the cursor to the beginning of the line
• Ctrl + E to move the cursor to the end of the line
• Ctrl + U to clear the line to the beginning
• Opt + Click to move the cursor to the desired location
• clear or Ctrl + L to scroll up to clear the screen
• Cmd + K to clear the screen
• exit or Ctrl + D to exit the current session
• Ctrl + A and Ctrl + K to delete the current line in the terminal

Writing and reading files

• echo "Hello, world" > sample.txt is used to set the contents of sample.txt to Hello, world
• echo "Hello, world" >> sample.txt is used to append Hello, world to the contents of sample.txt
• cat sample.txt is used to display the contents of sample.txt
• head sample.txt is used to display the first 10 lines of sample.txt
• tail sample.txt is used to display the last 10 lines of sample.txt
• diff sample.txt sample2.txt is used to display the difference in contents between the specified files
• less sample.txt is used to view sample.txt in a more interactive way
• /search is used to search for a substring when viewing files using less
• n or N is used to find the next or previous match respectively when searching using less
• grep substring filename -i is used to search for substring in filename. -i represents case-insensitivity
• grep -ri substring directory/ is used to serach for substring in all files recursively found in the directory directory

List files

• ls *.txt is used to display all files ending in .txt in the current directory
• ls -l is used to display all files with additional information such as size, permissions, etc
• ls -r is used to reverse the order in which the files are displayed
• ls -t is used to display most recently modified files first
• ls -a is used to display all files (i.e. visible and hidden files)
• ls -d is used to display all directories
• pwd prints working directory
• find . -name "*.txt" is used to display all files ending in .txt in the current directory

Rename, move, remove and copy files and folders

• mv currentFileName newFileName is used to rename a file
• cp file.txt file-copy.txt is used to copy a file
• rm filename is used to remove a file
• rm -f is used to force remove a file without prompting for confirmation
• mv *.txt text_files/ is used to move all files ending in .txt to the directory text_files
• cp filename . is used to copy filename to the current directory
• cp -r ../text_files . is used to copy the directory text_files to the current directory. -r means recursively.
• cp - r ../text_files/ . or cp -r ../text_files/* . is used to copy the contents of text_files to the current directory
• rmdir directoryname is used to remove an empty directory
• rm -rf directoryname/ is used to remove a directory

Misc

• tab is used to auto complete file names
• tab + tab is used to display all the possible auto complete options
• !! is used to run the previous command
• !curl is used to run the previous command starting with curl
• Ctrl + R is used to interactively search for previously ran commands
• wc filename is used to display word count information
• | is used to connect two commands (e.g. head sample.txt | wc)
• cd - is used to navigate back to the previous directory
• ; is used to seperate multiple commands
• && is used to seperate multiple commands but only executes a command if the previous command was successful
• man command is used to display a manual for command

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