Computercraft Tutorial - Section 9 - File System

--This is part of a Computercraft Programming Teaching Program

tSides = {"left","right","bottom","top","front","back"}

for i = 1, #tSides do
  monitor = peripheral.wrap(tSides[i])
  if monitor then
        side = tSides[i]
        break
  end
end
--Prevents program termination
os.pullEvent = os.pullEventRaw
term.redirect(peripheral.wrap(side))

-- Resets Screen
function reset()
term.setTextColor(colors.white)
term.setBackgroundColor(colors.black)
term.clear()
term.setCursorPos(1,1)
end

reset()
print("Section 9 - File System \n ")
print("These commands are used to edit/create/delete files on the computer from within the program.")
print("Some uses for these can be record keeping, program config files, making a database, etc.")
print(" ")
print("file1 = fs.open(\"file\", \"a\") - uses \"file1\" as a handle for the file \"file\"")
print("Notice the \"a\" at the end. That set the file mode to append. That means writing to the file will add onto it.")
print("Other file modes are \"r\" - Read Only, and \"w\" - write. Write mode overwrites a file with new data.")
print("fs.exists(\"<file path>\") - Returns a boolean value if the file exists or not. Can be used as a condition for loops and statements")
print("if fs.exists(\"file\") == true then <--- Example Usage")
print("file1.write(\"test\") - Writes \"test\" to the file \"file\"")
print("file1.writeLine(\"test\") - Same as fs.write(), except it makes a new line after")
print("Think of fs.write() as write() and fs.writeLine() as print()")
term.restore()