LuaPosix

Lua Posix

This is a list of the Lua Posix functions. Included is helpful snipets of code. Install lua posix. To get this list do:

bar = require "posix"
for a in pairs(bar) do print(a) end

access

INPUT

• Path- file or directory path that wants to be checked
• Permission - what permissions do you want to check
  • "r" = read
  • "w" = write
  • "x" = execute
  • "f" = all permissions? not sure

OUPUT

• string - 0 for success, nil for failure if done

bar = require "posix"
temp = bar.access("/etc/passwd", "w")
print(temp)

Will give more information like

bar = require "posix"
print(bar.access("/etc/passwd", "w"))
--If nil will give back the error too
nil     /etc/passwd: Permission denied  13

chdir

INPUT

• Path - where do you want to change directory to

OUPUT

• 0 if success
  • nil if failed

bar = require "posix"
bar.chdir("/etc/")
--print(bar.getcwd()) to see where you are

0 if success, nil if failure. If you

print(bar.chdir("/var/lob"))
-- it will print the system error message also
nil     /var/lob: No such file or directory     2

chmod

INPUT

• PATH - where is the file or directory
  • MODE - what mode to you want to change on the file

OUPUT

• string - 0 if sucess, nil failure

bar = require "posix"
bar.chmod("/etc/passwd", "a=rwx")
--looks like you need to use the ugoa format for this, not numbers

wait

---

If you are using this under linux also get