• EPERM
  It's not permitted
  To do the operation
  That you want of me
• ENOENT
  There is no such file
  Or even directory
  By the name supplied
• ESRCH
  I have looked and looked
  But I see no such process
  Anywhere at all
• EINTR
  The last system call
  Was interrupted by me
  I apologize
• EIO
  You can blame input
  Or you can blame the output
  Either way it's bad
• ENXIO
  It tried the device
  And I sought out the address
  But neither are found
• E2BIG
  You are so wordy
  Less verbose would be better
  Arg list is too long
• ENOEXEC
  You cannot run that
  It's not executable
  The format is wrong
• EBADF
  Check the file number
  You are using a bad one
  You will get nowhere
• ECHILD
  It must be barren
  I have determined this fact:
  No child processes
• EAGAIN
  The effort was good
  But the timing was less so
  You must try again
• ENOMEM
  There is a limit
  To what I can remember
  And you have found it
• EACCES
  There are many things
  I will gladly let you do
  But this is not one
• EFAULT
  Care must be taken
  To use only what is yours
  This address is not
• ENOTBLK
  Character is good
  Personality traitwise
  But block belongs here
• EBUSY
  I'd do as you ask
  But others got to me first
  You must wait you're turn
• EEXIST
  Making a new file
  Unique names are important
  That name is not so
• EXDEV
  I can link two files
  If they're on the same device
  But yours are no so
• ENODEV
  I do not wish an
  Existential debate
  About devices
• ENOTDIR
  There are certain times
  That I must insist you give
  directory names
• EISDIR
  Directories are
  sometimes quite acceptable
  but not now my friend
• EINVAL
  The value supplied
  Is clearly not correct, sir
  Please repair your code
• ENFILE
  The table for files
  Is not infinite in size
  It has overflowed
• EMFILE
  Keeping files open?
  You can have many such files
  But not this many
• ENOTTY
  What it is really
  I do not know, but I know
  It's no typewriter
• ETXTBSY
  Others are using
  That which you have requested
  You must wait for it
• EFBIG
  It's such a big file
  That it is too big for me
  I cannot store it
• ENOSPC
  You want so much space
  I do not have it to spare
  You are out of luck
• ESPIPE
  Why do you ask this?
  You cannot seek on a pipe
  You are so foolish
• EROFS
  Try as you might, sir
  Writing is forbidden here
  Says the file system
• EMLINK
  Many links can be made
  But there is a maximum
  Which you have now reached
• EPIPE
  The pipe has broken
  Like milk the data has spilled
  Cry not over it
• EDOM
  Though it is cliche
  That value with that function
  It does not compute
• ERANGE
  What does it look like?
  It's unrepresentable
  Math result unknown
• EDEADLK
  Were it to proceed
  A deadlock of the resource
  Would surely follow
• ENAMETOOLONG
  How long is the name?
  Does it need to be so long?
  I think it's too long
• ENOLCK
  You need record locks
  But none were available
  Unfortunately
• ENOSYS
  Whatever you want
  I cannot supply what is
  Unimplemented
• ENOTEMPTY
  Before proceeding
  The directory must be
  Purged of its contents
• ELOOP
  I am too confused
  When too many links occur
  When finding a file