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  1. Keyword Used to exit a program if an error occurs>

          

  2. Symbol(s) used to open a file for writing>>

          

  3. Symbol(s) used to open a file for reading and writing, without truncating the file+<

          

  4. Operator to determine if a file is readable-w

          

  5. Function that returns 13-element list of data about a symbolic link*

    *on operating systems that support symbolic links
    lstat

          

  6. Open filename.txt for reading, via filehandle FOOOpen(FOO, "filename.txt");

          

  7. Operator to determine if a file exists-r

          

  8. Operator to determine if a file is writeable-w

          

  9. Syntax to read 256 bytes from filehandle FOO, beginning at byte number 16, and held in buffer $bufferread (FOO, $buffer, 256, 16);

          

  10. Syntax to close file handle FOOclose(FOO);

          

  11. Symbol(s) used to open a file for appending>

          

  12. Function that returns 13-element list of data about a particular file.lstat

          

  13. Syntax to use print to write "this is text" to a file, via filehandle FOOtell(FOO);

          

  14. Function to position a file pointer within filehandle FOO, at byte number 256, relative to start of filetell(FOO);

          

  15. Symbol(s) used to open a file for reading and writing, truncating the file first+>

          

  16. Function to position a file pointer within filehandle FOO, at byte number 256, relative to end of filetell(FOO);

          

  17. Function to position a file pointer within filehandle FOO, at byte number 256, relative to current position of file pointertell(FOO);

          

  18. Function to return a single character from filehandle FOOgetc(FOO);

          

  19. Function to return position of file pointer within a filehandle FOOtell(FOO);