The passwd file lists the user accounts on a Unix system, along with their user and group ID numbers, their home directory, and the path to the corresponding command or shell.

If you're new to the UNIX operating system, especially if you're familiar with Windows, you'll find that the file access control mechanisms might not be exactly what you expect.

You can make your life a little easier and more productive by adding some Unix power to your Windows system.

IBM's UNIX System Services implements a directory-based file system that is very similar to the file systems used in UNIX. The SAS System under OS/390 enables you to read and write UNIX System ...

To see fragmentation on a Unix system, you would generally use a command such as fsck that reports the percentage of fragmentation on the file system. An example from a fsck output from a Solaris ...

What do these file system and directory names tell us about the intended content? To best understand why particular conventions were adopted, hark back to the early days of Unix and how the ...

Hfsdebug Hfsdebug is a third-party command-line utility that outputs information stored in the file system's catalog and attributes files. To install it, download the precompiled executable from ...

Under UNIX, you can use the FILENAME statement to assign filerefs not only to external files and I/O devices, but also to a pipe. Pipes enable your SAS application to receive input from any UNIX ...

The tr command is useful for removing unnecessary characters from Windows files when converting to Unix format. Remove carriage return and Ctrl-Z characters from a Windows file: ...