Solaris Volume Manager can make easy work of mirroring your root file system, but you have to use the right commands in the right sequence to make easy work of this task. In this week’s column, we’ll ...

Unix permissions control who can read, write or execute a file. You can limit it to the owner of the file, the group that owns it or the entire world. For security reasons, files and directories ...

Unix systems provide numerous ways to compare files. The most common way to verify that you have received or downloaded the proper file is to compute a checksum and compare it against one computed by ...

Head and tail are great commands when you want to look only at the beginning or the ending of files. Getting a feel for how the lines in a file are changing over time, on the other hand, can take a ...