Where’s that binary?
Compiled executable files, called binary files, or just binaries, can be located in a number of places in an FHS-compliant filesystem. However, it’s easy to become a little confused over why a particular executable file is placed where it is in the FHS. This is particularly true for bin and sbin directories, which appear in multiple locations. Table 7-7 lists these directories and shows how each is used.
Type of file
System administration commands
Vendor-supplied, essential (root filesystem)
Vendor-supplied, nonessential (/usr filesystem)
Locally supplied, nonessential (/usr filesystem)