Which options would you need to provide to the ls command in order to see more detailed information about the files in a directory including any hidden ones with file sizes displayed in KB MB GB etc?
8. How to display detailed information about files and directories. The ls command can also print detailed information about files and directories. To enable this output format (also known as long listing format), you need to use the -l command-line option.
Does du report in bytes?
Usage notes du computes file space in units of 512 bytes. The actual disk space that is used by files and directories might be more, since some systems allocate space in units of some multiple of a sector.
What is du measured in?
Usage notes du computes file space in units of 512 bytes. The actual disk space used by files and directories may be more, since some systems allocate space in units of some multiple of a sector. On UNIX System V, it is usually two sectors; on UNIX Version 7, it is one sector.
Which is correct LS or du file size?
They are all correct, they just show different sizes. ls shows size of the file (when you open and read it, that’s how many bytes you will get) du shows actual disk usage which can be smaller than the file size due to holes.
How does du-s find the total value of a file?
du -s traverses the file tree, adding up the number of blocks allocated to each directory, symlink, and file as reported by the stat () system call. This is how du arrives at its total value.
Why do the numbers from ” Du-s and DF ” differ?
If someone is running an application with a file open in a directory and the open file is removed, the du output reflects a reduced size for this directory. However, df does not show a reduced size because all blocks in the file system remain allocated until the application that has the file open closes the file.
What’s the difference between Du and DF in Aix?
The document applies to AIX Versions 5L and above. Notice du and df report on only the blocks allocated for data actually written. The ls command reports slightly different results depending on the type of file. See the section in this document, “The ls command ” . NOTE: Both df and du default to 512-byte units.