Linux/ls

ls
List all files: ls -la

Reverse sort: ls -lr

Color: (dir blue, folders white) ls --color

Time: ls -lt ls -ltr

-c    with  -lt:  sort by, and show, ctime (time of last modification of file status information) with -l: show ctime and sort by name otherwise: sort by ctime

-t    sort by modification time

-u    with -lt: sort by, and show, access time with -l: show access time and sort by name otherwise: sort by access time

--full-time like -l --time-style=full-iso

--time=WORD with -l, show time as WORD instead of modification time: atime -u, access -u, use -u, ctime -c, or status -c; use specified time  as  sort key if --sort=time

--time-style=STYLE with -l,  show  times  using  style STYLE: full-iso, long-iso, iso, locale, +FORMAT. FORMAT is interpreted like ‘date’; if FORMAT is FORMAT1 FORMAT2, FORMAT1 applies to non-recent files and FORMAT2 to recent files; if STYLE is prefixed  with  ‘posix-’, STYLE takes effect only outside the POSIX locale

The times on files are: File: `sampledir/' Size: 4096           Blocks: 8          IO Block: 4096   directory Device: 900h/2304d     Inode: 20447317    Links: 2 Access: (0755/drwxr-xr-x) Uid: ( 1123/   23aaa)   Gid: ( 1123/   23aaa) Access: 2010-11-29 15:30:01.000000000 -0700 Modify: 2010-05-19 08:00:01.000000000 -0600 Change: 2010-05-19 08:00:01.000000000 -0600