Print the current date and time. You may specify a display format. format can consist of literal text strings (blanks must be quoted) as well as field descriptors, whose values will appear as described in the following entries (the listing shows some logical groupings). A privileged user can change the system’s date and time.
Display current date in a nonstandard format. For example:
date +"%A %j %n%k %p"Tuesday 248 15 PM
The default is %a %b %e %T %Z %Y (e.g., Tue Sep 5 14:59:37 EDT 2000).
Display date, which should be in quotes and may be in the format d days or m months d days to print a date in the future. Specify ago to print a date in the past. You may include formatting (see the following section).
Like -d, but printed once for each
Display in ISO-8601 format. If specified, timespec can have one of the values date (for date only), hours, minutes, or seconds to get the indicated precision.
Display the time file was last modified.
Display the date in RFC 822 format.
Print help message and exit.
Print version information and exit.
Set the date.
Set the date to Greenwich Mean Time, not local time.
The exact result of many of these codes is locale-specific and depend upon your language setting, particularly the ...