What is the date command used for?
What will be an ideal response?
The UNIX/Linux date command displays the system date, which the system administrator maintains. Because the date and time on a multiuser system are critical for applications, only the system administrator can change the date. For example, the Accounting Department might need to associate a date with a specific file used for reporting tax information, or the Publications Department might have to date stamp a document to ensure a specific copyright date.
The date command has an option,-u,which displays the time in Greenwich Mean Time (GMT).
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Which water treatment method uses a pump to supply a desired chemical to the water at a rate proportional to the system flow?
a. neutralizing tank b. chemical feeder c. ozone injection d. diatomaceous earth filter
In an offset section, instead of the part being divided with a single flat cutting plane, the cutting surface is ____________________.
Fill in the blank(s) with the appropriate word(s).
Arc strikes outside of the weld groove ____.
A. will crack as the pipe expands and contracts with heat B. form hardness spots which strengthen the weld C. should be made as often as possible D. increase pipe durability by increasing the pipe flexibility around the weld area
The formula for calculating the CFM needed to produce an air change is
A) CFM = (floor area × ceiling height) / 8 B) CFM = (floor area × ceiling height) / 60 C) CFM = floor area × ceiling height D) CFM = (floor area × ceiling height) / 12