Linux in a Nutshell, Fifth Edition

at | 49

Linux

Commands

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--gdwarf2

Generate DWARF2 debugging information.

-o objfile

Place output in object file objfile (default is file.o).

--statistics

Print information on how much time and space assembler uses.

-v Display the version number of the assembler.

-I path

Include path when searching for .include directives.

-J Don’t warn about signed overflow.

-R Combine both data and text in text section.

-W Don’t show warnings.

-Z Generate object file even if there are errors.

at

at [options] time [date]

Execute commands at a specified time and optional date. The

commands are read from standard input or from a file. (See also

batch.) End input with EOF. time can be formed either as a

numeric hour (with optional minutes and modifiers) or as a

keyword. It can contain an optional date, formed as a month and

date, a day of the week, or a special keyword (today or tomorrow).

An increment can also be specified.

The at command can always be issued by a privileged user. Other

users must be listed in the file /etc/at.allow if it exists; otherwise,

they must not be listed in /etc/at.deny. If neither file exists, only a

privileged user can issue the command.

Options

-c job [job...]

Display the specified jobs on the standard output. This option

does not take a time specification.

-d job [job...]

Delete the specified ...