Differential D25774 Diff 74801 usr.bin/truncate/truncate.1

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usr.bin/truncate/truncate.1

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	redirection syntax, or			redirection syntax, or
	.Xr dd 1 .			.Xr dd 1 .
	.Sh EXIT STATUS			.Sh EXIT STATUS
	.Ex -std			.Ex -std
	If the operation fails for an argument,			If the operation fails for an argument,
	.Nm			.Nm
	will issue a diagnostic			will issue a diagnostic
	and continue processing the remaining arguments.			and continue processing the remaining arguments.
				.Sh EXAMPLES
				Adjust the size of the file
				.Pa test_file
				to 10 Megabytes but do not create it if it does not exist:
				.Bd -literal -offset indent
				truncate -c -s +10M test_file
				.Ed
				.Pp
				Same as above but create the file if it does not exist:
				.Bd -literal -offset indent
				truncate -s +10M test_file
				ls -l test_file
				-rw-r--r-- 1 root wheel 10485760 Jul 22 18:48 test_file
				.Ed
				.Pp
				Adjust the size of
				.Pa test_file
				to the size of the kernel and create another file
				.Pa test_file2
				with the same size:
				.Bd -literal -offset indent
				truncate -r /boot/kernel/kernel test_file test_file2
				ls -l /boot/kernel/kernel test_file*
				-r-xr-xr-x 1 root wheel 31352552 May 15 14:18 /boot/kernel/kernel*
				-rw-r--r-- 1 root wheel 31352552 Jul 22 19:15 test_file
				-rw-r--r-- 1 root wheel 31352552 Jul 22 19:15 test_file2
				.Ed
				.Pp
				Downsize
				.Pa test_file
				in 5 Megabytes:
				.Bd -literal -offset indent
				# truncate -s -5M test_file
				ls -l test_file*
				-rw-r--r-- 1 root wheel 26109672 Jul 22 19:17 test_file
				-rw-r--r-- 1 root wheel 31352552 Jul 22 19:15 test_file2
				.Ed
	.Sh SEE ALSO			.Sh SEE ALSO
	.Xr dd 1 ,			.Xr dd 1 ,
	.Xr touch 1 ,			.Xr touch 1 ,
	.Xr truncate 2			.Xr truncate 2
	.Sh STANDARDS			.Sh STANDARDS
	The			The
	.Nm			.Nm
	utility conforms to no known standards.			utility conforms to no known standards.
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