09-15-2005
sort data
Hi!
I'm trying to sort a file.dat with the sort command. The data contained by file.dat is similar to the data set below:
100.000
99.000
110.000
55.000
113.000
33.000
25.000
9.000
15.000
It is relatively easy to sort the data in ascending or descending order, but the problem is that the separating empty rows between the blocks are put on top of the sorted file. I wish to keep the empty rows and sort the data blocks separately, like this:
99.000
100.000
110.000
33.000
55.000
113.000
9.000
15.000
25.000
Can anybody please help me?
And also I must mention that I'm quite new at UNIX scripting, so try to explain in plain English
!
bjorb
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LEARN ABOUT NETBSD
usleep
USLEEP(3) BSD Library Functions Manual USLEEP(3)
NAME
usleep -- suspend execution for interval of microseconds
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
int
usleep(useconds_t microseconds);
DESCRIPTION
The usleep() function suspends execution of the calling process until either the number of microseconds specified by microseconds have
elapsed or a signal is delivered to the calling process and its action is to invoke a signal catching function or to terminate the process.
The suspension time may be longer than requested due to the scheduling of other activity by the system.
The microseconds argument must be less than 1,000,000. If the value of microseconds is 0, then the call has no effect.
RETURN VALUES
On successful completion, usleep() returns 0. Otherwise, it returns -1 and sets errno to indicate the error.
ERRORS
The usleep() function may fail if:
[EINVAL] The microseconds interval specified 1,000,000 or more microseconds.
SEE ALSO
nanosleep(2), sleep(3)
STANDARDS
The usleep() function conforms to X/Open Portability Guide Issue 4, Version 2 (``XPG4.2''). It later appeared in the POSIX standard, but in
IEEE Std 1003.1-2004 (``POSIX.1'') it was marked as legacy and the use of nanosleep(2) was recommended instead. The IEEE Std 1003.1-2008
(``POSIX.1'') revision removed usleep() from the specification.
HISTORY
The usleep() function appeared in 4.3BSD.
BSD
April 29, 2010 BSD