Means sda1: sd (major 8 → SCSI), a1 (minor 1 → first disk, first partition). Partitions on the second disk have a minor ID between 17 and 31, and so on. ![]() Partitions on the first disk have a minor ID between 1 and 15. Use this information to estimate the mean number of years worked in. In case of SCSI disks, the major ID is always 8. Use the STAT, CALC, 1-Var Stats command to find summary statistics such as mean. The major ID identifies the device driver, the minor ID encodes the physical disk as well as the partition. Use the STAT, CALC, 1-Var Stats command to find summary statistics such as. File management is an important part of computing and analysis. How to Find a Five Number Summary on a TI-84 Calculator This video shows you. For example, to read a file off the floppy drive, the user specifies READ A:MYFILE. To override the default temporarily, the user specifies the full drive path when issuing a command. > major = int(os.stat("/lib").st_dev > 8 & 0xff) Epi Info usually defaults to C:EPI6 unless this has been overridden by the system manager. StatCalc is a tool that automatically generates a range of sample sizes for different confidence and precision levels. > minor = int(os.stat("/lib").st_dev & 0xff) 1 StatCalc - Calculating a Sample Size with Epi-Info In this lesson, you will learn how to use the StatCalc feature of Epi-Info to calculate the sample size of a study you may design. The C implementation of these macros is: #define major(dev) ((int)(((unsigned int) (dev) > 8) & 0xff)) These macros are not defined by POSIX, but implemented in glibc, in sysmacros.h. Major(3) and minor(3) macros may be useful to decompose the device ID The st_dev field describes the device on which this file resides. ![]() Pax$ ls -al /dev/sda1 # to get major/minor = 8/1īrw-rw- 1 root disk 8, 1 07:02 /dev/sda1 Here's an example: pax$ stat newfile # note device 801h, hex 801 = 2049 decimal If you were to then do ls -al /dev/sda1, it would show you the device numbers. while you're in the directory where that file is, you'll get the device name such as /dev/sda1. It's the major and minor device number combined into one value (in hex and decimal) of the device on which the file resides.įor your example, 804h is major device 8, minor device 4.
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