Minix 3 Source Code Organisation Explanation Post: 302720249

7 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need explanation for the syntax(code)

Hi I am new to shell script programming... want to know the process of the following: if then echo "$0: missing argument for option(s) :$MISSINGOPTARG" echo "usage" $USAGE" exit 1 fi

2. Shell Programming and Scripting

nawk code explanation

Hi I have a line/command which greps certain pattern () from the file and 22 lines AFTER that: nawk '/\/{c=22}c&&c--' input_file Can somebody explain the coding in this command (what " c&&c-- " does)? and how to modify this command to output 22 lines BEFORE this pattern () Thanks a lot ...

3. Homework & Coursework Questions

Please help with the following fork code..with complete explanation

I have the following piece of codes. Please explain it to me in great detail how are these codes working. 1. #include <stdio.h> int main(){ int x; x=0; while (x<2 && fork()){ if (!fork()) execlp("echo","x++","x",0); x++; system("echo x+x"); } } 2. #include <stdio.h> int i;...

4. Shell Programming and Scripting

code explanation

Can you please explain the following code plz? my_cd=' ' while getopts :e: OPTION; do case "$OPTION" in e) my_cd ="$OPTARG";; esac done if ; then echo " >>> ERROR - I am wrong" echo " >>> ERROR - Hello" exit 99 fi What I don't understand is what is OPTION or...

5. UNIX for Dummies Questions & Answers

Explanation of NAWK Code

Hi all, I need your help in understanding the meaning and syntax of the below nawk line. Here is an extract of a script which I use daily and works well. The script extracts the hostnames and messages within a syslog file. I would also like to extract the message time in the 3rd column by...

6. UNIX for Dummies Questions & Answers

Code explanation?

I need someone to tell me how exactly works the following code αfter /etc/passwd :eek:: cat /etc/passwd|grep "^:"|sed '1,$s/^$*$:*:$*$:.*$/ \1 \2 /'|sort -nrk3 -t:I want a good explanation to understand the code please

7. Shell Programming and Scripting

ksh code explanation

Hi. Can somebody please explain the following lines of KSH code for me? The code checks all sub directories in a specific location which are numbered (E.g. test_01, test_02 ... etc.), then finds the one with highest number and extracts that number from the dir name into the variable num. I'd just...

LEARN ABOUT OPENSOLARIS

mkfs.minix

MKFS.MINIX(8)						       System Administration						     MKFS.MINIX(8)

NAME

       mkfs.minix - make a Minix filesystem

SYNOPSIS

       mkfs.minix [options] device [size-in-blocks]

DESCRIPTION

       mkfs.minix creates a Linux MINIX filesystem on a device (usually a disk partition).

       The device is usually of the following form:

	      /dev/hda[1-8] (IDE disk 1)
	      /dev/hdb[1-8] (IDE disk 2)
	      /dev/sda[1-8] (SCSI disk 1)
	      /dev/sdb[1-8] (SCSI disk 2)

       The device may be a block device or a image file of one, but this is not enforced.  Expect not much fun on a character device :-).

       The  size-in-blocks parameter is the desired size of the file system, in blocks.  It is present only for backwards compatibility.  If omit-
       ted the size will be determined automatically.  Only block counts strictly greater than 10 and strictly less than 65536 are allowed.

OPTIONS

       -c, --check
	      Check the device for bad blocks before creating the filesystem.  If any are found, the count is printed.

       -n, --namelength length
	      Specify the maximum length of filenames.	Currently, the only allowable values are 14 and 30 for file system versions 1 and 2.  Ver-
	      sion 3 allows only value 60.  The default is 30.

       -i, --inodes number
	      Specify the number of inodes for the filesystem.

       -l, --badblocks filename
	      Read the list of bad blocks from filename.  The file has one bad-block number per line.  The count of bad blocks read is printed.

       -1     Make a Minix version 1 filesystem.  This is the default.

       -2, -v Make a Minix version 2 filesystem.

       -3     Make a Minix version 3 filesystem.

       -V, --version
	      Display version information and exit.  The long option cannot be combined with other options.

       -h, --help
	      Display help text and exit.

EXIT CODES

       The exit code returned by mkfs.minix is one of the following:

       0      No errors

       8      Operational error

       16     Usage or syntax error

SEE ALSO

       fsck(8), mkfs(8), reboot(8)

AVAILABILITY

       The mkfs.minix command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

util-linux							     June 2015							     MKFS.MINIX(8)