I have a m X n matrix written out to file, say like this:
1,2,3,4,5,6
2,6,3,10,34,67
1,45,6,7,8,8
I want to calculate the column averages in the MINIMUM amount of code or processing possible. I would have liked to use my favorite tool, "AWK" but since it processes rowwise, getting the... (5 Replies)
hi
i have file which hav following entries
1501,AAA,2.00
1525,AAA,2.00
1501,AAA,2.00
1525,AAA,2.00
1501,AAA,3.00
1525,AAA,3.00
1525,AAA,3.00
1501,AAA,3.00
1501,AAA,3.00
i want to have a o/p coloum wise
like
1501,AAA,13
1525,AAA,10
here 13 comes as a sum of last colum value... (6 Replies)
Hi,
I have two files. Want to make an addition of the fifth column of from both the files and redirect it to a third file.
Both files have same records except fifth field and same record should be inserted into new file having fifth field as addition of fifth fields of both files.
for... (2 Replies)
Hi All,
I have two txt files like this
File1:
no name
----------
12 aaaa
23 bbbb
55 cccc
File2
dname dno
------------
civil 33
mech 55
arch 66
Now i want to compare col1 from File and col2 from File2, if its match i want fetch all columns from... (3 Replies)
Dear All,
I want to get help for below case.
I have a file like this.
saman 1
gihan 2
saman 4
ravi 1
ravi 2
so i want to get the result,
saman 5
gihan 2
ravi 3 like this.
Pls help me. (17 Replies)
Hi I have pasted sample data as below:- in data.txt
Please suggest any way out: as the 3rd field is
cat data.txt
22:37:34 STARTING abc
22:37:40 FAILURE sadn
00:06:42 STARTING asd
00:06:51 FAILURE ad
02:06:38 STARTING acs
02:06:46 FAILURE cz
04:06:35 STARTING xzc... (1 Reply)
Hi All,
I have a file with below content
01/22/2014,23:43:00,1742.8,
01/22/2014,23:43:00,1742.8,
01/22/2014,23:44:00,1749.06666666667,
01/25/2014,23:45:00,2046.45,
01/25/2014,23:43:00,1742.8,
01/25/2014,23:44:00,1749.06666666667,
01/25/2014,23:45:00,2046.45,
01/25/2014,23:43:00,1742.8,... (4 Replies)
My below code works fine if none of the columns has pipe as its content in it, If it has the pipe in any of the content then the value moves to the next column.
I wanted my code to work fine even if the column has pipe in it apart from the delimiter.
NOTE : If there is a pipe in the content... (6 Replies)
Discussion started by: nikhil jain
6 Replies
LEARN ABOUT CENTOS
btrfs-debug-tree
BTRFS-DEBUG-TREE(8) System Manager's Manual BTRFS-DEBUG-TREE(8)NAME
btrfs-debug-tree - dump Btrfs filesystem metadata into stdout.
SYNOPSIS
btrfs-debug-tree [options] <device>
DESCRIPTION
btrfs-debug-tree is used to dump the whole tree of the given device. This is maybe useful for analyzing filesystem state or inconsistence
and has a positive educational effect on understanding the internal structure. device is the device file where the filesystem is stored.
Options
-e print detailed extents info.
-d print info of btrfs device and root tree dirs only.
-r print info of roots only.
-b <block_num>
print info of the specified block only.
EXIT CODE
btrfs-debug-tree will return 0 if no error happened. If any problems happened, 1 will be returned.
AUTHOR
Written by Shilong Wang and Wenruo Qu.
COPYRIGHT
Copyright (C) 2013 Fujitsu, Inc. License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO mkfs.btrfs(8)BTRFS-DEBUG-TREE(8)