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When I use lsblk | tail -1 | awk -F " " '{print $1}' command and if a disk is a multipath I get output as └─mpathe
But i need only mpathe to be grepped as output.. Please help.. But It works well if the disk is not mpath (2 Replies)
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Dear Guru's
I'm using Putty and want to edit a file. I know we generally use vi editor to do it. As I'm not good in using vi editor, I want to convert the vi into something like text pad. Is there any option in Putty to do the same ? Thanks for your response.
Srini (6 Replies)
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Hi,
I have large file with 3 columns and want to output the 1st and 2nd column only. However I want the 2nd column to be edited like this: 14.036 to fx14 (notice the number in fx14 comes from the first two digits of 14.036)
BEFORE:
aran24352 14.036 14.036
aran08740 07.034 07.032... (3 Replies)
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i have a file that contains such earthquake data, i want to write an AWK or SED script to input it and fix it (delete each section header delete some field, delete some blank lines and put ### instead of that) and at the end output it to a new file.
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I have a file which has 10 million records in it. When am trying to edit the file with vi, the following error occurs:
~
~
~
~
~
~
~
~
"file1" Value too large for defined data type
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hi experts,
please help me in writting the script..
i have two files file1 and file 2
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file1:
......
1
2
3
4
file2:
.....
1
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output (6 Replies)
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Hi,
I am new to UNIX. I have a text file where each line ends on the hexadecimal character "0A". In the file there are some records that contain the Hex characters "0D0A" which I need to replace by Hex "20".
Is there a simple way to do this?
Regards,
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LSBLK(8) System Administration LSBLK(8)
NAME
lsblk - list block devices
SYNOPSIS
lsblk [options]
lsblk [options] device...
DESCRIPTION
lsblk lists information about all or the specified block devices. The lsblk command reads the sysfs filesystem to gather information.
The command prints all block devices (except RAM disks) in a tree-like format by default. Use lsblk --help to get a list of all available
columns.
OPTIONS
-a, --all
List all block devices.
-b, --bytes
Print the SIZE column in bytes rather than in human-readable format.
-d, --nodeps
Don't print device holders or slaves. For example "lsblk --nodeps /dev/sda" prints information about the sda device only.
-D, --discard
Print information about the discard (TRIM, UNMAP) capabilities for each device.
-e, --exclude list
Exclude the devices specified by a comma-separated list of major device numbers. Note that RAM disks (major=1) are excluded by
default.
-f, --fs
Output info about filesystems. This option is equivalent to "-o NAME,FSTYPE,LABEL,MOUNTPOINT". The authoritative information about
filesystems and raids is provided by the blkid(8) command.
-h, --help
Print a help text and exit.
-i, --ascii
Use ASCII characters for tree formatting.
-m, --perms
Output info about device owner, group and mode. This option is equivalent to "-o NAME,SIZE,OWNER,GROUP,MODE".
-l, --list
Use the list output format.
-n, --noheadings
Do not print a header line.
-o, --output list
Specify which output columns to print. Use --help to get a list of all supported columns.
-P, --pairs
Use key="value" output format.
-r, --raw
Use the raw output format.
-t, --topology
Output info about block device topology. This option is equivalent to "-o NAME,ALIGNMENT,MIN-IO,OPT-IO,PHY-SEC,LOG-SEC,ROTA,SCHED".
NOTES
For the partitions are some information (e.g. queue attributes) inherited from parental device.
AUTHORS
Milan Broz <mbroz@redhat.com>
Karel Zak <kzak@redhat.com>
SEE ALSO
findmnt(8), blkid(8), ls(1)
AVAILABILITY
The lsblk command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux April 2010 LSBLK(8)