Good idea, but, as you said, cat and paste aren't too flexible. How about this sed / sort approach that collects lines up to an empty one, replaces <newline> with a token (here: <CR> = \r), sorts the output, and undoes the replacement? Be aware that uniq also needs sorted input to work correctly.
. The original order is lost, though, which might not be a problem because the multiple entries seem randomly distributed. To get to something like an order by date, you could try (given your sort version provides the -M option)
Hey Guys,
I have file which looks like this,
Contig201#numbPA
Contig1452#nmdynD6PA
dm022p15.r#CG6461PA
dm005e16.f#SpatPA
IGU001_0015_A06.f#CG17593PA
I need to remove duplicates based on the chracter matching upto '#'.
for example if we consider this..
Contig201#numbPA... (4 Replies)
Input File is :
-------------
25060008,0040,03,
25136437,0030,03,
25069457,0040,02,
80303438,0014,03,1st
80321837,0009,03,1st
80321977,0009,03,1st
80341345,0007,03,1st
84176527,0047,03,1st
84176527,0047,03,
20000735,0018,03,1st
25060008,0040,03,
I am using the following in the script... (5 Replies)
Hello experts,
I am trying to remove all lines in a csv file where the 2nd columns is a duplicate. I am try to use sort with the key parameter
sort -u -k 2,2 File.csv > Output.csv
File.csv
File Name|Document Name|Document Title|Organization
Word Doc 1.doc|Word Document|Sample... (3 Replies)
Hi:
I am trying to create some script that sorts the files in a subdirectory by date and concatenates the thre most recently created files.
SAy,
file1 date1
file2 date2
file3 date3
file4 date4
file5 date5
file6 date6
i only want to concatenate the first three which are the most... (4 Replies)
I have the following requirement.
1. I have to concatenate the 10 fixed width files.
2. sort based on first 10 characters
3. after that i have remove first 10 chacters from the file.
can you please tell me how to do it.
Thanks in Advance
Samba (1 Reply)
Hi,
I'm using the below command to sort and remove duplicates in a file. But, i need to make this applied to the same file instead of directing it to another.
Thanks (6 Replies)
Hi ,
I have below data inside a file named ref.psv . I want to create a shell script which will do the below 2 points :
(1) sort the file content first based on the latest date which is the last column in the file (actual file its the 175th column)
(2)after sorting the file based on latest date... (3 Replies)
I need to use bash to remove duplicates without using sort first.
I can not use:
cat file | sort | uniq
But when I use only
cat file | uniq
some duplicates are not removed. (4 Replies)
Here is my task :
I need to sort two input files and remove duplicates in the output files :
Sort by 13 characters from 97 Ascending
Sort by 1 characters from 96 Ascending
If duplicates are found retain the first value in the file
the input files are variable length, convert... (4 Replies)
I have /tmp dir with filename as:
010020001_S-FOR-Sort-SYEXC_20160229_2212101.marker
010020001_S-FOR-Sort-SYEXC_20160229_2212102.marker
010020001-S-XOR-Sort-SYEXC_20160229_2212104.marker
010020001-S-XOR-Sort-SYEXC_20160229_2212105.marker
010020001_S-ZOR-Sort-SYEXC_20160229_2212106.marker... (4 Replies)
Discussion started by: gnnsprapa
4 Replies
LEARN ABOUT DEBIAN
kdump-config
kdump-config(8) Linux System Administrator's Manual kdump-config(8)NAME
kdump-config - configure kdump, check status, or save a vmcore file
SYNOPSIS
kdump-config { help | test | show | status | load | unload | savecore }
DESCRIPTION
kdump-config manages the kdump feature of the Linux kernel. When a kdump enabled kernel panics, it immediately boots into a clean kernel
called the kdump kernel. The memory image of the panicked kernel will be presented in /proc/vmcore while the kdump kernel (or "capture
kernel") is running.
kdump-config loads the kdump kernel into the current kernel and after a kdump, captures the vmcore image via kdump kernel. kdump-config
can take advantage of the linux-image-$(uname -r)-dbg package and will try to use makedumpfile to capture the vmcore. The crash tool can
then be used to analyze the vmcore at a later time.
kdump-config exits with 0 on success and 1 on failure.
COMMANDS
help Print a usage summary.
test Determine the parameters that would be used to load the kdump kernel, but do not load the kdump kernel. Useful for evaluating your
configuration settings.
show Show current parameters and the saved kexec command from the last kdump-config load.
status Evaluate /sys/kernel/kexec_crash_loaded
and print a corresponding message.
load Load the kdump kernel.
unload Unload the kdump kernel.
savecore
If /proc/vmcore exists, save it using makedumpfile.
FILES
/etc/init.d/kdump-tools
init script to automatically load a kdump kernel, or save a vmcore and reboot.
/etc/default/kdump-tools
configuration file
/var/crash/kernel_link
a link to the current debug kernel
/var/crash/kexec_cmd
the last kexec_cmd executed by kdump-config
DIAGNOSTICS
USE_KDUMP is not set or zero
The variable USE_KDUMP in the file /etc/default/kdump-tools
is 0. To use kdump, edit the file and change the value to 1.
kdump is not supported by this kernel
The file /sys/kernel/kexec_crash_loaded does not exist. This means that the currently running kernel either was not configured to
support kdump, or that a crashkernel= commandline parameter was not used when the currently running kernel booted.
no crashkernel= parameter in the kernel cmdline
a crashkernel= commandline parameter was not used when the currently running kernel booted. You will need to add a crashkernel=
parameter to your /etc/lilo.conf, /etc/elilo.conf or grub /boot/grub/menu.lst file and reboot, before kdump will work. See
installed READMEs for suggestions.
could not find an installed debug vmlinux image and
DEBUG_KERNEL is not specified in /etc/default/kdump-tools
Warning: makedumpfile will be limited to -d 1.
A debug version of the currently booted kernel could not be found.
KDUMP_KERNEL does not exist: $KDUMP_KERNEL
A KDUMP_KERNEL was specified in /etc/default/kdump-tools, but it cannot be found.
KDUMP_INITRD does not exist: $KDUMP_INITRD
A KDUMP_INITRD was specified in /etc/default/kdump-tools, but it cannot be found.
no KDUMP_KERNEL in $KDUMP_DEFAULTS and
can't find a kdump package directory in /usr/lib
no kdump kernel could be found.
found a linux-kdump package in $KDUMP_PKG_DIR
but can't find a kdump kernel in $KDUMP_PKG_DIR
this indicates a broken linux-kdump package installation.
no kdump initrd image: $KDUMP_INITRD
an initrd will not be used
this indicates that although a kdump kernel was found, a corresponding initrd was not found.
kdump kernel relocation address does not match crashkernel= parameter
For non-relocatable architectures, the kdump kernel must be built with a predetermined start address. This message indicates that
the start address of the kdump kernel and the start address in the crashkernel= parameter do not match.
failed to load kdump kernel
kexec reported that it could not load the kdump kernel.
failed to unload kdump kernel
kexec reported that it could not unload the kdump kernel. Run 'kexec -u' directly for more detail.
makedumpfile failed, falling back to 'cp'
this message is printed if the kdump-tools init script attempts to save a /proc/vmcore file using makedumpfile and the save fails.
failed to save vmcore in $KDUMP_STAMPDIR
this message indicates that makedumpfile and the fallback method of using cp has failed. This usually occurs if pathnames are wrong
or if the disk is full.
SEE ALSO
/usr/share/doc/kdump-tools/README
/usr/share/doc/kdump-tools/README.Debian
kdump-tools(5), kexec(8), crash(8), gdb(1), makedumpfile(8)AUTHOR
Terry Loftin <terry.loftin@hp.com>
kdump-tools v1.1.3 April 2007 kdump-config(8)