If I want to put only the entries Email and Age in the output file from the desired record, how do I do that? I know 'print' command can do this, but my syntax always goes wrong.
I have a file which is 5 million records. And each records has 412 fields has delimited by "|". So that makes each records to be 2923 bytes long. I wanted to extract specific records like top 100 or 2500 - 5000, 50001 - 10000 etc. from this file.
I tried using head command for top 100 records,... (1 Reply)
I am trying to cut the first 10 characters from a file only if the file has 'xyz' in field 185-188.
I tried this
cat filename | cut -c1-10
but this gives me all the records regardless of what is in field 185-188.
Is this doable ?
Thanks in advance for responses. (2 Replies)
I have a flat file and need to count no of records in the file less the header and the trailer record.
I would appreciate any and all asistance
Thanks
Hadi Lalani (2 Replies)
Hi,
I am looking for a method to get column13 to column 50 data from the 1st line of a multiline reord. The records are stored in a large file and are separated by newline. sample format is
(data in red is to be extracted)
<header>
A001dfhskhfkdsh hajfhksdhfjh... (3 Replies)
Hi,
I have a file where there "Tab" seperated values are present.I need to identify duplicate entries based on column 1 & 6 only .
For e.g :
I tried using uniq ..but the output is only having one duplicate entry, instead of both the entries.I need both the above entries .
uniq -f5... (2 Replies)
I have 2 files
"File 1" is delimited by ";" and "File 2" is delimited by "|".
File 1 below (3 record shown):
Doc1;03/01/2012;New York;6 Main Street;Mr. Smith 1;Mr. Jones
Doc2;03/01/2012;Syracuse;876 Broadway;John Davis;Barbara Lull
Doc3;03/01/2012;Buffalo;779 Old Windy Road;Charles... (2 Replies)
Hello:
Is there a simple way to remove empty records of FASTA format file?
A FASTA format consists of two parts: header and sequence (for non-biologist, Wiki for details of course!). The header always start with ">" for the name of the sequence. The header must be in this ONLY single line.... (9 Replies)
Suppose i have the following data :
cat file.txt
12431,123334,55353,546646,14342234,4646,35234
123123,3535,123434,132535,1234134,13535,123534
123213,545465,23434,45646,2342345,4656,31243
2355425,2134324,53425,342,35235,23434,234535
3423424,234234,65465,,2344,35436,234524,234... (7 Replies)
Hi I am new to shell programming in unix
Please if I can provide help.
I have a file structure of a header record and "N" detail records.
The header record will be the total number of detail records
I need to split the file in 2:
One for the header
Another for all detail records
Could... (1 Reply)
Discussion started by: jamcogar
1 Replies
LEARN ABOUT DEBIAN
getds
GETDS(1p) User Contributed Perl Documentation GETDS(1p)NAME
getds - Create a DS record from DNSKEYing information
SYNOPSIS
getds <domain>
DESCRIPTION
getds will create a DS record from DNSKEYs for the specified DNS domain. It does this by converting DNSKEYs to DS records using the
specified hashing algorithm. The results can then be passed to upstream DNSSEC-supporting parents or to DLV registries.
getds will also pull the parent's published DS records and compare them against the existing keys. It will then list any DS records not
published in the parent, as well as any DS records that are published in the parent but which don't match an existing key.
OPTIONS
getds takes the following options:
-a ALGORITHMS
--hash-algorithm algorithm ALGORITHMS
This option specifies the hash algorithm to use when converting DNSKEYs to DS records. It may be a comma-separated list if multiple
algorithms are desired. The algorithms to choose from may be either SHA256 or SHA1.
The default is SHA256,SHA1
-z
--print-zsks
This option causes getds to print ZSK DS records, as well as KSK records.
-p
--dont-check-parent
Instructs getds to not check the records in the parent for their published DS records.
-q
--quiet
Produces quiet output with no explanatory headers. In other words, it only prints the DS records generated from the DNSKEYs.
Note: Running with -q implies -p.
SECURITY CONSIDERATIONS
By default, getds pulls data from the live DNS. If your DNS resolver isn't configured so that this is pulled securely, then the results
can't be trusted.
COPYRIGHT
Copyright 2008-2012 SPARTA, Inc. All rights reserved. See the COPYING file included with the DNSSEC-Tools package for details.
AUTHOR
Wes Hardaker, hardaker AT AT AT users.sourceforge.net
perl v5.14.2 2012-06-21 GETDS(1p)
12-14-2010
