I have a file:
Fred
Fred
Fred
Jim
Fred
Jim
Jim
If sort is executed on the listed file, shouldn't the output be?:
Fred
Fred
Fred
Fred
Jim
Jim
Jim (3 Replies)
Using the last, uniq, sort and cut commands, determine how many times the different users have logged in.
I know how to use the last command and cut command...
i came up with last | cut -f1 -d" " | uniq
i dont know if this is right, can someone please help me... thanks (1 Reply)
Does anyone have a quick and dirty way of performing a sort and uniq in perl?
How an array with data like:
this is bkupArr BOLADVICE_VN
this is bkupArr MLT6800PROD2A
this is bkupArr MLT6800PROD2A
this is bkupArr BOLADVICE_VN_7YR
this is bkupArr MLT6800PROD2A
I want to sort it... (4 Replies)
hi
i have data which is in two columns (such as below). i need to compare two rows against each other and if one row matches the other row (except for different case), and their values in the second column are different, then it prints out one of the rows (either is fine).
here is an... (5 Replies)
Hello,
I have a large data file:
1234 8888 bbb
2745 8888 bbb
9489 8888 bbb
1234 8888 aaa
4838 8888 aaa
3977 8888 aaa
I need to remove duplicate lines (where the first column is the duplicate). I have been using:
sort file.txt | uniq -w4 > newfile.txt
However, it seems to keep the... (11 Replies)
Hi All,
I have a text file with the format shown below. Some of the records are duplicated with the only exception being date (Field 15). I want to compare all duplicate records using subscriber number (field 7) and keep only those records with greater date.
... (1 Reply)
Hi again,
I have files with the following contents
datetime,ip1,port1,ip2,port2,number
How would I find out how many times ip1 field shows up a particular file? Then how would I find out how many time ip1 and port 2 shows up?
Please mind the file may contain 100k lines. (8 Replies)
Hello all,
Need to pick your brains,
I have a 10Gb file where each row is a name, I am expecting about 50 names in total. So there are a lot of repetitions in clusters.
So I want to do a
sort -u file
Will it be considerably faster or slower to use a uniq before piping it to sort... (3 Replies)
Hi All,
Below the actual file which i like to sort and Uniq -u
/opt/oracle/work/Antony/Shell_Script> cat emp.1st
2233|a.k. shukula |g.m. |sales |12/12/52 |6000
1006|chanchal singhvi |director |sales |03/09/38 |6700... (8 Replies)
Discussion started by: Antony Ankrose
8 Replies
LEARN ABOUT OSX
dnssec-keyfromlabel
DNSSEC-KEYFROMLABEL(8) BIND9 DNSSEC-KEYFROMLABEL(8)NAME
dnssec-keyfromlabel - DNSSEC key generation tool
SYNOPSIS
dnssec-keyfromlabel {-a algorithm} {-l label} [-c class] [-f flag] [-k] [-n nametype] [-p protocol] [-t type] [-v level] {name}
DESCRIPTION
dnssec-keyfromlabel gets keys with the given label from a crypto hardware and builds key files for DNSSEC (Secure DNS), as defined in RFC
2535 and RFC 4034.
OPTIONS -a algorithm
Selects the cryptographic algorithm. The value of algorithm must be one of RSAMD5 (RSA) or RSASHA1, DSA, NSEC3RSASHA1, NSEC3DSA or DH
(Diffie Hellman). These values are case insensitive.
Note 1: that for DNSSEC, RSASHA1 is a mandatory to implement algorithm, and DSA is recommended.
Note 2: DH automatically sets the -k flag.
-l label
Specifies the label of keys in the crypto hardware (PKCS#11 device).
-n nametype
Specifies the owner type of the key. The value of nametype must either be ZONE (for a DNSSEC zone key (KEY/DNSKEY)), HOST or ENTITY
(for a key associated with a host (KEY)), USER (for a key associated with a user(KEY)) or OTHER (DNSKEY). These values are case
insensitive.
-c class
Indicates that the DNS record containing the key should have the specified class. If not specified, class IN is used.
-f flag
Set the specified flag in the flag field of the KEY/DNSKEY record. The only recognized flag is KSK (Key Signing Key) DNSKEY.
-h
Prints a short summary of the options and arguments to dnssec-keygen.
-k
Generate KEY records rather than DNSKEY records.
-p protocol
Sets the protocol value for the generated key. The protocol is a number between 0 and 255. The default is 3 (DNSSEC). Other possible
values for this argument are listed in RFC 2535 and its successors.
-t type
Indicates the use of the key. type must be one of AUTHCONF, NOAUTHCONF, NOAUTH, or NOCONF. The default is AUTHCONF. AUTH refers to the
ability to authenticate data, and CONF the ability to encrypt data.
-v level
Sets the debugging level.
GENERATED KEY FILES
When dnssec-keyfromlabel completes successfully, it prints a string of the form Knnnn.+aaa+iiiii to the standard output. This is an
identification string for the key files it has generated.
o nnnn is the key name.
o aaa is the numeric representation of the algorithm.
o iiiii is the key identifier (or footprint).
dnssec-keyfromlabel creates two files, with names based on the printed string. Knnnn.+aaa+iiiii.key contains the public key, and
Knnnn.+aaa+iiiii.private contains the private key.
The .key file contains a DNS KEY record that can be inserted into a zone file (directly or with a $INCLUDE statement).
The .private file contains algorithm specific fields. For obvious security reasons, this file does not have general read permission.
SEE ALSO dnssec-keygen(8), dnssec-signzone(8), BIND 9 Administrator Reference Manual, RFC 2539, RFC 2845, RFC 4033.
AUTHOR
Internet Systems Consortium
COPYRIGHT
Copyright (C) 2008 Internet Systems Consortium, Inc. ("ISC")
BIND9 February 8, 2008 DNSSEC-KEYFROMLABEL(8)