what am trying to do is delete a line in a specific file but I dont know what to do. I cant use the sed or awk commands because these commands dont really alter the original file. they only alter what they display on the screen
by the way, am trying to do this from a script so if anybody can... (5 Replies)
I have a file which has about 500K records and I need to delete about 50 records from the file. I know line numbers and am using
sed '13456,13457,......d' filename > new file.
It does not seem to be working.
Any help will greatly appreciated. (5 Replies)
Input:
a
b
b
c
d
d
I need:
a
c
I know how to get this (the lines that have duplicates) :
b
d
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Hi
This is a sample of my data file.
##field PH01000000 1 4869017
#PH01000000G0240
WWW278545G0240 P.he_model_v1.0 erine 119238 121805 . - . ID=PH01000000G0240;Description="zinc finger, C3HC4 type domain containing protein, expressed"... (7 Replies)
Hello,
I have file of more than 10000 lines.
I want to delete 40 lines after every 20 lines.
e.g from a huge file, i want to delete line no from 34 - 74, then 94 - 134 etc and so on.
Please let me know how i can do it.
Best regards, (11 Replies)
Discussion started by: nehashine
11 Replies
LEARN ABOUT FREEBSD
opiepasswd
OPIEPASSWD(1) General Commands Manual OPIEPASSWD(1)NAME
opiepasswd - Change or set a user's password for the OPIE authentication system.
SYNOPSIS
opiepasswd [-v] [-h] [-c|-d] [-f]
[-n initial_sequence_number ] [-s seed ] [ user_name ]
DESCRIPTION
opiepasswd will initialize the system information to allow one to use OPIE to login. opiepasswd is downward compatible with the keyinit(1)
program from the Bellcore S/Key Version 1 distribution.
OPTIONS -v Display the version number and compile-time options, then exit.
-h Display a brief help message and exit.
-c Set console mode where the user is expected to have secure access to the system. In console mode, you will be asked to input your
password directly instead of having to use an OPIE calculator. If you do not have secure access to the system (i.e., you are not on
the system's console), you are volunteering your password to attackers by using this mode.
-d Disable OTP logins to the specified account.
-f Force opiepasswd to continue, even where it normally shouldn't. This is currently used to force opiepasswd to operate in "console"
mode even from terminals it believes to be insecure. It can also allow users to disclose their secret pass phrases to attackers. Use
of the -f flag may be disabled by compile-time option in your particular build of OPIE.
-n Manually specify the initial sequence number. The default is 499.
-s Specify a non-random seed. The default is to generate a "random" seed using the first two characters of the host name and five
pseudo-random digits.
EXAMPLE
Using opiepasswd from the console:
wintermute$ opiepasswd -c
Updating kebe:
Reminder - Only use this method from the console; NEVER from remote. If you
are using telnet, xterm, or a dial-in, type ^C now or exit with no password.
Then run opiepasswd without the -c parameter.
Using MD5 to compute responses.
Enter old secret pass phrase:
Enter new secret pass phrase:
Again new secret pass phrase:
ID kebe OPIE key is 499 be93564
CITE JAN GORY BELA GET ABED
wintermute$
Using opiepasswd from remote:
wintermute$ opiepasswd
Updating kebe:
Reminder: You need the response from your OPIE calculator.
Old secret password:
otp-md5 482 wi93563
Response: FIRM BERN THEE DUCK MANN AWAY
New secret password:
otp-md5 499 wi93564
Response: SKY FAN BUG HUFF GUS BEAT
ID kebe OPIE key is 499 wi93564
SKY FAN BUG HUFF GUS BEAT
wintermute$
FILES
/etc/opiekeys -- database of key information for the OPIE system.
SEE ALSO ftpd(8), login(1), passwd(1), opie(4), opiekey(1), opieinfo(1), su(1), opiekeys(5), opieaccess(5)AUTHOR
Bellcore's S/Key was written by Phil Karn, Neil M. Haller, and John S. Walden of Bellcore. OPIE was created at NRL by Randall Atkinson, Dan
McDonald, and Craig Metz.
S/Key is a trademark of Bell Communications Research (Bellcore).
CONTACT
OPIE is discussed on the Bellcore "S/Key Users" mailing list. To join, send an email request to:
skey-users-request@thumper.bellcore.com
7th Edition January 10, 1995 OPIEPASSWD(1)