08-11-2009
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
I want to replace text 'DEF' for those files containing text 'ABC'.
I can only locate the files containing text 'ABC', but I don't know how to replace the text 'ABC' with 'DEF'.
I use the following command to locate the files containing 'ABC'
find . -exec grep -l 'ABC'... (1 Reply)
Discussion started by: wilsonchan1000
1 Replies
2. Shell Programming and Scripting
I need to replace the line containing "STAGE_DB" with the line
"STAGE_DB $DB # database that contains the table being loaded ($workingDB)"
Here $DB is passed during the runtime.
How can I do this?
Thanks,
Kousikan (2 Replies)
Discussion started by: kousikan
2 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I have a file with large number of records. Sample below:
123456789QWERT2U 2 erter
987123678ZXCVB6Y 5 7689
934567123GHJKUI4O 7
-
--
--
I want the 16th character in each record to be replaced with the below as follows;so 2 will become K, 6 will become O and 4 will become... (3 Replies)
Discussion started by: er_ashu
3 Replies
4. Shell Programming and Scripting
Lets say I have file.txt:
(Product:Price:QuantityAvailable) (: as delimiter)
Chocolate:5:5
Banana:33:3
I am doing a edit/update function.
I want to change the Quantity Available, so I tried using the SED command to replace 5, but my Price which is also 5 is changed instead.
(for the Banana... (13 Replies)
Discussion started by: andylbh
13 Replies
5. Shell Programming and Scripting
Hi How Are you?
I am doing fine!
I need to go now?
I will see you tomorrow!
Basically I need to replace the entire line containing "doing" with a blank line:
I need to the following output:
Hi How Are you?
I need to go now?
I will see you tomorrow!
Thanks in advance.... (1 Reply)
Discussion started by: sags007_99
1 Replies
6. Shell Programming and Scripting
Hello All
I am struck in the issue which I want to share with all of you.
What I am trying to do is For every line in a file I have to replace a particular character from the given character in a file
For Example
Suppose the data is
1111x2222
1111x2222
2222y3333
1111x2222
I... (4 Replies)
Discussion started by: adisky123
4 Replies
7. Shell Programming and Scripting
I have a text file that looks like this:
-----------------------------------------
sta WP00
time 10/23/2013 20:10:17
sensor trillium_240_2 0 583
add
close sensor trillium_240_2 10/23/2013 20:10:17
sensor trillium_120 0 279
add
close sensor trillium_120 10/23/2013 20:10:35... (11 Replies)
Discussion started by: klane
11 Replies
8. Shell Programming and Scripting
Hi,
i have a huge file that need to check for a pattern that occur more than once in a line like below:-
#lkk>cd-m>A0DV0>192.134.1.1 blablabladsdjsk
jshdfskfslfs
#lqk>cd-m>A1SV0>192.14.11.1 blalalbnalablab
balablablajakjakjakja
#pldqw>sf-w>PH67FR>168.55.1.1 balablabala... (5 Replies)
Discussion started by: redse171
5 Replies
9. Shell Programming and Scripting
friends I am struck in a situation where I need to comment a line start with space as below in a file
root@LOCALHOST * rw
LOCALHOST* r
I should comment second line only
Any help please (16 Replies)
Discussion started by: mallak
16 Replies
10. Shell Programming and Scripting
I have a situation where a file "config.txt" looks like this
Servername:
OS:
Serername:
OS:
Servername:
OS:
....
....
...
Servername:
OS:
looking for the sed syntax to replace the "Nth" occurrence of Servername (i would apply the same logic to OS as well), want to replace the Nth... (4 Replies)
Discussion started by: alldbest
4 Replies
LEARN ABOUT DEBIAN
otr_toolkit
OTR_PARSE(1) General Commands Manual OTR_PARSE(1)
NAME
otr_parse, otr_sesskeys, otr_mackey, otr_readforge, otr_modify, otr_remac - Process Off-the-Record Messaging transcripts
SYNOPSIS
otr_parse
otr_sesskeys our_privkey their_pubkey
otr_mackey aes_enc_key
otr_readforge aes_enc_key [newmsg]
otr_modify mackey old_text new_text offset
otr_remac mackey flags snd_keyid rcv_keyid pubkey counter encdata revealed_mackeys
DESCRIPTION
Off-the-Record (OTR) Messaging allows you to have private conversations over IM by providing:
- Encryption
- No one else can read your instant messages.
- Authentication
- You are assured the correspondent is who you think it is.
- Deniability
- The messages you send do not have digital signatures that are
checkable by a third party. Anyone can forge messages after a
conversation to make them look like they came from you. However,
during a conversation, your correspondent is assured the messages
he sees are authentic and unmodified.
- Perfect forward secrecy
- If you lose control of your private keys, no previous conversation
is compromised.
The OTR Toolkit is useful for analyzing and/or forging OTR messages. Why do we offer this? Primarily, to make absolutely sure that tran-
scripts of OTR conversations are really easy to forge after the fact. [Note that during an OTR conversation, messages can't be forged
without real-time access to the secret keys on the participants' computers, and in that case, all security has already been lost.] Easily-
forgeable transcripts help us provide the "Deniability" property: if someone claims you said something over OTR, they'll have no proof, as
anyone at all can modify a transcript to make it say whatever they like, and still have all the verification come out correctly.
Here are the six programs in the toolkit:
- otr_parse
- Parse OTR messages given on stdin, showing the values of all the
fields in OTR protocol messages.
- otr_sesskeys our_privkey their_pubkey
- Shows our public key, the session id, two AES and two MAC keys
derived from the given Diffie-Hellman keys (one private, one public).
- otr_mackey aes_enc_key
- Shows the MAC key derived from the given AES key.
- otr_readforge aes_enc_key [newmsg]
- Decrypts an OTR Data message using the given AES key, and displays
the message.
- If newmsg is given, replace the message with that one, encrypt
and MAC it properly, and output the resulting OTR Data Message.
This works even if the given key was not correct for the original
message, so as to enable complete forgeries.
- otr_modify mackey old_text new_text offset
- Even if you can't read the data because you don't know either
the AES key or the Diffie-Hellman private key, but you can make a
good guess that the substring "old_text" appears at the given
offset in the message, replace the old_text with the new_text
(which must be of the same length), recalculate the MAC with the
given mackey, and output the resulting Data message.
- Note that, even if you don't know any text in an existing message,
you can still forge messages of your choice using the
otr_readforge command, above.
- otr_remac mackey flags snd_keyid rcv_keyid pubkey counter encdata revealed_mackeys
- Make a new OTR Data Message, with the given pieces (note that the
data part is already encrypted). MAC it with the given mackey.
SEE ALSO
Off-the-Record Messaging, at http://www.cypherpunks.ca/otr/ <http://www.cypherpunks.ca/otr/>
AUTHOR
otr_toolkit was written by the OTR Dev Team <otr@cypherpunks.ca>.
October 27, 2005 OTR_PARSE(1)