Hi,
If I want to have a look at few lines of the file, how do I, what command to use.
Eg: If I have a file having length 2000 lines and I want to have a look at the content between 1400 and 1600, How do I look at it ?
Also, If I want to have a look at function alone in a file, how do I go... (4 Replies)
Hi,
I am using the Korn shell script to display lines of the file. For example below:
outputfile=test.dat
-- display each line of the test.dat file
abcd 345
adek 45566
dve3 34565
so on...
I appreciate your time to find a command for displaying lines of the file on the log.
... (2 Replies)
Hi
to all in this great forum, im sure this has been asked lots of times before but ive been looking for the past day and cant find the answer.
I use cat/some/file to display its contents but how can i get it to not display hashed out lines, or do i need another command,
Thanks in advance:) (5 Replies)
I have to grep on a few words in a file and then display the line containing those words and the line above it.
For ex -
File1.txt contains...
abc xyz abc
This is a test
Test successful
abc xyz abc
Just a test
Test successful
I find the words 'Test successful' in the file... (6 Replies)
Hi!
I'm trying to create a shell script to parse a file which might have multiple lines matching a pattern (i.e. containing some word).
I need to return all lines matching the pattern, but stripping the contents of that line until the pattern is matched
For example, if my input file was
... (4 Replies)
a. How do I display the content of the file containing what Ive merged using a filter which would display only the lines of the file which don't contain number, for example 3 or 6. (3 Replies)
Hi Guys,
I want to echo last 5 lines of a file to a mail. My script getting continuously looped and not getting the output. can anyone help?
#!/bin/bash
read karthick;
tail -5 $karthick;
echo $karthick | mail -s "genius" someone@gmail.com
Thanks
NK (2 Replies)
Thanks a lot for the code and the explanation.
Now my final requirement.
I have uploaded 3 files as attachment. Please open the files in Editplus or any other text editor which keeps the formatting.
GMDCOM.27936.log.txt------I want to pick only Process request from this file.(Please check... (9 Replies)
hi,
I have a log file with data for more than 3 years, i want only the rows for the year 2017, say for example.
My file has the data like this
08-OCT-2015 11:17:35 AAA, BBBB
08-OCT-2017 11:17:35 AAA,Bdfdfd,dfdfd,dfd
08-Nov-2017 11:17:35 AAA,Bdfdfd,dfdfd,deree
i want the rows... (2 Replies)
Discussion started by: skoshekay
2 Replies
LEARN ABOUT CENTOS
tpm_quote_tools
TPM QUOTE TOOLS(8) TPM QUOTE TOOLS(8)NAME
TPM Quote Tools
PROGRAMS
tpm_mkuuid, tpm_mkaik, tpm_loadkey, tpm_unloadkey, tpm_getpcrhash, tpm_updatepcrhash, tpm_getquote, tpm_verifyquote
DESCRIPTION
TPM Quote Tools is a collection of programs that provide support for TPM based attestation using the TPM quote operation.
A TPM contains a set of Platform Configuration Registers (PCRs). In a well configured machine, some of these registers are set to known
values during the boot up process or at other times. For example, a PCR might contain the hash of a boot loader in memory before it is
run.
The TPM quote operation is used to authoritatively verify the contents of a TPM's Platform Configuration Registers (PCRs). During provi-
sioning, a composite hash of a selected set of PCRs is computed. The TPM quote operation produces a composite hash that can be compared
with the one computed while provisioning.
To use the TPM quote operation, keys must be generated. During provisioning, an Attestation Identity Key (AIK) is generated for each TPM,
and the public part of the key is made available to entities that validate quotes.
The TPM quote operation returns signed data and a signature. The data that is signed contains the PCRs selected for the operation, the
composite hash for the selected PCRs, and a nonce provided as input, and used to prevent replay attacks. At provisioning time, the data
that is signed is stored, not just the composite hash. The signature is discarded.
An entity that wishes to evaluate a machine generates a nonce, and sends it along with the set of PCR used to generate the composite PCR
hash at provisioning time. For this use of the TPM quote operation, the signed data is ignored, and the signature returned is used to val-
idate the state of the TPM's PCRs. Given the signature, the evaluating entity replaces the nonce in the signed data generated at provi-
sioning time, and checks to see if the signature is valid for the data. If so, this check ensures the selected PCRs contain values that
match the ones measured during provisioning.
A typical scenario for an enterprise using these tools follows. The tools expect AIKs to be referenced via one enterprise-wide Universally
Unique Identifier (UUID). The program tpm_mkuuid creates one.
For each machine being checked, an AIK is created using tpm_mkaik. The key blob produced is bound to the UUID on its machine using
tpm_loadkey. The public key associated with the AIK is sent to the entities that verify quotes. Finally, the expected PCR composite hash
is obtained using tpm_getpcrhash. When the expected PCR values change, a new hash can be generated with tpm_updatepcrhash.
The program to obtain a quote, and thus measure the current state of the PCRs is tpm_getquote. The program that verifies the quote
describes the same PCR composite hash as was measured initially is tpm_verifyquote.
SEE ALSO tpm_mkuuid(8), tpm_mkaik(8), tpm_loadkey(8), tpm_unloadkey(8), tpm_getpcrhash(8), tpm_updatepcrhash(8), tpm_getquote(8), tpm_verifyquote(8)
Oct 2010 TPM QUOTE TOOLS(8)