Hi
I have a file which have say about 100,000 records..
the records in it look like
Some kind of text 1234567891 abcd February 14, 2008 03:58:54 AM lmnop
This is how it looks.. if u notice there is a 2byte space between each column.. and im planning to replace that with '|' ..
... (11 Replies)
Hello All,
I have a file with thousands of records:
eg:
|000222|123456987|||||||AARONSON| JOHN P|||PRIMARY |P
|000111|567894521|||||||ATHENS| WILLIAM k|||AAAA|L
Expected:
|000222|123456987|||||||AARONSON| JOHN |P|||PRIMARY |P
|000111|567894521|||||||ATHENS| WILLIAM |k|||AAAA|L
I... (6 Replies)
I am trying to extract 'postmaster' from the following string:
PenaltyError:=554 5.7.1 Error, send your mail to postmaster@LOCALDOMAIN
using the following command:
cat /usr/share/assp/assp.cfg | grep ^PenaltyError:= | cut -d '@' -f1 | cut -f8
but it returns:
PenaltyError:=554 5.7.1 Error,... (10 Replies)
Hello,
Is there a direct command to check if the delimiter in your file is a tab or a space? And how can they be converted from one to another.
Thanks,
G (4 Replies)
I have a csv file and there is a problem which I need to resolve.
Column1,Column2,Colum3,Column4
,x,y,z
,d,c,v
t,l,m,n
,h,s,k
,k,,y
z,j, ,p
Now if you see column1 for row 1 and row 4 though they are null there is a space but in case of row2 and row 5 there is no space.
I want row... (3 Replies)
I have more than 1000 files to parse. Each file contains few lines (number of lines varies) followed by a header line having all column's name (SPOT, NAME etc) and then values for those columns.
**Example File:
sdgafh
dfhaadfha
sfgaf dhah jkthdj
SPOT NAME GENE_NAME CH_MEAN CHDN_MED ... (11 Replies)
not sure if i'm doing this right i'm new tho this but i'm trying to use a space as a delimiter with the cut command
my code is
size=$( du -k -S -s /home/cmik | cut -d' ' -f1 )
i've also tried -f2 and switching the -d and -f around if that does anything (3 Replies)
Hi there,
After lots of reading I figured out how to use sed to parse my file.
This file is called services.txt:
00a1:ffff0000:0018:01f4:1:477
BravaNL
00a2:ffff0000:0018:01f4:1:471
MAX
00a3:ffff0000:000b:01f4:1:390
HaberTürk... (5 Replies)
Hi ,
Please suggest me how do I use : (colon and one space) as a delimiter in awk
Best regards,
Vishal (2 Replies)
Discussion started by: Vishal_dba
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)