maybe not the most elegant way, but hey it's Friday, and time to call it a day!
Hey thanks for the reply. The file that I have is quote large (approx 5 million rows). How do i redirect the output or result of this command to a file without modifying this file?
Hi
I use sed in a script for severall changes in files. I whish one of the substitutions I made to be aplied to every line that has the word "scripts" with the exception for the ones that start with "rsh", wich I wish sed to ignore . Is this possible? If yes, how can I do it?
The substitution... (2 Replies)
Hi,
I've already posted elsewhere but am posting again here coz im a newbie. I hope you forgive me this time.
I want to know if its possible to delete or ignore columns in a large dataset using 'sed'. For example, I have the following dataset: -
... (0 Replies)
Hi,
I have a table in my sqlite, here is an example (tab separated)
585 name1 chr1 + 1872 3533 3533 3533 6 1872,2041,2475,2837,3083,3315, 1920,2090,2560,2915,3237,3533, name2
The 10th and 11th columns have information in a comma separated format (not tab).... (0 Replies)
Please help me in ignoring first word in a line example
Input log
123^Babd^Basdf789^B098^Bouiou
Desired output
abd,asdf789,098,ouiou
123 should be ignored
is this possible using sed regular expressions
Use code tags - you got a PM with a guide. (2 Replies)
Hi All,
I want to write a script to create flar images on multiple servers. In non zfs filesystem I am using -X option to refer a file to exclude mounts on different servers.
but on ZFS -X option is not working. I want multiple mounts to be ignore on ZFS base system during flarecreate.
I... (0 Replies)
Hello All,
I have a .CSV file where I expect all numeric data in all the columns other than column headers.
But sometimes I get the files (result of statistics computation by other persons) like below( sample data)
SNO,Data1,Data2,Data3
1,2,3,4
2,3,4,SOME STRING
3,4,Inf,5
4,5,4,4
I... (9 Replies)
An extension from an earlier question. Now need a sed script to delete columns 7,15 and 16 from an example txt below..
Again, thanks in advance.
98M-01.WAV,98M,01,00:00:49,01:07:36:00,"MIX",,"BOOM-MKH50",,,,,,,,,,"",
98L-01.WAV,98L,01,00:00:51,01:01:45:00,"MIX",,"BOOM-MKH50",,,,,,,,,,"", (7 Replies)
Friends,
In the file i am having more then 100 lines like,
File1 had the values like this:
#Example East.server_01=EAST.SERVER_01
East.server_01=EAST.SERVER_01
West.server_01=WEST.SERVER_01
File2 had the values like this:
#Example EAST.SERVER_01=http://yahoo.com... (3 Replies)
Dear folks
I have a large data set which contains 400K columns. I decide to select 50K determined columns from the whole 400K columns. Is there any command in unix which could do this process for me? I need to also mention that I store all of the columns id in one file which may help to select... (5 Replies)
Hi Guys,
I need to replace the string based on specific value by keeping dollar sign
input=$1
var=$(echo "@code_temp_table_$value_table"| sed -r "s/\@code/${input}/;s/(nz|sa)_\$value_/\$value1_\1_/" )
Expected
if
input=nz,sa
then
nz_temp_table_$value1_table
else
if any other... (5 Replies)
Discussion started by: Master_Mind
5 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)