---------- Post updated at 01:13 PM ---------- Previous update was at 01:06 PM ----------
Quote:
Originally Posted by Unilearn
Hi getmmg,
Thanks for the code. It works fine. But after merging the 7th and 8th columns, it leaves the 8th, 10th, 12th etc. columns empty. For ex.
output:
1 mike 0 0 2 1 AA__GG__CT__AG
1 jack 0 0 2 2 TA__GT__CA__ AC
1 Mary 0 0 1 2 AT__GC __AT__GC
would it be possible to delete all these empty columns once and get the output like,
1 mike 0 0 2 1 AA GG CT AG
1 jack 0 0 2 2 TA GT CA AC
1 Mary 0 0 1 2 AT GC AT GC
That would be great!
Hi bartus11,
thanks for the code. But for some reason it is doing nothing. I get the empty output! any hints on that!
Thanks
Can you guys help me, I have two files:
File A
60|11111|
601|11111|
6012|11111|
6013|11111|
60142|11111|
File B
642|11111|
659|11111|
852|11111|
6012|11111|
6013|11111|
I want to combine the two file into:
File C
60|642|
601|642|
6012|642| (2 Replies)
Hi Guys,
I want to combine 2 files and and put together in 1 file and make two columns out it. See below desired output. Any help will be much appreciated.
inputfile1.txt
12345
67890
24580
inputfile2.txt
AAAAA
BBBBB
CCCCC (11 Replies)
Hello everybody,
I have some large files containing statistical data. The data is stored in the following generic format:
>cat my_file
1, 2, 3
1, 2, 3
1, 2, 3
>
The values of columns no.2 and 3 are expressed in bytes. I would like to transform them in Megabytes, by dividing them with... (3 Replies)
I have a text file that has three columns. But at the end of the text file, there are trailing lines that have missing second and third columns:
4 0.04972604 KLHL28
4 0.0497332 CSTB
4 0.04979822 AIF1
4 0.04983331 DECR2
4 0.04990344 KATNB1
4
4
4
4
How can I remove the trailing... (3 Replies)
Hi, I am trying to multiply column#1 with column#2 using a shell script. How can I make a for-loop script using 1st column as "i" and the second column as "j" from the following file? Please feel free to share any alternative ways to multiplying column#1 with column#2.
.06 5.0000
.49 ... (6 Replies)
Hello everyone,
I searched the forum looking for answers to this but I could not pinpoint exactly what I need as I keep having trouble.
I have many files each having two columns and hundreds of rows.
first column is a string (can have many words) and the second column is a number.The files are... (5 Replies)
Good morning all,
I have a problem that is one step beyond a standard awk compare.
I would like to compare three files which have several thousand records against a fourth file. All of them have a value in each row that is identical, and one value in each of those rows which may be duplicated... (1 Reply)
I'm trying to learn awk, but I've hit a roadblock with this problem. I have a hierarchy stored in a file with 3 columns:
id name parentID
4 D 2
2 B 1
3 C 1
1 A 5
I need to check if there are any values in column 3 that are not represented anywhere in column 1. I've tried this:
awk '{arr;}... (7 Replies)
Columns 4 and 5 are X and Y coordinates, column 6 is the elevation
I would like to add 2 new columns at the end of the file with values
the distance between first(X)(Y) and last location (X)(Y), based in 2 rows
the difference in elevation = ($6-prev6)
How to calculate the requested values... (6 Replies)
Discussion started by: jiam912
6 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)