I have tried to use ">" as record separator, but it doesn't work.
I have tried this:
awk BEGIN{RS=">"}'{print $0}' input
output:
awk: BEGIN{RS=>}{print $0}
awk: ^ syntax error
awk BEGIN{RS="\>"}'{print $0}' input
awk: BEGIN{RS=\>}{print $0}
awk: ^ backslash not... (2 Replies)
I'm working on a different stage of a project that someone helped me address elsewhere in these threads.
The .docs I'm cycling through look roughly like this:
1 of 26 DOCUMENTS
Copyright 2010 The Age Company Limited
All Rights Reserved
The Age (Melbourne, Australia)
November 27, 2010... (9 Replies)
HI all,
i have the source file like below,
05 BL-FEE-CYC-CDE PIC S9(03) COMP-3.
05 BL-FEE-ERR-MSG PIC X(00030).
05 BL-FEE-TYPE PIC X(00001).
418181*# 05 ... (7 Replies)
Hi,
I have a bunch of records within a directory where each one has this form:
(example file1)
1 2 50 90 80 90 43512 98 0909 79869 -9 7878 33222 8787 9090 89898 7878 8989 7878 6767 89 89 78676 9898 000 7878 5656 5454 5454
and i want for all of these files to be... (3 Replies)
How do I use single quotes as record separator in awk?
I just couldn't figure that out. I know how to use single quotes as field separator, and double quotes as both field and record separator ... (1 Reply)
Hello to all,
Please some help on this. I have the file in format as below.
How can I set the record separator as the string below in red
"No. Time Source Destination Protocol Length Info"
I've tried code below but it doesn't seem to... (6 Replies)
I am using the following code to modify all odd lines in a file:
awk 'NR % 2 { print } !(NR % 2)' FWD-1.fas | cut -c5-600
I however, do not want cut to affect the odd lines
Any help? (3 Replies)
Hi,
I'm using gawk to read a text file and count the sentences.
I want to use a record separator of a period, exclamation mark and a question mark.
The problem is that the file contains words like "Mr. Smith" so the periods in the appellation are tripping my record separator.
This is my... (12 Replies)
Discussion started by: 1Brajesh
12 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)