How to search for a word like "computer" in a column (eg: 4th field) of a '***' delimited file and add a column at the end of the record which denotes 'Y' if present and 'N' if not. After this, we need to again check for words like 'Dell' but not 'DellXPS' in 5th field and again add another column... (5 Replies)
Hi,
I have to search a word in a text file and then I have to delete lines above from the word searched . For eg suppose the file is like this:
Records
P1
10,23423432
,77:1
,234:2
P2
10,9089004
,77:1
,234:2
,87:123
,9898:2
P3
456456
P1
:123,456456546
P2
abc:324234 (2 Replies)
Hi, i am new to unix shell scripting and i need a script which would search for a particular word in all the files present in a directory. The output should have the word and file path name. For example: "word" "path name".
Thanks for the reply in adv,:) (3 Replies)
I have a data in a file like this
1 praveen bmscollege
2 shishira bnmit
3 parthiva geethamce
I want to search "praveen" using awk command i tried like this but i did not get
awk `$2="praveen" {print $0} ` praveen.lst
can anyone help me solving this problem in... (2 Replies)
I have a file input.txt which have loads of weird characters, html tags and useful materials. I want to display 35 characters after the word description excluding weird characters like $$#$#@$#@***$# and without html tags in the new file output.txt. Help me. Thanx in advance.
My final goal is to... (11 Replies)
I have a file input.txt which have loads of weird characters, html tags and useful materials. I want to display 35 characters after the word "description" excluding weird characters like $&lmp and without html tags in the new file output.txt. Help me. Thanx in advance. I have attached the input... (4 Replies)
Hi, I have a file with +/- 13000 lines and 4 column. I need to search the 3rd column for a word that begins with "SAP-" and move/skip it to the next column (4th). Because the 3rd column need to stay empty.
Thanks in advance.:)
89653 36891 OTR-60 SAP-2
89653 36892 OTR-10 SAP-2... (2 Replies)
Hi All,
I have a XML file which is looks like as below. <<please see the attachment >>
<?xml version="1.0" encoding="UTF-8"?>
<esites>
<esite>
<name>XXX.com</name>
<storeId>10001</storeId>
<module>
... (4 Replies)
Hi,
I have a sample file as shown below, I am looking for sed or any command which prints the complete word only from the input file.
Ex:
$ cat "sample.log"
I am searching for a word which is present in this file
We can do a pattern search using grep but I need to cut only the word which... (1 Reply)
Discussion started by: mohan_kumarcs
1 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)