Hi all,
I know how to count lines, count byte of a file, but really dont know how to compare line , I am newbie and hope you can help me to learn more about UNIX.
Here is my problem.
====
How :
1. File A (Flatfile with NAME|DATE|ID1|ID2|ID3|ID4|ID5)... (3 Replies)
Hi,
I am a newbie to shell scripting. here is my objective:
1)The shell program should take 2 parameters - ie-> DestinationFolder, WebFolder
2)Destination folder contains few files that has to has be verified and deleted.
3)WebFolder is a folder containing a list of master files
4)It... (1 Reply)
Hi,
I have a dir in which I need to check for 3 files. and naming for three files are as below.
fileone_yyyy_mm_dd.dat
filetwo_yyyy_mm_dd.dat
filethree_yyyy_mm_dd.datand YYYY_mm_dd will change everyday as the date changes. I need to check everyday all these files are existing or not... (4 Replies)
Hi,
I am new to shell scripting.Please help me on this.I am using solaris 10 OS and shell i am using is
# echo $0
-sh
My requirement is i have source file say makefile.I need to extract files with extensions (.c |.cxx |.h |.hxx |.sc) from the makefile.after doing so i need to check whether... (13 Replies)
Hi Experts,
I am checking how to get day in Perl.
If it is “Monday” I need to process…below is the pseudo code.
Can you please prove the code for below condition.
if (today=="Monday" )
{
while (current_time LESS THAN 9:01 AM)
... (1 Reply)
Hi all,
I have 2 files in which i have to find commom entries in column 1 an dif soemthing is common write other data of both files in front of it mentioned.
Gene symbol and disease name
column 1 column2
ARFGEF2 CAD
DDEF2 CAD
PSCD3 CAD
PSCD4 CAD
CAMK1... (15 Replies)
Hi,
I have to check the files in another server using sftp to do that, below is the code i am going with
#!/bin/bash
export SRC_FOLDER=$1
export ARC_FOLDER=$2
HOST=as07u3456
USER=relfag
sftp ${USER}@${HOST} <<EOF
cd $SRC_FOLDER/DSCOR
ls
bye
EOF
echo "done"
whatever the files i... (8 Replies)
unzip -v gives CRC info of each file in a zip(in my case .EAR) file.
# unzip -v my-application.ear
Archive: my-application.ear
Length Method Size Cmpr Date Time CRC-32 Name
-------- ------ ------- ---- ---------- ----- -------- ----
197981 Defl:N 183708 7%... (1 Reply)
For the first time in the history of the site Google Search Console (GSC) has unix.com showing "no mobile viewability errors". This is no small achievement considering the hundreds of thousand of lines of legacy code we run at a site which has been around much longer than Facebook or LinkedIn:
... (0 Replies)
Discussion started by: Neo
0 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)