Unix gurus,
I have a file as below, which is basically the result set obtained from a sql query on an Oracle database.
ID PROG_NAME USER_PROG_NAME
-------- --------------- ----------------------------------------
33045 INCOIN Import Items
42690 ... (3 Replies)
Hi
Following is an example line.
echo "192.22.22.22 \"33dffwef\" 200 300 dsdsd" | sed "s:\(\ *\ \):\1:"
I want it's output to be
200
However this is not the case. Can you tell me how to do it? I don't want to use AWK for this. Secondly, how can i fetch just 300? Should I use "\2"... (3 Replies)
This seems to be a stupid basic question, but I cant get the space to stick in the awk variable.
I do use this command to grep a time range of the log file.
cat /var/log/daemon.log | awk '$0>=from&&$0<=to' from="$(date +%b" "%e" "%H:%M:%S -d -24hour)" to="$(date +%b" "%e" "%H:%M:%S)"
I now... (9 Replies)
I am trying to change the date format for the following:
YESTER=`TZ=aaa24 date +%b" "%d | sed 's/0/ /'`
TraceList=$(ls -ltR /pdt/logs | grep "$YESTER" | awk '{print $9}')
CMD2=$(find /disk/dan/dansFiles/pass/logs/$TList -name cmd\* -prune)
what I am trying to do in the above... (1 Reply)
Hello,
I wondering how I can echo a string without having the trailing whitespace removed.
For example I have a string str="TESTING123 " that I need to hash using sha1. I get the correct answer when I run the line below from the terminal
$ echo -n "TESTING123 " | openssl sha1... (3 Replies)
Hi again
I have an xml file and want to remove the leading white space as it causes me issues later in my script
I see sed is possible but cant seem to get it to work
I tried
sed 's/^ *//' file.xml
output
<xn:VsDataContainer id="1U104799" modifier="update">
... (10 Replies)
I'm trying to do something pretty simple but its appears more complicated than expected... I've lines in a text file, separated by the comma and that I want to output to another file, without the first field.
Input file:
file1,item, 12345678
file2,item, 12345678
file2,item, ... (8 Replies)
Is there a reliable way to deal with whitespace in array indicies?
I am trying to annotate fails in a database using a table of known fails.
In a begin block I have code like this:
# Read in Known Fail List
getline < "'"$failListFile"'"; getline < "'"$failListFile"'"; getline <... (6 Replies)
The awk below executes and update the desired field in my first awk. However, the white space between
nonsynonymous SNV in $9 is being split into tabs and my attempt to correct this does not update the field
unless it is removed. I am not sure what I am doing wrong? Thank you :).
file1
... (4 Replies)
Hello is it possible with awk or sed to replace any white space with the previous line characters in the same position?
I am asking this because the file I have doesn't always follow a pattern.
For example the file I have is the result of a command to obtain windows ACLs:
icacls C:\ /t... (5 Replies)
Discussion started by: nakaedu
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)