Note that the filename you use for the output file must NOT be a name of your input file.
That command removes all nulls. I need to remove only the ones that are at the end of the file just after the last non-null character, not in the middle of the file.
Hi,
I have a file like this
(ADD_MONTHS((Substr(Trim(BOTH FROM Translate(Maximum(closeDa
------------------------------------------------------------
2007-06-30 00:00:00
I have a requirement where i need just the date.
When i do: tail -1... (2 Replies)
Hello, I am trying to write a script that will calculate the amount of data remaining in a storage volume. I'm running Tru64 Unix version 5.1B patch kit 6. The script is being run against an AdvFS domain. I am programming in Korn Shell version M-11/16/88f.
The basic idea is that I want to run df... (3 Replies)
I have a script wherein I access each line of the file using a FOR loop and then perform some operations in each line. The problem is each line that gets extracted in FOR loop truncates trailing blank spaces and control characters (^M) that is present at the end of each line. I don't wan this to... (5 Replies)
I'm currently writing my sql results to a file and they have trailing spaces after each field. I want to get rid of these spaces and I'm using this code:
TVXTEMP=$(echo $TVXTEMP|sed -e 's/\ //g')
It doesn't work though. I'm not familiar with sedscript, and the other codes I've found online... (6 Replies)
Hi I have a simple request but can't find the answer. I want to remove trailing zeros, and in some cases the fullstops, from the input data. Example of input file:
FR002_15.000_20.000
SD475_5.000_10.500
FG5647_12.250_15.500
BH2463_30.555_32.000
Desired output file would be:
... (10 Replies)
I have some strings such as
ABC1
ABC2
TYFASDD12
They will only have letters and numbers. In each case I want to remove the last digit? The lengths will vary. So a hard coded substr won't work. What do I do?
if it doesn't end in a number, I don't want to remove any characters. (6 Replies)
I have a folder that contains many sub folders and files. This tree has to be backed up to an archive system. According to the tech support, one of the archives is failing to back up due to the possibility of trailing spaces on file and folder names. Therefore, I would like to have a script... (16 Replies)
I'm a newbie to shell scripting.
Can anyone help with the below requirement ?
The leading and trailing date of a files to be removed.
2017-07-12_gmr_tag_log_20170711.csv
2017-07-12_gmr_call_log_20170711.csv
2017-07-12_gmr_outgoing_log_20170711.csv
I'm looking for output like... (7 Replies)
Hi,
I am trying to remove leading and trailing spaces from a file using awk but somehow I have not been able to do it.
Here is the data that I want to trim.
07/12/2017 15:55:00 |entinfdev |AD ping Time ms | .474| 1.41| .581|green |flat... (9 Replies)
Discussion started by: svajhala
9 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)