I am using the following Command to delete Directory with contents. But this command is deleting inside files only not directories. is there any change need in my command?
find -type f -mtime +3 -exec rm -r {} \;
Thanks (3 Replies)
Hi Gurus
I am facing a problem, there is a folder called /a where there are lots of files which are occupying space anything between 30 GB to 100 GB as I am not able to check the space occupied by that folder through "du -sh /a" command as I don't see any output after more than 1 hour of... (4 Replies)
Hi all
i have a directory where it has files as shown below.Using find command how can i delete files which were modified more than 20 days ago and having the pattern jnhld15231 or jnhld15232.
find ./ -name "jnhld15231^" -type f -mtime +20 -exec rm {} \;
find ./ -name "jnhld15232^" -type f... (2 Replies)
Hello All,
Can someone please help me out in creating the find command to search and delete files older than 1 days at a desired location.
Thanks in advance for your help. (3 Replies)
Hi,
I want to delete all the log files that was created on year 2008. My command is not working. Any idea?
find . -name '*.log' -mtime 1460 -exec ls -lt {} \;
Thank you. (2 Replies)
Hi All,
I've created 2 files
touch -t 201309101234 aa10
touch -t 201309111234 aa11
Exact 60 days before from today date is SEPT 12th . As per the following command as i gave +60 means the files which were created before sept12th should be deleted
find /etc/logs/*aa* -type f -atime +60... (5 Replies)
Hello,
we have process2(my_pro.sh) which check for the file Pr_rn_Chk (generated by other process1). The process runs every 15 min.
if exist Pr_rn_Chk the process will exit. Else it will continue.
I want to check if the file Pr_rn_Chk is older than 45 min delete the file. so that 4th run... (3 Replies)
hi all,
i have devised a script that starts in /restored/ and in there, there are a lot of sub folders called peoples names and in the sub folders are files/folders and it deletes the data in the sub folders BUT not the sub folder itself and it should then touch a file in all the sub folders... (3 Replies)
Hello there,
I've been trying to do this half of the day and it's like I haven't come a single step further, so I hope you guys can help me with my problem:
I have a text file that contains strings that should not be there and which I want to delete automatically from the command line. The... (4 Replies)
Discussion started by: surfi
4 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)