Hi ,
I have a list of files in a directory and filename format is as follows:
PQ223390
PQ876912
PQ768901
PQ398140 and so on
I want to grep the first four digits of all the files after PQ, into a file.
Ex:
2233
8769
6890
3981 and so on
Can anyone tell me the command?
thankx jazz (11 Replies)
Hi, I am currently building a PHP/MySQL database that handles our offices newsletters. Now everything works great in the alpha with only a few names in the list, but I anticipate that once we fill it up (around 10,000) that this will not work from the PHP. I already have the script echo the... (0 Replies)
I have a directory of files and each file has a random 5 digit string at the beginning that needs to be removed. Plus, there are some files that will be identically named after the 5 digit string is removed and I want those eliminated or moved.
any ideas? (17 Replies)
Hi,
I need to Change passwd for bulk servers using SSH script.
I have one server, from which i can reach all the servers without password via SSH.
There is some expect script, from which i can achieve it.
Can any one help me out here.
Thanks in advance.
Vicky (1 Reply)
Hi I have abc_ahb_one.v
abc_ahb_two.v
abc_ahb_three.v
........l
like this
-----upto
abc_ahb_ninety.v in some directory.
I need to change those file names to like below.
... (5 Replies)
Hi, all:
I'd love to use shell script to change all filenames under different folders once for all:
I've got over 100 folders, in each of them, there is a file named "a.ppm". I wanna change all these "a.ppm" to "b.ppm", and still . Visually, the directory structure looks like:
and hope... (1 Reply)
I have a filename with a bunch of periods that I want to replace with underscores, but I don't want to change the extension.
Ex: I want
file.test1.f-1.fig.eps
to be
file_test1_f-1_fig.eps
Using awk, the following line will replace ALL periods with underscores, but I want to leave the... (2 Replies)
Hi,
I have little experience on Shell scripts, I searched the forum but couldn't make out what I want.
I want to rename a set of files to a new file name
a_b_20100101
c_d_20100101
.......................
......................
I want to rename the files to
a_b_20140101... (5 Replies)
Hello,
I made a mistake in a script and now need to go back and change allot of filenames. I need to change "v4" in filenames to "v3". I was thinking of something like this.
#!/bin/bash
FILELIST=$(ls -f -R *)
for FILE in $FILELIST
do
# create new filename
... (5 Replies)
Hi All,
I am having Solaris 5.10 acting as NIS.
How do i change multiple user password in NIS in a batch.
I have predefined users with their passwords to be set:
Example:
user1 password1
user2 password2
Pls advise. (0 Replies)
Discussion started by: yogajwa
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)