I have finally found. The following command find the latest file, including the handling of filename with spaces.
find . -type f -printf %p";" | xargs -d ";" ls -t | head -1
So long as xargs only invokes ls once.
---------- Post updated at 05:43 PM ---------- Previous update was at 05:36 PM ----------
Quote:
Originally Posted by frans
I don't think there's any need for that while loop. You should be able to get it done using find's exec primary.
Save yourself a few calls to stat as well.
Also, if you reverse the sort order, you can use head and finish faster (no need to pipe everything through cut and tail).
I need to perform a non-recursive find in Unix. Sounds simple, but it doesn't actually work. The command ALWAYS searches through the subdirectories.
Any ideas? I am on DEC Unix :-( (3 Replies)
Hey Guyz I have a requirement something like this..
a part of file name, date of modification of that file and a text is entered as input.
like
Date : 080206 (MMDDYY format.)
filename : hotel_rates
text : Jim
now the file hotel_rates.ZZZ.123 (creation date is Aug 02 2006) should be... (10 Replies)
Hi,
Would appreciate if someone could help me with the following requirement.
Say I have a directory where a file called abc_$timestamp.txt is created couple of times in a day.
So this directory would have files like
abc_2007-03-28-4-5-7.txt
abc_2007-03-28-3-5-7.txt... (4 Replies)
Hi guys,
I have a directory in UNIX having files with the below format, i need to pickup the latest file having recent timestamp embedded on it, then need to rename it to a standard file name.
Below is the file format:
filename_yyyymmdd.csv, i need to pick the latest and move it with the... (2 Replies)
Please help me out how to identify the latest file in one directory by looking at file's timestamp or datestamp. You can say using system command. Thanks (10 Replies)
Is there a way to use find command to get the latest file and cp it into a certain dir at the same try.
example find the latest file and cp to a diff dir. (5 Replies)
Hi All,
This is the first time I have posted to this forum so please bear with me. Thanks also advance for any help or guidance.
For a project I need to do the following.
1. There are multiple files in multiple locations so I need to find them and the location. So I had planned to use... (9 Replies)
Is there a way to use the find command to recursively scan directories for files greater than 1Gb in size and print out the directory path and file name only?
Thanks in advance. (6 Replies)
I have tried the following code and with that i couldnt achieve what i want.
#!/usr/bin/bash
find ./ -type f \( -iname "*.xml" \) | sort -n > fileList
sed -i '/\.\/fileList/d' fileList
NAMEOFTHISFILE=$(echo $0|sed -e 's/\/()$*.^|/\\&/g')
sed -i "/$NAMEOFTHISFILE/d"... (2 Replies)
Discussion started by: gold2k8
2 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)