09-06-2011
Quote:
egrep -v [a-zA-Z] <filename>
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I would like to know how to solve one of my problems using expert unix commands.
I have a file with occasional blank lines;
for example;
dertu
frthu
fghtu
frtty
frtgy
frgtui
frgtu
ghrye
frhutp
frjuf
I need to edit the file so that the file looks like this; (10 Replies)
Discussion started by: Lucky Ali
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2. Shell Programming and Scripting
Hi all,
This should be very easy but I can't figure it out...
I have a file that looks like this:
@SRR057408.1 FW8Y5CK02R652T length=34
AGCAGTGGTATCAACGCAGAGTAAGCAGTGGTAT
+SRR057408.1 FW8Y5CK02R652T length=34
FIIHFF6666?=:88@@@BBD:::?@ABBAAA>8
@SRR057408.2 FW8Y5CK02TBMHV length=52... (1 Reply)
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3. Shell Programming and Scripting
abc.dat
tty cpu
tin tout us sy wt id
0 0 7 3 19 71
extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.0 133.2 0.0 682.9 0.0 1.0 0.0 7.2 0 79 c1t0d0
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I want to skip first 5 line... (4 Replies)
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4. Shell Programming and Scripting
Could someone please point me in the right direction with the following?
I have a program that generates logs that contains sections like this:
IMAGE INPUT
81 0 0.995 2449470 0 1726 368 1 0.0635 0.3291
82 0 1.001 2448013 0 1666 365 1 0.0649 ... (4 Replies)
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5. UNIX for Dummies Questions & Answers
##### (0 Replies)
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6. UNIX for Dummies Questions & Answers
I have a spreadsheet of extremely long rows of numbers. I want to print only the last column. Tried using printf but there seems to be too many rows.
example:
3 100 34 7 23 0 8 ..... X
400 203 778 1 ..........Y
58 3 9 0 100 ..........Z
I only want to print X, Y and... (1 Reply)
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7. Shell Programming and Scripting
Is there other way then this only solution I have found to print lines with numbers only?
file.txtone
two
three
3
four
five
5tt
6gfjdfgdf
9
66
six
0
seven
7
eight
546546
gffdg445gfg
fd644 (7 Replies)
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8. Shell Programming and Scripting
Hi
I am getting an argument which specifies the range of numbers. eg: 7-15
Is there a way that i can easily (avoiding loop) print the range of number between and including the specified above.
The above example should translate to 7,8,9,10,11,12,13,14,15 (3 Replies)
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URGENT HELP IS NEEDED!!
I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but
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... (1 Reply)
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10. UNIX for Beginners Questions & Answers
I have a directory of files, I can show the number of lines in each file and order them from lowest to highest with:
wc -l *|sort
15263 Image.txt
16401 reference.txt
40459 richtexteditor.txt
How can I also print the number of unique lines in each file?
15263 1401 Image.txt
16401... (15 Replies)
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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)