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1. UNIX for Beginners Questions & Answers
for example i have a directory
home/solaris/unix/samplefiles/
with defaults files in it.. those default files have 1 word in common "UNIX". how can i list the files without "UNIX" words in it using grep command
thanks,
im using unix solaris, korn shell.. (1 Reply)
Discussion started by: daveaztig14
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2. Shell Programming and Scripting
Hello,
I am running below command as root user
#nodetool cfstats tests | grep "Memtable switch count"
Memtable switch count: 12
Where as when I try to run same command as another user it gives different result.
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3. Shell Programming and Scripting
grep -i -f panel_genes.txt hg19_refGene.txt > match.txt
seems to be pulling names the do not exist in the input file (panel_genes.txt) - the output is attached as well (match.txt)
For example, RNF185 or ZNF146 are not genes in the input. I am trying to match the input file genes only and am... (9 Replies)
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4. Shell Programming and Scripting
Hi
I have lots of file in on folder and i want to egrep from only few files.
List of files......
Polt_KJ_430_OutputRBS_istUt_CR2.log
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Polt_LN_2230_OutputRNC_Hth_CLKLKL.log
Solt_KJ_430_OutputRBS_istUt_CR2.log
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5. Shell Programming and Scripting
Hi,
I have around 500 Text files and Each file will be having either
String1 or String2.
I want to list the file only which has String1 and Sting2 in a single command.. (5 Replies)
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6. Shell Programming and Scripting
Hi, im taking an entry Unix class, and as part of my lab assignment I have to copy all files in the /home/david/lab3 directory that have the file extension .save to your lab3/temp directory. I'm having trouble getting the grep to do anything worth while
I've been trying to do:
cp... (6 Replies)
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7. Shell Programming and Scripting
i want to search in the current directory all the files that contain one word for example "hello"
i want to achieve it with the grep command but not with the grep * (2 Replies)
Discussion started by: aintour
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8. UNIX for Advanced & Expert Users
I am doing "ps -f" to see my process.
but I get lines that one of it represents the ps command itself.
I want to grep it out using -v flag, but than I get another process that belongs to the GREP itself :
I would like to exclude
# ps -f
UID PID PPID C STIME TTY TIME CMD... (2 Replies)
Discussion started by: yamsin789
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9. UNIX for Dummies Questions & Answers
hi all
i have directory
/usr
under this directory i have subdirectories
tmp1,tmp2,tmp3
like this
/usr/tmp1
/usr/tmp2
/usr/tmp3
and so on
i want to search string in files (i don't know the name of the files)and i want to serch it in all the directories under the /usr
how shell i do... (3 Replies)
Discussion started by: naamas03
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10. Shell Programming and Scripting
What is the meaning of this
grep -v $object grant_BU.sql>temp (1 Reply)
Discussion started by: debasis.mishra
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bup-margin(1) General Commands Manual bup-margin(1)
NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS
--predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO
bup-midx(1), bup-save(1)
BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown- bup-margin(1)