12-25-2008
Quote:
Originally Posted by
cfajohnson
I don't know what you mean by <column>.
The field delimiter in both files must be the same for join to work.
You can use tr to convert one file if it is not the same as the other.
what i mean sir is..
file1
1010<tab>20<tab>34
and in other is
file2
1010:33:45
so the result is
file3
1010:20:33:34:45
something like that sir...
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I am trying to change permission for all subdirectories and files inside folder1 so this is what i came with after many seraches on the internet. man find and man chmod mirc and few articles.
find .public_html/folder1 -print0 | xargs -0 chmod 777
what's wrong with this command?
it is FTP... (33 Replies)
Discussion started by: smoother
33 Replies
2. UNIX for Advanced & Expert Users
Hello Everyone!
I'm trying to combine output for standard output and for possible standard error to the log file. I was trying to use tee command, but it turned out if error occurred error output will be send to the screen only and will not be redirected with tee command to the log file.
Anyone... (11 Replies)
Discussion started by: slavam
11 Replies
3. Shell Programming and Scripting
I have two files and I need to combine their values
example:
i have file1 and file2
in file1
1019 40 50
1119 55 62
in file2
1019 33 10
1119 12 44
desired output should be:
file3
1019:40:33:50:10
1119:55:12:62:44 (5 Replies)
Discussion started by: jantzen16
5 Replies
4. Shell Programming and Scripting
nawk -F "|" 'FNR==NR {a=$2 OFS $3 OFS $4 OFS $5 OFS $6;next}\
{if ($5 in a)print $1,"test",$5,a, $2,$3,$4 OFS OFS OFS OFS OFS OFS OFS OFS $2-$3-$4 ; \
else print $1,"Database",$5 OFS OFS OFS OFS OFS OFS $2,$3,$4 OFS OFS OFS OFS OFS OFS OFS OFS $2-$3-$4 }' OFS="|" \
file1 file2 > file3
This... (5 Replies)
Discussion started by: pinnacle
5 Replies
5. UNIX for Dummies Questions & Answers
Hi,
I want to combined 500 .txt files (each file only has one line) to a single txt file (A.txt).
for example,
A1.txt with
12
23
34
45
A2.txt with
56
67
78
89
...etc, so I have A1.txt, A2.txt... , A499.txt, A500.txt (1 Reply)
Discussion started by: AMBER
1 Replies
6. Shell Programming and Scripting
Hi ,
I have a typical situation. I have 4 files and with different headers (number of headers is varible ).
I need to make such a merged file which will have headers combined from all files (comman coluns should appear once only).
For example -
File 1
H1|H2|H3|H4
11|12|13|14
21|22|23|23... (1 Reply)
Discussion started by: marut_ashu
1 Replies
7. Shell Programming and Scripting
I have two CSV lines, I.e.:
Line 1 = the,quick,brown,fox, ,jumps, ,the, ,dog
Line 2 = the,quick,brown,fox, , ,over, ,lazy,dog
Literally, columns missing from line 1 exist in line 2.
Any suggestions on quick ways to combined these two lines into one line:
New line:... (2 Replies)
Discussion started by: msf004
2 Replies
8. UNIX for Dummies Questions & Answers
Hello,
i need to search one word (snp1) from many files and copy the content of the columns of this word in new file.
example:
file 1:
SNP BP CHR P
snp1 1 3 0.01
snp2 2 2 0.05
.
.
file 2:
SNP BP CHR P
snp1 1 3 0.06
snp2 2 2 0.3
output... (6 Replies)
Discussion started by: biopsy
6 Replies
9. Shell Programming and Scripting
Hi everybody!
I try to printout a csv-file with the exeption of cell $1 and $4.
what i tried so far:
awk '{for(i = 1; i<=NF; i++);if(i == 1 || i == 4);else print($i)}' file.csv
..any ideas how it work and why my example fails?
Thanks in advance!
IMPe (3 Replies)
Discussion started by: IMPe
3 Replies
10. Shell Programming and Scripting
have written a combined sed+awk to perform a lookup operation which works but looking to enhance it.
looking to match a record using any of the comma separated values + return selected fields from the record - including the field header. so:
cat foo
make,model,engine,trim,value... (6 Replies)
Discussion started by: jack.bauer
6 Replies
LEARN ABOUT DEBIAN
bup-margin
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)