Hi this is my first time posting ever. I'm relatively new in using AWK/SED, I've been trying many a solution. I'm trying to replace the 59th column in a file where if I encounter '' then I would like to replace it with the word NULL.
example
0 , '' , '' , 0 , 195.538462
change it to
0... (5 Replies)
Hi All,
I already have a code which replaces column 14 of NPBR.XTR.tmp with column 8 of NPBR3G.XTR.final
awk -F'\|' 'FNR==NR{a= $2"^"$8;next;}a{split(a,b,"^");$8=b;$14=b;}1' OFS="|" ${SHTEMP}NPBR3G.XTR.final ${SHTEMP}NPBR.XTR.tmp > ${SHTEMP}NPBR.XTR.final
I also need to replace column 15... (2 Replies)
Hello All,
I am new to unix scripting and wanted to know, is it possible if we find any null value or blank record in the text file.
For example we have a text file with only one column and there are 90 records.
But some times we will have a null value or blank row record in the text file.
I... (4 Replies)
I have a file with the following format:
X|High|2|GIC|DM||XHM|||6 Months
X|Moderate|2|GIC|DM||XHM|||6 Months
X|High|2|GCM|DM||XSF|||6 Months
X|Med|2|GCM|DM||XSF|||6
Here there are ten columns but I need to print rows having blank records in any of the rows (except for 6th,8th and 9th... (10 Replies)
I am working on a file with several columns as below
MO_NAME,FAULT_TYPE,CLASS,CODE1,CODE2,CODE3
RXOCF-101,BTS INTERNAL,FAULT CODES CLASS 2A,53,58
RXOCF-101,BTS INTERNAL,FAULT CODES CLASS 2B,24
RXOCF-101,BTS INTERNAL,FAULT CODES CLASS 2A,33
RXOCF-101,BTS INTERNAL,FAULT CODES CLASS 2D,57 ... (12 Replies)
I am trying to replace the partcular columns(Col3,col5,col20,col44,col55,co56,col59,col60,col61,col62,col74,col75,col88,col90,col91,col93,col94,col95) with empty
Input file
Col1,col2,col3,col4,col5------,col100
1,2,3,4,5,---------,100
3,4,5,6,7,---------,300
Output : ... (3 Replies)
Using awk I am trying to replace all blank or null values with a . in the tad delimited input. I hope the awk is close. Thank you :).
input
name test
sam 1
liz 2
al
1
awk
awk 'BEGIN{FS=OFS="\t"}{for(i=1;++i<NF;)$i=$i?$i:"."}1'input
awk 'BEGIN { FS =... (6 Replies)
Hi Experts,
Please bear with me, i need help
I am learning AWk and stuck up in one issue.
First point : I want to sum up column value for column 7, 9, 11,13 and column15 if rows in column 5 are duplicates.No action to be taken for rows where value in column 5 is unique.
Second point : For... (12 Replies)
I have a csv which has lot of columns . I was looking for an awk script which would extract a column twice. for the first occurance the header and data needs to be intact but for the second occurance i want to replace the header name since it a duplicate and extract year value which is in ddmmyy... (10 Replies)
Hello,
This post is already here but want to do this with another way
Merge multiples files with multiples duplicates keys by filling "NULL" the void columns for anothers joinning files
file1.csv:
1|abc
1|def
2|ghi
2|jkl
3|mno
3|pqr
file2.csv:
1|123|jojo
1|NULL|bibi... (2 Replies)
Discussion started by: yjacknewton
2 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)