That's because either the search string or the replacement string has embedded white spaces and since you've allowed the shell to interpret those white-spaces as word-separators (by not double-quoting the variables), it is breaking the sed command.
Use
Code:
sed 's/'"$sub_fun"'/'"$To_sub"'/g'
This User Gave Thanks to elixir_sinari For This Post:
Hi all
I have a script as follows :-
#!/usr/bin/ksh
IDT=`date +"%OH%M%S"`
while true
do
echo ${IDT}
sleep 1
done
I need the time to show me the current runtime value for the time, however this returns the time as at the start of the script.
Any ideas.
Thanks
JH (4 Replies)
Hi,
I have a program in which i have to substitute a TAG in a file with the value of a variable.
Code Snippet:
----------------
myvar=1234
sed 's/_TAG_/$myvar/' infile outfile
When I run this command, the _TAG_ in the "infile" is substituted with "$myvar" but NOT the value "1234"... (1 Reply)
Can SED be used to substitute a character (y) with a character (Y) in a specified field?
File has 12000 : delimeted rows as;
HHC 1 BDE:Lastname, Firstname MI:firstname.mi.lastname@mil:SGT
HHC 2 BDE:Lastname, Firstname MI:Firstname.MI.Lastname@mil:SGT
I wish to replace the capital letters... (6 Replies)
Hi all u brilient people on the forum...
I am trying to call the variable value in awk command for search pattern /start/,/stop/ but i am nt able to do this ....
wat i did is ..i have created two variable YESTERDAY and TODAY and passed the y'day n 2'days dates in it...like this
... (14 Replies)
have a fileA containing about 260 lines wherein i have to match 2 lines
fileA
blah blah
OF 90 DAYS DOCS PERIOD 12/06/0"
Pairs_Id 52006
Amount1 -300000.0
Amount2 15091500.10
Codifiers_Id 0
OriginalId 0
EOT
--blah blah blah
TBL Tradt_IN
CardRate 0.0
hashAmount -15091500.0... (2 Replies)
Hi All,
my requirement is as below.
I need to replace a value in a particular column with a substitution variable(date value) and modified value of the current column value in the same position.
for ex.
i have a record like
02;aaaa;bbbbb;cccccc;dddddd;123456789;hhhhh;12hs;asdf ;... (3 Replies)
Hello Exprets,
I have a requirement where i have to subtitue a word with another word.
$eachline| sed 's/*$//'
a) $eachline will hold a value a path
for example
user/oracle/Test_admin/myfolder/bakup/part_bkptemp_part_bkp_repeated/list.txt
b)
$eachline| sed 's/*$//'
will give me the... (3 Replies)
Hi All,
OS HPUX 11.11
I am using following script to take controlfile backup. I have used SID variable to hold "ffin1" value, which I again subsitute in "'/db/ffin1/home/oraffin1/$SID_$wdate.ctl'" command. Well, after running this, SID variable does not subsittue it's value, while wdate... (6 Replies)
Hi guys,
I'm trying to figure out how to use a shell variable inside my sed command.
I just want to remove a certain part of a path. I've tried three different combinations and none of them work. Here are the three combinations:
echo $file | sed 's/'$test'//'
echo $file | sed "s/$test//"... (7 Replies)
Hey guys,
I know that title is a mouthful - I'll try to better explain my struggles a little better...
What I'm trying to do is:
1. Query a db and output to a file, a list of column data.
2. Then, for each line in this file, repeat these values but wrap them with:
ITEM{
... (3 Replies)
Discussion started by: ampsys
3 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)