I'm new to perl, I have input file that contains the string below:
This string has as line separator "ff45". So, I want to print each line but the code below is not working.
If the only condition is set as line separator "ff45", the output would be:
But when the line length is less than 7 I want to concatenate that small line with the next one,
So, the final output I'd like to get is below (red part is small line, in blue next line):
May you help me in how to get this.
PS: If possible, I'd like only to modify the code inside the while loop, since I want to incorporate as part of a bigger script.
Hi All,
i have a zip file like the format
794051400123|COM|24|0|BD|R|99.98
794051413727|COM|11|0|BD|R|28.99
794051415622|COM|23|0|BD|R|28.99
883929004676|COM|0|0|BD|R|28.99
794051400123|MOM|62|0|BD|R|99.98
794051413727|MOM|4|0|BD|R|28.99
794051415622|MOM|80|0|BD|R|28.99
... (30 Replies)
Hi, I have a noob question . Can someone help me how to concatenate line by line using this variables?
var1:
Apple|
Banana|
var2:
Red
Yellow
then how can I concatenate both line by line? in which the result would be:
Apple|Red
Banana|Yellow
just to generate a row result i was... (6 Replies)
Hi
I have a log file (say log.txt). I have to search for a line which has the string ( say ERROR) in the log file and copy 15 lines after this into another file (say error.txt). Can someone give me the code and this has to be in PERL
Thanks in advance
Ammu (3 Replies)
Can anyone help me get this small sed script to work in shell on the command line?
I need it in a one liner really as i want to edit many scripts in a for loop and dont want to have to invoke a separate script each time.
#!/bin/sh
sed '/mailx\ -s.*$ {
i\
#Comment above mailx line ... (5 Replies)
Hi:
I use the snmpget command everyday. And Im getting tire of writing the same line evertime I have to verify something.
Example of the line:
snmpget -c DreamTeam dal2-hr2 ifAlias.227
The .227 its the circuit interface and also its variable; could be any other number depending on the... (13 Replies)
so in unix this command works works and shows me a list of directories
find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt
but when i try running a perl script to run this command
my $query = 'find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt';... (2 Replies)
Unix box server version
***********
>uname -r
B.11.00
>echo $SHELL
/usr/bin/ksh
--> in this server, I have the path like /IMbuild/dev/im0serv1
---> in that directory I have the folders startup(.jsp files nearly 100 jsp's ) and scripts(contains .js files nearly 100 files) ... (9 Replies)
I have several hundreds of tiny files which need to be concatenated into one single line and all those in a single file. Some files have several blank lines. Tried to use this script but failed on it.
awk 'END { print r } r && !/^/ { print FILENAME, r; r = "" }{ r = r ? r $0 : $0 }' *.txt... (8 Replies)
Hi,
Do anybody experience how to concatenate multiple line into one line by using awk or perl command?
Input file:
>set1
QAWEQRQ@EWQEASED
ASDAEQW
QAWEQRQTQ
ASRFQWRGWQ
From the above Input file, it got 5 lines
Desired output file:
>set1... (6 Replies)
I am looking for help in processing of those options: '-n' or '-p'
I understand what they do and how to use them.
But, I would like to use them with more than one file (and without any shell-loop; loading the 'perl' once.)
I did try it and -n works on 2 files.
Question is:
- is it possible to... (6 Replies)
Discussion started by: alex_5161
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)