10-14-2011
i am getting error as below:
Use of uninitialized value in concatenation (.) or string at rr.pl line
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I am trying to use the split commad to seperate string reading from file. but it dosent give me a correct result. can some body tell me what is the wrong in following scritp.
#!/usr/bin/perl -w
#use CGI qw(:standard); ... (2 Replies)
Discussion started by: maheshsri
2 Replies
2. Shell Programming and Scripting
how do i get the following type of information when we have a time command in sh script.
0.01user 0.00system 1:32.98elapsed 0%CPU (0avgtext+0avgdata 5360maxresident)k
0inputs+0outputs (342major+0minor)pagefaults 0swaps
I always see the following for the time command
real 0m0.000s
user ... (7 Replies)
Discussion started by: kris_search
7 Replies
3. Shell Programming and Scripting
hi
Can anyone explain me how these two commands awk and grep works in a ksh shell
Thanks
Babu (1 Reply)
Discussion started by: ksmbabu
1 Replies
4. Shell Programming and Scripting
Is it possible to convert EXONtoBED (Output to input)?
1. BEDtoExon.sh
-------------------
awk '{
n11 = split($11, t11, ",")
n12 = split($12, t12, ",")
for (i = 0; ++i < n11;) {
s12 = $2 + t12
print $1, s12, s12 + t11, i”E_”$4
}
}' $1
... (1 Reply)
Discussion started by: quincyjones
1 Replies
5. Programming
Hello experts
I want to execute a awk command, which reads from txt files and sums the numbers from the first column for those listed only inside a <init> block -- The awk command is like
awk '/<\/?init>/{x = !x}x{a++}x && a > 2{sum+=$1}END{printf"%E" "\n", sum}
So, I want to execute... (2 Replies)
Discussion started by: Alkass
2 Replies
6. Shell Programming and Scripting
Hi All,
I have written a script to check the file system usage and to delete the files which is consuming more space.Please check whether the script is corrcet
#Script Starts here
#!/usr/local/bin/perl
#Program to find the disk space and to delete the older files
#Checks the type of OS... (8 Replies)
Discussion started by: arunkarthick
8 Replies
7. Shell Programming and Scripting
Hi Experts,
I have a Text file generated as below;
<NAME>
NEW#<technicalName><TAB> <Version>
OLD#<technicalName><TAB> <Version>
e.g.
CH_PPV_AUDIT_DISTRIBUTOR
NEW#EL_CFG_FTP_DISTRIBUTOR 2.1.0.upc2
OLD#EL_CFG_FTP_DISTRIBUTOR 2.1.0.upc1... (19 Replies)
Discussion started by: rajangupta2387
19 Replies
8. HP-UX
Hi Experts,
I am executing multiple instances(in parallel) of perl script on HP-UX box.
OS is allocating substantial amount of CPU to these perl processes,resulting higher cpu utilization.
Glance always shows perl processes are occupying majority of the CPU resource. It is causing slower... (2 Replies)
Discussion started by: sai_2507
2 Replies
9. How to Post in the The UNIX and Linux Forums
Hi,
I want to do file format using awk script, for that i wan to use 'tail'. Here is the scenario. I will be having set of files in a directory. Those files i need to write to another directory with same file name, but while writing the file to out directory, i need to write the last line as... (3 Replies)
Discussion started by: Venkata Madhu
3 Replies
10. Shell Programming and Scripting
Hi,
I have a shell script, In which i have variable "var1" and some perl command inside shell script.
export var1='coep -n rst-a2p-hinje.vci.all.com -c'
perl -pi -e 's/^/coep -n rst-a2p-hinje.vci.all.com -c /' command.txt
currently I am adding value of var1 in command.txt file by... (2 Replies)
Discussion started by: rakeshtomar82
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)