10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
This has no error
awk '($8==150) && ($4>=11.001 && $4 <= 12) && ($5>=91.001 && $5<=92){print}' OFS="\t" file
following are unable to run in csh
this is giving error awk: line 1: syntax error at or near not even working in terminal
awk '($'$gr'=='$grn') && ($'$ll'>='$Y' && $'$ll' <= '$Ym')... (1 Reply)
Discussion started by: nex_asp
1 Replies
2. Shell Programming and Scripting
First post on here. So I use csh shells for my research (physics... not a CS person). I am trying to rerun the same scripts, but there are ~10 files that have similar variables that I have to change for each different configuration, so I would like one central file for the variables I change that... (3 Replies)
Discussion started by: sabrepride
3 Replies
3. UNIX for Dummies Questions & Answers
I found my answer... (2 Replies)
Discussion started by: sjung9442
2 Replies
4. Shell Programming and Scripting
Hi all,
i need help with this code
set login = (`cut -d ":" -f1 /etc/passwd.2001`)
set group = (`cut -d ":" -f4 /etc/passwd.2001`)
set name = (`cut -d ":" -f5 /etc/passwd.2001 | cut -d ":" -f1`)
set i = 1
while ($#login > 0)
set pom = `last $login | wc -l`
if ($pom < 3) then... (1 Reply)
Discussion started by: Casualty
1 Replies
5. Shell Programming and Scripting
Hi All,
I have a small issue with my csh script which I am using to FTP a file. What I know is...there are two commands to execute script.. 'sh <file>' & '\<file>'. When I execute my script with command 'sh <file>', it gives me syntax error while it runs successfully with command '\<file>'. I am... (3 Replies)
Discussion started by: ndd
3 Replies
6. Shell Programming and Scripting
I am getting an error and can't figure out the problem
breaksw: endsw not found.
Problem has been solved now (0 Replies)
Discussion started by: kristinu
0 Replies
7. Shell Programming and Scripting
Hi All,
I have the following script.
#!/bin/csh
#
# createDATfile.sh
#
cd /export/home/fastserv/bin
source /export/home/fastserv/bin/dbenv.sh
echo `date` >> /export/home/fastserv/bin/log.txt
echo "%INF% Starting send of current FASTSERVICE batch" >>... (4 Replies)
Discussion started by: rahulrathod
4 Replies
8. Shell Programming and Scripting
Hello this my first post, so i hope you help me
echo -n "Choose which square you want to hit of PL2 grid "
set pl2_square = $<
set i = 1
while ($i <= 6)
if ($pl2_square == $pl2_ships) then
$pl2_ships = x
echo ""
echo ""
echo "PL1 has hitted a square of PL2"
echo... (5 Replies)
Discussion started by: amaj1407
5 Replies
9. Shell Programming and Scripting
Hi All,
Just recently started using a program in Unix for a client. I was sent a script to use but for some reason it's not working. The person who created the script first suggested I may need to edit the first line of the script so that it has the correct path for the csh file: #!/bin/csh -f... (3 Replies)
Discussion started by: gmalt
3 Replies
10. Shell Programming and Scripting
I've written a csh shell script to number each line of a file.
Firstly, the program count the number of the file and create a file with number at the front. Then, combine the file together.
when i call the program manually, it works.However, when i set it in the cronjob, the output always leaves... (3 Replies)
Discussion started by: fung_donald
3 Replies
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)