Hi List,
Is it possible to pass one argument to a shell program
eg) there is a shell program abc which takes one arguments
abc one
Due to some reasons I pass
abc one two
Now one,two must be considered as "one" argument to the shell programs. Any suggestions,hints are welcome.
... (3 Replies)
Hi All,
I need some help/ideas in coming up with a shell script.
Basically, the script should install 1 or 2 or 3 packages based on the input arguments.
For example, if I type in pkgscript.sh a1 a2 a3, it should install all the 3 scripts and pkgscript.sh a1 should install only a1.
If a... (3 Replies)
I have to write a C program using sys call (read, no fread) to read from shell all the parameters, without know how many are them.
I tryed in some ways, but I have no success.
Any Idea?
Can I use read to read from stdin? (1 Reply)
Hello,
I have to make a shell script doing that :
the program tests if there is an argument, if there is it checks whether this is a directory or not, If it is it opens it.
for any .c file in the directory it prints 2 lines in the screen :
the dependence line of the .o and compiler commend... (1 Reply)
1. The problem statement, all variables and given/known data:
Problem 1:
I need to create a shell script the takes three arguments and echo's out "There once was a ____that____who like to_____"
The arguments go where the blanks are.
Problemt 2:
-Do an LS and store the... (4 Replies)
Hi,
I have a shell script, when run it i get a prompt to enter arguments say 1 for doing my next task otherwise q for quit.
What I am trying to do is run the shell script with the argument passed in however it does not seem to work.
This is what I did
./test.sh 1
Instead it printed the line... (6 Replies)
Hi All,
I am using the script for creating local queue and passing the arguments while running the script as below
n=0
while
do
e=`expr $n + 3`
echo 'DEFINE QL('$e') MAXDEPTH('$6') MAXMSGL('$7') DEFPSIST('$8') '$9'' | /apps/mqm_opt/bin/runmqsc $2
n=`expr $n + 1`
done
Running the... (5 Replies)
While I am trying to check the filename/s in IF statement of a shell script (RedHat Linux 6) I am getting below error:
File check:
filename_time2=`date --date='yesterday' +%Y-%m-%d`
cd /location/of/the/files/to/copy
if
then
cp server.log-$filename_time2* ../archive/new... (5 Replies)
Discussion started by: Dip
5 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)