09-26-2016
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello,
I am having trouble with the syntax with a conditional statement in a BASH script involving multiple conditions. Any suggestions would be greatly appreciated!
if ; then
array=("${array}" "$dnNum" )
fi
i receive this error:
./testscript: ' (4 Replies)
Discussion started by: grandtheftander
4 Replies
2. Shell Programming and Scripting
Guys, Im trying to have a script that evaluates multiple conditions :
test.sh:
if
then
echo "host $1"
else
if
then
echo "host $1"
else
echo $1 not valid
exit 1
fi
when I do
./test.sh brazil1
I get: (4 Replies)
Discussion started by: bashshadow1979
4 Replies
3. Shell Programming and Scripting
I have a script that runs on multiple servers. What I want to do is have the script do the following:
if $(hostname) is equal to server or server2
then
TO_DIR=go
else
TO_DIR=stop
fi
I have tried:
if
if ]
Server is hpux.
any ideas? (1 Reply)
Discussion started by: cpolikowsky
1 Replies
4. Shell Programming and Scripting
Hi All,
I am new to shell scripting.
Can any one say what is wrong in this if statement, that uses multiple conditions
if
then
***************
else
if ( -z $pcs && "$night_time_calc" > "$night_time" )
then
********************************
... (4 Replies)
Discussion started by: ssenthilkumar
4 Replies
5. Shell Programming and Scripting
Hi,
When i use the below code snippet in my shell script OFC_10.sh:
if
then
echo "Success"
exit 2
elif
then
echo "Failure"
exit 6
I get the error message:
./OFC_10.sh: line 41: '
./OFC_10.sh: line 45: '
Line 41 is the line where If loop starts and line 45 is... (2 Replies)
Discussion started by: shrutihardas
2 Replies
6. Shell Programming and Scripting
Hi, my requirement is that my builds should not be built if the current hour is greater 3 but not (between 12 and 15), I'm trying to write a shell script for this but there is always an error
hour=$1
echo "hour:$hour"
if && ! && ]; then
echo "exit"
else
echo "enter"
fi
... (9 Replies)
Discussion started by: kgsrinivas
9 Replies
7. UNIX for Dummies Questions & Answers
Hello Unix-Forums!
It has been a long time since my last post, but finally I've got a new question:
I know in case you can use multiple patterns by
case $var in
a|b|c|ab)
and so on.
But how would I place an OR between
if ]
then
...
if ]
then
...
I want to execute the "..." if... (3 Replies)
Discussion started by: intelinside
3 Replies
8. Shell Programming and Scripting
Hi
I've been trying to get this to work but so far no luck.
#!/usr/bin/ksh
unset EXP
APP=$1
EXP=`sed -n "/${APP}/p" tIclrpt.out |awk '{print $7}'|sed '/^$/d'`
EXT=`sed -n "/${i}/p" ${SESLOG} |awk '{print $4}'|grep "${i}"`
EXEM=/path/to/fail
ACTI=/path/to/success
if ||
then... (10 Replies)
Discussion started by: techy1
10 Replies
9. Shell Programming and Scripting
Fellas,
Am new to unix os/ and here the situation , I am trying to write multiple condition statement inside if but it throws me a error
here is my piece of code ,
if ] && ] && ]
then
commands
fi
error : line 15 : `
can someone please advise me how to fix it
Please use... (7 Replies)
Discussion started by: xeccc5z
7 Replies
10. UNIX for Beginners Questions & Answers
I am analyzing one of the scripts written by another person.script is having multiple if conditions and everything are nested.The code is not formatted properly.Is there any way to identify in Unix to identify begin and end of a particular if block? (6 Replies)
Discussion started by: vamsi.valiveti
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)