02-06-2011
What exactly are you trying to do with this script?
10 More Discussions You Might Find Interesting
1. Programming
void redirect(int argc, char *argv)
{
int flag;
if (strcmp(argv, ">") == 0)
flag = 1;
else if (strcmp(argv, "<") == 0)
flag = 2;
else if (strcmp(argv, ">>") == 0)
flag = 3;
else
printf("Something Wrong,Please Check!\n");
switch (flag) {... (5 Replies)
Discussion started by: zhshqzyc
5 Replies
2. Shell Programming and Scripting
Hi,
I have script which is based on TCL and expect. It is written to test my code. It usually runs fine for a while and hangs after sometime.
Code snippet
set l_temp_timeout $timeout
OUTPUT_LOG2 2 >>>$expect_out(buffer)<<<
OUTPUT_LOG2 2... (2 Replies)
Discussion started by: naveenpn
2 Replies
3. Shell Programming and Scripting
I am unable to use STDIn redirection with < (commands)
When I do the following, both approaches work and give the same results:
1.
$ printf "aaa\nbbb\n" > file1
$ printf "111\n222\n" > file2
$ cat file1 file2
aaa
bbb
111
2222.
$ cat <(printf "aaa\nbbb\n") <(printf "111\n222\n")
aaa... (8 Replies)
Discussion started by: metaltree
8 Replies
4. Shell Programming and Scripting
Hello,
I've managed to get my .procmailrc file to work. At least it triggers a script which creates a file. But the file is empty. How do I get at the data that's been piped? I've done much creative googling to no avail. I belive it should be in stdin, but I can't figure out how to access... (4 Replies)
Discussion started by: mmesford
4 Replies
5. Shell Programming and Scripting
Running on AIX 5.3L.
I have a program "foo" written in Fortran that requires 3 levels of inputs from stdin (command prompt).
> foo
Enter Input 1: a
Enter Input 2: b
Enter Input 3: c
running foo
success!
>
How do I get a shell script to run this automatically?
> echo "a" | foo... (2 Replies)
Discussion started by: discoganya
2 Replies
6. Shell Programming and Scripting
Hi ,
I have script in that , i uninstall rpm using rpm -ef $rc1
now my query is rpm -ef is asking user input DO YOU Want To continue (YES/NO) for each uninstalltion.
now i want to supply YES variable when it asks for above statement .
so that i dont have to give user input from... (4 Replies)
Discussion started by: raghavendra.nsn
4 Replies
7. Shell Programming and Scripting
I'm trying to automatically pass user input values into a script that is being called from another script, below is my current script and I added a comment next to the script where it asks user to enter input value.
Thanks,
mbak
#!/bin/ksh
echo " Adding disks for DB server then Enter YES... (2 Replies)
Discussion started by: mbak
2 Replies
8. UNIX for Beginners Questions & Answers
Say I had an extremely simple script called testScript.sh:
#!/bin/sh
echo $1
and I invoked it as:
source testScript.sh <<< x
or
source testScript.sh <<< inputFile.txt
When I do the above the values don't appear in the echo statement, and I know that is because in the echo... (5 Replies)
Discussion started by: steezuschrist96
5 Replies
9. Shell Programming and Scripting
I have a script that looks like this:sed -f myfile.sed $1 > $1.out called myscript and would like to change it so the parameter isn't necessary: ls *.idx | myscript | xargs some_command What do I need to add so it can run either way?
TIA
---------- Post updated at 09:41 AM ----------... (1 Reply)
Discussion started by: wbport
1 Replies
10. Shell Programming and Scripting
I have put a script inside bash_profile of user "root". That script executes when we do "sudo su -" and prompts with a question : "Why are you logginf as root?" and users have to pass the reason then they get prompt. Inside script we have used "read -p input" to take input from user.
I am a... (3 Replies)
Discussion started by: shekhar_4_u
3 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)