The script expects to see the resolve.conf file, so is correctly identifying the missing file - touching the file removes the error.
There are a number of options, the simplest is probably to do;
Alternatively you could send the stderr to /dev/null
Your final option would be to modify the script and put the offendin part of the script inside a test condition - running if the resolv.conf file exists.
what's the proper syntax to redirect output, including all errors?
ls -la > direct.list makes out put file direct.list
but if i'm running a script and i want to include the errors, would i type something like:
myscript.scr 2> out_list.txt or will that get the errors only? (1 Reply)
I want to check whether the variable read from the console is number or character , so i used echo $option|grep and checked the reuslt returned by grep cmd using $?
But since I use echo the value is getting printed in the screen , I want to supress the o/p. Can anyone suggest how this can be... (1 Reply)
hi
I'm new here so my question maybe be retarded or out of place:
Is there a way to suppress the "No such file or directory" error message when using the "ls" command ?
thanks (5 Replies)
I have code which at the moment only catches the command/program output if the program runs correctly, which is a small problem as I would like to capture everything from stdout inclusive of errors
FILE *fp;
fp = popen(command.c_str(), "r");
while(fgets(cbuf, 1024, fp) != NULL){
.....do stuff... (1 Reply)
Hi,
I'm trying to spawn a telnet process and trying to do some actions in the remote host using expect script. I would like to know how to suppress all the output in order the user using the script should not be able to see any actions done on the remote host. I tried using the "log_user 0"... (8 Replies)
Need help redirecting output to a file including errors if any,I have 2 script namely push.ksh and run.ksh, I'm scp'ing push.ksh to another server and executing remotely via run.ksh, the script run.ksh runs locally but does not capture any errors in "servername.out" file (I tried testing various... (10 Replies)
for
ga016dgf -> /usr/bin/last | cut -c1-3
Invalid record size. Unable to continue ...
any ideas?
running on
ga016dgf -> uname -a
HP-UX ga016dgf B.11.31 U ia64 1246079591 unlimited-user license
thank you.
Video tutorial on how to use code tags in The UNIX and Linux Forums. (4 Replies)
Hi folks,
I am trying to send an email in Perl script with the below code.
I have written the code in Padre IDE and installed all the required modules(Mail::Sendmail) and executed the code.
It is neither showing errors nor giving the output. I havnt received an mail after running the below... (1 Reply)
This script produces no errors. It also does not produce an output file. Any ideas?
#!/usr/bin/python
import tarfile
output_filename = 'etc.tar'
source_dir = '/etc/'
#To build a .tar.gz for an entire directory tree:
def make_tarfile(output_filename, source_dir):
with... (2 Replies)
Discussion started by: bash_in_my_head
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)