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1. Shell Programming and Scripting
Hi Everyone,
I am trying to make this script to use, to find out the DAHDI channel status. Every thing works fine, I even get proper results, however I have this weird error that comes along.
Can someone please help me. Thanks a lot.
#!/bin/bash
# Color to set the test to when a channel is... (3 Replies)
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2. Shell Programming and Scripting
Hi All,
When I am trying to send a text file through Unix,I get a weird symbol in the .txt file. The symbol is ? in a box (square)....which is making the file unloadable. Please help me with the solution.
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Gopi (1 Reply)
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3. UNIX for Dummies Questions & Answers
Hi,
We are running into very weird error on AIX. Target directory exists on NFS.
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Followig is the snapshot of the script :
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if ;... (7 Replies)
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4. Shell Programming and Scripting
I just finish the shell script .
This shell can replace weird characters (such as #$%^@!'"...) in file or directory name by "_"
I spent long time on replacing apostrophe in file/directory name
added: 2012-03-14
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5. Shell Programming and Scripting
I have an issue with a korn shell script that I am writing. The script parses through a configuration file which lists a heap of path/directories for some files which need to be FTP'd. Now the script needs to check whether there are any files which have not been processed and are X minutes old.
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6. UNIX for Advanced & Expert Users
I have JIL script like the one below
insert_job:F_SAMPLE
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owner:asla@PC001
watch_file:/home/shah/one/sample.trg
watch_interval:90
alarm_if_fail:1Here my question is, there is a directory one under that file needs to be watched sample.trg..!
but directory one owned... (0 Replies)
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7. AIX
When I do a file list in my spooler directory, I get the following
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8. Shell Programming and Scripting
Hi.
I have files in my OS that has weird file names with not-conventional ascii characters.
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I know the ascii # of the problematic characters.
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is there... (2 Replies)
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9. UNIX for Dummies Questions & Answers
Hi,
How do I delete a file name that starts with a hypen?
e.g. -unix_file_2006_10_3
I always get an erroe when I use rm command. I am using Solaris.
Thanks,
Hi,
One of the Unix books I read to remove this weird file suggest to use:
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10. UNIX for Dummies Questions & Answers
$ls -lrt
-rw-r--r-- 1 rathodr users 1757 Jan 6 13:36 cleanup.archive.files.pl
-rwxr-xr-x 1 rathodr users 20503 Jan 6 13:52 alarm.control.pl
-rw-r--r-- 1 rathodr users 20503 Jan 9 04:52q
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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)