I'm trying to figure out how to build a small shell script that will find old .shtml files in every /tgp/ directory on the server and delete them if they are older than 10 days...
The structure of the paths are like this:
/home/domains/www.domain2.com/tgp/
/home/domains/www.domain3.com/tgp/... (1 Reply)
what will the cmd below do?
ls *.3
1 members mentions that to seek all permutations and combinations of the mp3 extension ill have to use curly braces, {} and not, .
what then will do? (13 Replies)
In my ksh script, if the conditions of a if statement are true, then do nothing; otherwise, execute some commands.
How do I write the "do nothing" statement in the following example?
Example:
if (( "$x"="1" && "$y"="a" && "$z"="happy" ))
then
do nothing
else
command
command
fi... (3 Replies)
Hi All,
I am using Unix ksh script.
I need to insert values to a table using the o/p from a slelect statement.
Can anybody Help!
My script looks like tihs.
---`sqlplus -s username/password@SID << EOF
set heading off
set feedback off
set pages 0
insert into ${TB_NAME}_D... (2 Replies)
Hi, I have this code to search all "cif" files using wildcard
for file in *.cif
do
grep "Uiso" $file | awk '{ print $3, $4, $5 }' > tet
done
I get this error
"grep: *.cif: No such file or directory"
Please where am I going wrong!!!
Thank you in advance (6 Replies)
Can someone please explain the wildcards in this. How is this recursive? When I put this in my terminal it recursively displayed everything.
ls .* * (6 Replies)
I'm trying to create a shell script that will check for new files and or folders and if it exist then copy them to a different directory.
Does anyone have a idea?
if ;
then
echo "Copying files from the Upgrade Server"
cp -Ruavp /home/upgrade/hex-code/*... (7 Replies)
Hi Experts,
I want to use ls in the below form:
ls -l *.{txt,TXT} (working fine)
but when i am declaring a variable,
VAR="*.{txt,TXT}"
ls -l $VAR is not working. Please help.
Thanks. (4 Replies)
CD_numb is AM017
this code:
set the_Firstcom_CD to (do shell script "ls -d '/volumes/audioNAS/Firstcom/Access Music/' ") & CD_numb
gives me this:
"/volumes/audioNAS/Firstcom/Access Music/AM017"
the item I am looking for is AM017Q.
I can get the "*" syntax right so it never finder... (7 Replies)
Hi folks,
I have a scenario to convert the update statements into insert statements using shell script (awk, sed...) or in database using regex.
I have a bunch of update statements with all columns in a file which I need to convert into insert statements.
UPDATE TABLE_A SET COL1=1 WHERE... (0 Replies)
Discussion started by: dev123
0 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)