Trying to process 1000 or so files. Take original date and append to end of file. Like so:
Been working along these lines:
keep getting same date stamp on all files. Sep-11--2012.
Can figure out the loop
thanks
Last edited by Franklin52; 02-19-2016 at 12:53 PM..
Reason: Please use code tags
I need the line printed with echo to append to eof of to exactly line, am i able to do that?
i mean
echo "sysctl -w lalala=1" > to end of file /etc/sysctl.conf
or to the 21st line, if the line exist, open new line and insert text there.
Thx.maybe i'm in wrong topic but anyway... (2 Replies)
Hi All,
I have two comma separated value(CSV) files, say FileA and FileB.
The contents looks like that shown below.
FileA
EmpNo,Name,Age,Sex,
1000,ABC,23,M,
1001,DES,24,F, ... (2 Replies)
Hi,
I have a .txt file and it contains some file names.I want to append .gz extension to all the file names that are present within the .txt file.
Input.
aa.bb.Mar-20-2007
aa.cc.Mar-20-2007
Output
aa.bb.Mar-20-2007.gz
aa.cc.Mar-20-2007.gz
Please help me with this command.
... (10 Replies)
Hello I am trying to append an incrimenting number to the end of each line I have it working with a temp file. But I want to do this without a temp file.
a=1
cat "file" | while read LINE
do
echo "$LINE, $a" >> filewithnumbers
a=`expr $a + 1`
... (4 Replies)
Hi All,
Is there any way to append a newline character at the end of a file(coma-separated file), through shell script?
I need to check whether newline character exists at the end of a file, if it does not then append it.
Regards,
Krishna (1 Reply)
Hi all,
i have to append a record at the end of the file(a file which is already with some records).how do i do?please help me?
is there any way of doing this with "SED" command.i am not sure.plz help me on this.
would appreciate your ideas!!!!
bye
rao. (3 Replies)
I have a file "sample.txt" with the content as below:
Hi
This is a Sample Text.
I need a single command using cat which serve the following purpose.
1.display the contents of sample.txt
2.append some text to it
3. and then exit
But, all should be served by a sinle command.:confused: (1 Reply)
I have a file which has data in the below format:
7810902|6783014102| || |0| |0| |0| |0|||||T|04/13/2006||9423|7421||100|2006-04-13 16:50:28|||2006-04-13 16:50:28|n|51|-1||214
1089929|||||NewSpCreateAction request successful. Activity ID = <826528>||||100|n|2006-04-13 16:50:27|2006-04-13... (3 Replies)
I was thinking something like
for i in `find . -name "*.log.Z"`; do mv $i name.log.Z
or something like that? (3 Replies)
Discussion started by: xgringo
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)