01-31-2012
@partmittal2007
Check whether your version of "sed" has the "-i" switch.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
how can i modify a file using sed when searching
for a pattern and insert newline after the pattern?
pattern example: $ ...(any characters)...$
$ may082001.../tmp/msg.001,,$ REPT CLEAR ALARMS ON UNIT 1
$ may082001.../tmp/msg.002,,$ UNIT 1 IN SERVICE
into:
$... (1 Reply)
Discussion started by: apalex
1 Replies
2. Shell Programming and Scripting
Hello all
i have big test file that has allot of structure text something like this :
<foo1 *.html>
<blah action>
somthing 1
somthing 2
</blah>
</foo1 >
now i will like to insert 2 more lines of text below the <blah action>
so it will be like :
<foo1... (1 Reply)
Discussion started by: umen
1 Replies
3. Shell Programming and Scripting
Hi Every One...
I wanted to inserted a line in between matched pattrens..
Ex...
InPut File..
WRITEQ
TS
**************************
aaaaaaaaaaaaaaaaaaaaaaaa
bbbbbbbbbbbbbbbbbbbbbbbb
cccccccccccccccccccccccc
SOME PATTREN's
RESP ( WS-RESP )
... (7 Replies)
Discussion started by: pbsrinivas
7 Replies
4. Shell Programming and Scripting
Hi, guys. I have one question:
How can I search for a line with certain string in it and then insert a string into this line?
For example:
There is a file called shadow, the contents of it are below:
**************************
...
yuanz:VIRADxMsadfDF/Q:0:0:50:7:::... (9 Replies)
Discussion started by: daikeyang
9 Replies
5. Shell Programming and Scripting
Hi,, Please excuse my lack of knowledge here. I think I am tring to do something fairly advanced yet am a bit of a beginner.....
I want to use a korn shell (as is the norm with others in my company) to write a script to search a file for a string and insert some text above that line.
Sudo... (5 Replies)
Discussion started by: HugoDarley
5 Replies
6. Shell Programming and Scripting
Hello,
I've been racking my brain trying to find a good way to accomplish a task. I need to insert a block of text into a file in the format of
FirewallRuleSet proxy-users {
FirewallRule allow to 0.0.0.0/0
}
I need to insert this block of text (which could have sed special... (2 Replies)
Discussion started by: 0xception
2 Replies
7. Shell Programming and Scripting
Hi,
I want to do a sed (linux) or the alternative in PHP to insert a backslash in front of every occurrence of every forward slash
ex.
/archive/data/stanley
-->
\/archive\/data\/stanley
I appreciate it! (4 Replies)
Discussion started by: deadyetagain
4 Replies
8. UNIX for Dummies Questions & Answers
HI All
Im trying to come up with an approach to finding a string, using a portion of that string to insert it on lines starting with the value "GOTO" appending to end of line after removing PT's ( See example below! )
EXAMPLE:
1. I would like to search for the line that starts with "TLAXIS/"... (7 Replies)
Discussion started by: graymj
7 Replies
9. Shell Programming and Scripting
I have a following file:
# User defined in group
admin = boss, sysadmin
phpteam = php1, php2, php3
rubyteam = ruby1, ruby2
# SVN root should only be access by boss and system admin
@admin = rw
* =
# Main web repository should only be access by boss and system admin, others... (3 Replies)
Discussion started by: ankur328
3 Replies
10. Shell Programming and Scripting
Have a file which has the create statement like below
create table emp
( empno integer,
empname char(50))
primary index(empno);
i need to find a string starting with create and ends with semi-colon ;. if so insert the below statement before create statement
rename table emp to emp_rename;... (2 Replies)
Discussion started by: Mohan0509
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)