Help with code Post: 302753637

Sponsored Content

Top Forums Shell Programming and Scripting Help with code Post 302753637 by Don Cragun on Wednesday 9th of January 2013 05:54:00 AM

01-09-2013

Registered User

Here are a couple of ways to do what you want:

Code:

#!/bin/ksh
echo simplififed translation from given code
while read i
do      grep $i /tmp/b | awk '{printf("echo mail -s \"%s is your new ID\" %s@companydomain.com", $2, $1)}' | ksh
done < /tmp/a

echo awk replacement
awk 'FNR == NR {
        newID[$1] = $2
        next
}
{       printf("echo mail -s \"%s is your new ID\" %s@companydomain.com\n",
                newID[$1], $1);
}' /tmp/b /tmp/a | ksh

I use ksh and I added echo commands in several places so it will show what it will do rather than actually invoke mail to send messages. You'll need to change /bin/ksh in the first line of the script to the absolute pathname of a shell on your system that processes traditional Bourne shell command syntax (e.g., bash, ksh, or sh) to run the script and then remove echo from the awk printf() command after you verify that the script does what you want.

Choose whichever code segment you prefer to use. They both should do what you want. The first segment is a simplified and corrected version of what it looked like you were trying to do. The second one produces the same results, but should be more efficient.

These 2 Users Gave Thanks to Don Cragun For This Post:

Don Cragun

View Public Profile for Don Cragun

Find all posts by Don Cragun

6 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Return code from PL/SQL Code

Hi Guys, I was just wondering if anybody can help me with this problem. OK, how we can get a value back from PL/SQL Script (not stored procedure/function) See the below example: (for example aaa.sh) #!/bin/ksh VALUE=`sqlplus -s user/password@test_id <<EOF @xxx.sq EOF` echo $VALUE ...

2. Programming

how i prepare a c++ code(c code) for implementing my own protocol format

helo my protocol format is given below { destno,mode,no.of packet,pktsize,,pktno,textsize,CRC} description:- { is starting flag destno - 4bytes mode - 1 byte no.of pkt - 4byes pktsize - 6 bytes ...

3. Shell Programming and Scripting

translate ksh code to csh code

hi all, Can any 1 help me translate this korn shell code to C shell code : email=$(grep "^$1" $folder/config_2.txt | awk '{print $2'}) In config_2.txt the content is : which mean in korn shell , $1=groupname and $2=email address. Now i need to write in C shell script,when i set the...

4. UNIX for Dummies Questions & Answers

If �922� Code does not exist on �03� Record, �901� Code will be there instead, move �03� R

01,011600033,011600033,110516,0834,2,90,,2/ 02,011600033,011103093,1,110317,0834,,2/ 03,105581,,015,+00000416418,,,901,+00000000148,,,922,+000000 00354,,/ 03,113806,,015,+00000559618,,,901,+00000000096,,,922,+000000 00621,,/ 88,902,+0000000025218,,/...

5. Shell Programming and Scripting

Block of code replacement in Java source code through Unix script

Hi, I want to remove the following code from Source files (or replace the code with empty.) from all the source files in given directory. finally { if (null != hibernateSession && hibernateSession.isOpen()) { //hibernateSession.close(); } } It would be great if the script has...

6. Linux

Go to a line of code , skip few lines of code

Hi , I have a code where i am using a infinite while loop . some thing like below while do if then #go to line 20 fi command 1; command 2; #line 20: sleep 34;

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)