Help need in Shell Scripting

Shell Programming and Scripting
1

Hi All :slight_smile:

i am writing a shell which would read from a parameter file , and once the file is read it should not display those lines in the output file

Example

Prameter file is b.txt and it contains the following :
aaaa
cccc
ffffff
rrrrrr
qqqq

and i issue the command df -d it will display all the datas and store it in a log file , but those lines which are mentioned should not be there in the log file
can anyone help me on this

2

something like this,

awk 'BEGIN{ while ( getline < "parameter.file" ) { arr[$0]++ } }{ if ( !( $0 in arr ) ) { print } }' data.file
3

one quick question : data.file which is mentioned is the output log file which is generated ?

Thanks

:slight_smile:

4

exactly

and the paramter.file is the "b.txt"

5

Hi , Thanks fo you help

I am rewritting the requirement once again

i am executing a command autorep -j % and redirecting the ouput to one file

autorep -j % -q > data1.txt

data1.txt has all the information which is avaiable in the database

and have a parameter file which has these lines (b.txt)
qqqqq
aaaa
asss
assddd
454545

Once i run the shell script with the command included

autorep -j % -q > data1.txt , it should read from the parameter file and should produce another output data2.txt , and those ouput should not have the lines which are in b.txt

Can anyone help me on this !!

Thanks once again

6

The script code may help us... Could you post it?

7

Hi , not started the code

autorep -j e% -q will display all the jobs in the database

i am redirecting it to an output file

autorep -j e% -q > data1.txt

i have another parameter file b.txt
qqqq
aaaa
3333
454545

once i execute the shell it has to collect all the information using autorep command , and then read from the parameter file b.txt and my final output should have all info other than the names which are mentioned in b.txt

can i get any sample code how to proceed on this
Thankyou!!

8

I'm afraid I misunderstood yout first post, I'm sorry :slight_smile:
OK, what about this? (not tested):

autorep -j e% -q > data1.txt
PATTERNTMP=
while read l; do
   PATTERNTMP="${PATTERNTMP}|$l"
done < b.txt
PATTERN=$(echo $PATTERN | sed 's/^|//')
grep -v -E "${PATTERN}" data1.txt

Regards.

9

Hi
grep: RE error 41: No remembered search string. is the error ,

Thanks

10

then how do yuu make the password invisible in a particular file?

11

operating system? shell and version?

12

Is there a problem if you do this:

I think most unix systems have fgrep so should be ok.

HTH.