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# 1  
Old 11-05-2005
grep sed
OK, I am trying to become more familiar with grep and sed.

I have a file that is storing some records. I am allowing a user to
search for a keyword in the file with this:
Code:
grep -i "$keyword" testFile|sed -n -e  's/^/\
                        /' -e 's/:/\
                        /gp'

I am trying to narrow the search down to one particular record with this:
Code:
cat<<here
Please enter the record number of the particular
record to display.
here

read number

record=`sed -n ${number}p testFile`

echo $record

grep -i "$record" testFile|sed -n -e 's/^/\
                        /' -e ;s/:/\
                        /gp'

If I enter the number 2, then all I can get to show up is a comment
that I have on line 2 of this file.

Any suggestions?

Thanks,
Eric
# 2  
Old 11-06-2005
That is exactly what it should do. What line do the records begin on?
# 3  
Old 11-06-2005
The records start on line 25. What I would like to do is to be able to number the records to help narrow down the initial search. For example, if 2 records show up with the same first name, I would like to be able to then allow the user to choose which one by a number. I would like to only display the one the user asks for.

Thanks,
Eric
# 4  
Old 11-06-2005
Depending on your shell could use the output of the grep and sed in a select statement.
# 5  
Old 11-07-2005
I figured it out without a select statement.

Thanks,
Eric
# 6  
Old 11-07-2005
I have made some modifications using some basic commands. I want to allow the user to change a record.

Code:
cat<<here

Please enter the record number of the particular record to change:

here

read number

record=`sed -n ${number}p phonebook`

name=`echo $record|cut -d: -f1`
echo $name

echo Do you want to change the name: "$name"
read answer
if[ "$answer" = "y" ]
then
echo "Please enter new name"
read newname
name=$newname
fi

I am now trying to use the sed command to remove the record (the number the user entered).

I also plan to add the new fields back into the file.

Code:
sed -d '${number}'

This is not right. Any suggestions?

Thanks,
Eric
# 7  
Old 11-07-2005
Quote:
Originally Posted by ericelysia
Code:
sed -d '${number}'

Code:
sed -e '4d' filename > filename.modified
mv filename.modified filename

should delete line number 4 for you. And then save it into filename.modified.

vino
 
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