Shell Programming and Scripting

Hi,

I have a file with the content:

Code:

 
for name in \
sree\
rama\
laila\
srihari\
vicky\
john
do
   echo $name
done

I need to remove all the name lines that exist between for (first line) and do line so that i can replace with new names.

Output file should look like:

Code:

 
for name in \
do
echo $name
done

when i use the below command, it is deleting for line and do lines as well.

Code:

sed -i '/for/,/do/d' file

Please take for line and do line as a reference because we may not sure about the number of lines between for line and do line. Those lines get changed every time.

Thanks in advance!!

-SREE

Code:

awk '/^for/{print;f=1;next;}/^do/{print;f=0;next;}f!=1{print}' filename

Hi Bipin,

Thanks a lot for the quick reply. It works!!

-SREE

Just extend your sed code slightly:

Code:

$ sed '/^for/,/^do/{/^for/p;/^do/p;d}' file
for name in \
do
   echo $name
done

or even shorter:

Code:

$ sed '/for/,/do/{/for\|do/p;d}' file

You need to decide if anchoring the regexs with ^is advantageous or not.