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how to use sleep comand for milliseconds?

i have done a coding in shell scripting which reads a file line by line and does something....it takes more than 30 seconds to execute for a single file. when i do the same with perl scripting it...

that doesn't work vino.
now tell me...
i want to check if a word is present in a line,if present //do something...
like the macro can be #if or "ifdef" or "if DEFINED(FLAG)
if the line contains...

Hi vino,

if u get time can u try this out? Execute it with ./scriptname <filename> <FLAG to be removed> as cmd line arguments

FLAG=0
FOUND=0
C="#ifdef"
T="${C} $2
exec 0<$1
set -f
while...

Hi vino,
thatz gr8.this too works perfectly.
Actually my problem is something different.i thought i can get clue from this answer. but..
i wanted to remove the code present in the macros of a C...

Suppose i have a file which contains 10 lines....
i have to delete a line which starts with the word "BEGIN"
and delete the consecutive lines till i find a start of line with the word "END"
how...

Hi vino,
that was perfectly working....thank you very much.
sridhar,that code results in the same error....but thanks for responding.

Both of you have worked it out in ksh...
but it works in...

hi,
while reading a file line by line

# name of the script is scriptrd

while read line
do
echo $line
done


while executing
bash$ ./scriptrd
if i give the input as
*

the output...