Shell Programming and Scripting

Hi,

does somebody know how can I step on the lines in a file?

I would like to read a file line by line. And after every line I'd like to do other commands.

Lets help me!

while read line
do
your commands here
.
.
done< yourfile

amitranjansahu, thx

But could you tell me this with an example?

myfile1.dat:
ABC = 123
DEF = 000
GHI = 987

myfile2.dat:
xxxABCxxxxGHIxxx
xDEFxxxxABCxxxxx
xxxxxxxGHIxDEFxx

Well, I want to step on the lines of file2.

command 1st: search ABC / DEF / GHI
command 2nd: change this to the numbers
command 3rd: take 'yyy' string at the end of all line

How do you make it?

here's something to start with - the rest is left as an exercise.
nawk -f mig.awk file1.dat file2.dat

mig.awk

Code:

BEGIN {
  FS=" = "
}
FNR ==NR { f1[$1]=$2; next}
{
  for( i in f1)
    gsub(i, f1[i])
  print
}

vgersh99,

thx