Line by line file reading... and more!

ProFiction · #1 (**permalink**) 07-20-2007

Hello,

I've got a lot of this file replication script written, but I'm having trouble finishing it off. What I need to do at the moment is run through a file one line at a time, execute the line, then check the time.

The process cannot run past 7am.

I've got a while loop set up to handle the time, I just need the innards of the loop to go through the file one line at a time.

The file looks like this:
cp /path/to/file /path/to/new/file
...... etc over and over again.

Also, if it reaches 7am and the file is not completed, its remaining contents must be saved for the next night.

Any help at all would be greatly appreciated.

Code:

hour="`date '+%H'`"
while [ $hour -ne "07" ]
do
    // read/execute next line of the file
    hour="`date '+%H'`"
done
//once it is 7am, save the remainder of the file until the next night.

The reading/executing just a single line of the file and also saving the rest of it is what I'm having troubles with

tangjava · #2 (**permalink**) 07-26-2007

if you do the following it should work:-

cat "$OUTFILE" | while read LINE; do
.
.
done

where $OUTFILE is the name of your file

aigles · #3 (**permalink**) 07-26-2007

You can do something like that :

Code:

> not_proceeded_lines
hour="`date '+%H'`"
while read input_line
   if [ $hour -ne "07" ]
   then
      echo "Proceed line ..."
      hour="`date '+%H'`"
   else
      echo "$input_line" >> not_proceeded_lines
   fi
done < input_file

Jean-Pierre.

ahmedwaseem2000 · #4 (**permalink**) 07-26-2007

alternatively you can use this:

Quote:

hour="`date '+%H'`"
for input_line in `cat input_file`
do
if [ $hour -ne "07" ]
then
echo "Proceed line ..."
hour="`date '+%H'`"
else
echo "$input_line" >> not_proceeded_lines
fi
done

Shell_Life · #5 (**permalink**) 07-26-2007

Quote:

Originally Posted by ProFiction

Hello,
I've got a lot of this file replication script written, but I'm having trouble finishing it off. What I need to do at the moment is run through a file one line at a time, execute the line, then check the time.
The process cannot run past 7am.
...

This is a duplicate post.

I already replied with a solution to the previous post:
http://www.unix.com/shell-programmin...#post302128241

LAKSHMI NARAYAN · #6 (**permalink**) 07-26-2007

the output is giving like this

PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
PROCEED THE LINE
---------------------------------------------------------------------
the script which i tried and u have given is

hour="`date '+%H'`"
for filename in `cat input_line`
do
if [ $hour -ne "07" ]
then
echo "PROCEED THE LINE"
hour="`date '+%H'`"
else
echo "$input_line" >> not_proceeded_line
fi
done

---------------------------------------------------------------------

can u explain this , what was it doing

ahmedwaseem2000 · #7 (**permalink**) 07-26-2007

Could you please post the contents of the input_line file and not_proceeded_line file

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