08-29-2008
read a file line by line in ksh
Hi,
In ksh we use 'while read line' statement to read a file line by line. In my input file I have 5 spaces appended at the end of each line. When I use while read line statement it chops off the spaces at the end of each line
Inp.txt
aaaa<five spaces>
bbbb<five spaces>
cccc<five spaces>
pgm.ksh
#!/bin/ksh
while read line
do
len=`echo "$line" | wc -c`
echo $len
done
my_output
5
5
5
But my expected output should be,
10
10
10
Kindly help me on this.
Thanks in advance,
Chella.
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line(1) User Commands line(1)
NAME
line - read one line
SYNOPSIS
line
DESCRIPTION
The line utility copies one line (up to and including a new-line) from the standard input and writes it on the standard output. It returns
an exit status of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal.
EXIT STATUS
Exit status is:
0 Successful completion
>0 End-of-file on input.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
sh(1), read(2), attributes(5)
SunOS 5.10 1 Feb 1995 line(1)