Script to print line

sandeep_hello · 01-16-2014, 12:07 PM

Hi,

i have one file for data

# cat file1
a b c
d e f
g h i

i want to print this line by line. I am writing script like this.

#!/bin/bash

TXT=/root/user

for i in `cat $TXT`
do
echo $i
done

but it is printing line this

a
b
c
d
e
f
g
h
i

output should come like this

a b c

d e f

g h i

Please suggest me the best way.

Regards
Sandeep Sharma

MensaWater · 01-16-2014, 12:15 PM

cat file1 |while read line ; do echo $line; done

sandeep_hello · 01-16-2014, 10:43 PM

Thank for your reply.

actually i want to use for loop for further processing. I will parse each line and store in a variable but this is not happening in my script.

Like

Line by line

First=a
second=b
third=c

First=d
second=e
third=f

First=g
second=h
third=i

Please suggest on this.

Regards
Sandeep Sharma

mutput7 · 01-16-2014, 11:16 PM

I'm not sure what you mean, but you might want to try defining a function so you can more easily parse the lines later:

Code:

function parseline {
  line=$@
  echo $line
}
while read line ; do parseline $line; done < file1

evo2 · 01-16-2014, 11:39 PM

Hi,

avoiding useless use of cat:

Code:

while read l ; do
  echo "The line is $l"
done < file1

HTH,

Evo2.

SAbhi · 01-17-2014, 12:20 AM

@sandeep :
you already had 2 nice solutions, if you still want it in for*, take a a look on how while is used and try on your own first, we will help if you stuck.