space between two lines

UNIX Solaris
1

hi team

i have file test which contain

 
 
hi how are u
hi how u doing
hellooo
gud morning

excepted output is

 
hi how are 
hi how u doing
 
hellooo
gudmorning

i want space between 2nd and 3rd row of the file

2

Try it in below format...

hi how are
hi how u doing
echo " \n "
hellooo
gudmorning

3

its just a sample if there are 1000 lines and i need space between ever lines .
is there any command to do this . . .like SED,AWK

---------- Post updated at 11:30 PM ---------- Previous update was at 02:13 AM ----------

hi team

let me explain clearly what i want

i have a file test contain some 9 lines

 
hi how u doing
hi helloo how r u
today is sunday
k we will go out
what u r doing here
shall we go to home
k we will meet later
i will call u tonite
take of ur pets

i want a line space between every three lines

my excepted output will be

 
hi how u doing
hi helloo how r u
today is sunday
 
k we will go out
what u r doing here
shall we go to home
 
k we will meet later
i will call u tonite
take of ur pets
4 
#!/bin/bash

i=0
while read -r LINE
do
  if [ "$i" -eq 3 ];then
    echo ""
    i=0
  else
    echo "$LINE"
    ((i++))
  fi
done < "myfile"
5

thnks kurumi , but its shows some error

 
#!/bin/bash
i=0
while read -r LINE
do
  if [ "$i" -eq 3 ];then
    echo ""
    i=0
  else
    echo "$LINE"
    ((i++))
  fi
done < "test"

Error

-bash-3.00$ sh line.sh
line.sh: -r: is not an identifier
6

use bash

-bash-3.00$ bash line.sh
7

thnks kurumi its working , but some mischange . it delete the line after 3rd line and make it as a line space . .

input

-bash-3.00$ cat  test
hi how u doing
hi helloo how r u
today is sunday
k we will go out
what u r doing here
shall we go to home
k we will meet later
i will call u tonite
shall we go out

 
bash-3.00$ cat line.sh
#!/bin/bash
i=0
while read -r  LINE
do
  if [ "$i" -eq 3 ];then
    echo ""
    i=0
  else
    echo "$LINE"
    ((i++))
  fi
done < "test"

output

 
-bash-3.00$ bash line.sh
hi how u doing
hi helloo how r u
today is sunday
 
what u r doing here
shall we go to home
k we will meet later
 
shall we go out

my excepted output is

hi how u doing
hi helloo how r u
today is sunday

k we will go out
what u r doing here
shall we go to home

k we will meet later
i will call u tonite
shall we go out
8 
#!/bin/bash

i=0
while read -r LINE
do
  ((i++))
  echo "$LINE"
  if [ "$i" -eq 3 ];then
    echo ""
    i=0
  fi
done < "file"
1 Like
9

same output is coming . it delete the line after 3rd line and make it as a line space

10 
#> cat  file
hi how u doing
hi helloo how r u
today is sunday
k we will go out
what u r doing here
shall we go to home
k we will meet later
i will call u tonite
take of ur pets
#> ./myscript.sh
hi how u doing
hi helloo how r u
today is sunday

k we will go out
what u r doing here
shall we go to home

k we will meet later
i will call u tonite
take of ur pets
11

thanks a lot kurumi , its working . . .