Question

This piece of code is working absolutely fine when I am executing it individually

for i in {1..13}
do
echo "<td class = 'loop'>

</td>"
done

But when I am putting this inside a bash script I am getting only one iteration,instead of 13 iteration.

The whole script looks something like

while read variable
do
//something
done<a.txt

for i in {1..13}
do
echo "<td class = 'loop'>

</td>"
done

Can any one help me out.

EDIT

     #/!/bin/bash
while read  host 
do  



    y=$(($y+1)) 

    count=$(ping -c $COUNT $host | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }')
    if [ $count -eq 0 ]; then
                if [ -n "$host" ]; then
                    echo "<td class ='statuscellred'>" >>table1.html
                    echo  "$host" | cut -d'.' -f1 >> table1.html
                    echo "</td>" >> table1.html
                    if [ $(($y % 13)) -eq 0 ] ; then
                        echo "</tr>">>table1.html
                        echo "<tr>">>table1.html
                    fi  
                else
                    echo "<td class ='statuscellblanck'>" >>table1.html
                    echo "$host" >> table1.html
                    echo "</td>" >> table1.html
                    if [ $(($y % 13)) -eq 0 ] ; then
                        echo "</tr>">>table1.html
                        echo "<tr>">>table1.html
                    fi
                fi

    else
        if [ -n "$host" ]; then
                    echo "<td class ='statuscellgreen'>" >>table1.html
                    echo  "$host" | cut -d'.' -f1 >> table1.html
                    echo "</td>" >> table1.html
                    if [ $(($y % 13)) -eq 0 ] ; then
                        echo "</tr>">>table1.html
                        echo "<tr>">>table1.html
                    fi  
                else
                    echo "<td class ='statuscellblanck'>" >>table1.html
                    echo "$host" >> table1.html
                    echo "</td>" >> table1.html
                    if [ $(($y % 13)) -eq 0 ] ; then
                        echo "</tr>">>table1.html
                        echo "<tr>">>table1.html
                    fi
                fi
    fi




done < server1.txt

for i in {1..13}
do
echo "<td class = 'loop'>

</td>">>table1.html
done

and here is server1.txt

     1.com
2.com
3.com
4.com
5.com

7.com
8.com


9.com

11.com

13.com

15.com

Answer 1

Based on the posted code, the shebang line is not formed correctly. It should be:

#!/bin/bash

with no leading spaces (posted version has an extra / in it). As it stands, if you execute that in a shell it’ll be interpreted by the current shell, and the first line is merely a comment.

[taken from my comment as it appears to have resolved the OP’s problem]