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thanks its working

after doing all the above steps its not worki9ng can anyone suggest another workable way of incrementing the variable i

when i open a file to edit and type i to insert and the type # for #!/bin/bash
in vi and vim editor the message come that no string under cursor plz somebody help

code is as

#!/bin/sh

i=1;
while [ $i -le 5]
do
welcome $i times;

i='expr $i+1';


done
exit 0;