bash - syntax of for loop in linux shell scripting -

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i have problem implementing loop. error when execute script

test1.sh: 2: syntax error: bad loop variable

i don't understand error.

this script

#!/bin/bash (( c=1; c<=5; c++ )) echo "welcome $c times..." done

can 1 tell me syntax for loop in sh(in ubuntu links dash shell) shell in ubuntu?

you run sh, not bash. try bash test1.sh, or ./test1.sh if it's executable, not sh test1.sh.


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