[SOLVED] How to take multiple files in terminal in BASH shell scripting

Issue

...... This problem is solved.

Solution

At present $I is referencing the iterations of the loop and so 1,2,3 .... These files cannot be found by grep and hence the error.

There are two approaches to ocercome this. $@ contains the parameters passed to the script and so you could try:

grep "enthalpy new" "$@" >> step.txt

Alternatively, if you want to loop through each parameter/file try:

for fil in "$@"
do
      grep  "enthalpy new" "$fil" >> step.txt
done

Answered By - Raman Sailopal

Answer Checked By - David Marino (WPSolving Volunteer)