Suppose I have a directory under which there are 3 files named: file1.txt,file2.txt and file3.txt.Now how can I fill an array with those file names(I just know that all the files have certain prefix, i.e. file, after file it can be 1,2,3 etc.
How to put the specific files from a directory in an array in bash?
bash;filenames;wildcards
From Greg's Wiki: the Bash Guide entry on arrays:files=()while read -r -d $'\0'; do    files+=($REPLY)done < <(find *.txt -print0)There is a detailed explanation of arrays on the page that breaks this construct down element by element; it is well worth reading in full.