Question

Hi i want to write a script that will go to a directory with many files and search a filename e.g. test_HTTP_abc.txt for this and search for HTTP string pattern, if it contains this string then set a variable equal to something:

something like:

var1=0

search for 06
if it contains 06 then
var1=1
else
var1=0
end if

but in unix script . Thanks

Answer 1

Probably the simplest thing is:

if test "${filename#*HTTP}" = "$filename"; then
  # the variable does not contain the string `HTTP`
  var=0
else
  var=1
fi

Some shells allow regex matches in [[ comparisons, but it’s not necessary to introduce that sort of non-portable code into your script.