Shell Programming and Scripting

 
if [[ -f $XFER/${FILE}20120621??????_sas.sig ]]
then 
print "its there" 
else
print "its not there"
fi

 
if [[ -f $XFER/${FILE}20120621012402_sas.sig ]]
then 
print "its there" 
else
print "its not there"
fi

echo "$XFER/${FILE}"20120621??????_sas.sig

 
 
if [[ -f `echo "$XFER/${FILE}"20120621??????_sas.sig` ]]
 then
 print "its there"
 else
 print "its not there"
 fi

touch abc123456 
$ if [ -f abc?????? ]; then  echo hello; fi
hello
$ touch abc123456 abc123421 abc765432
$ if [ -f abc?????? ]; then  echo hello; fi
-bash: [: too many arguments

$ if [ -f abc?????? ]; then  echo hello; fi
+ '[' -f abc123421 abc123456 abc765432 ']'
-bash: [: too many arguments
$

$ touch 'abc??????'
$ if [[ -f abc?????? ]]; then  echo hello; fi
hello
$

file_exists()
{
  for _file; do
    [ -f "$_file" ] && return
  done
  return 1
}

$ if file_exists abc??????; then echo hello; fi
hello
$