title: What is the difference between the permissions tags -rwxr-xr-x and -rwxrwxrwx?
body: <p>Before trying to assemble sequence data, I get a file size estimate for my raw READ1/READ2 files by running the command <em>ls -l -h</em> from the directory the files are in. The output looks something like this:</p>
  <p>-rwxrwxrwx@ 1 catharus2021  staff    86M Jun 11 15:03 pluvialis-dominica_JJW362-READ1.fastq.gz</p>
  <p>-rwxrwxrwx@ 1 catharus2021  staff    84M Jun 11 15:03 pluvialis-dominica_JJW362-READ2.fastq.gz</p>
  <hr />
  <p>For a previous run using the identical command, but a different batch of data, the output was as such:</p>
  <p>-rwxr-xr-x  1 catharus2021  staff    44M Mar 16  2018 lagopus_lagopus_alascensis_JJW1970_READ1.fastq.gz</p>
  <p>-rwxr-xr-x  1 catharus2021  staff    52M Mar 16  2018 lagopus_lagopus_alascensis_JJW1970_READ2.fastq.gz</p>
  <hr />
  <p>It doesn't seem to be affecting any downstream commands, but does anyone know why the strings at the very beginning (-rwxrwxrx@ vs. -rwxr-xr-x) are different? I assume that they're permissions flags, but google has been less-than-informative when I try to type those in and search.</p>
  <p>Thanks in advance for your time.</p>