Add Run A cURL Command Without The Progress Meter as a Unix TIL

unix/run-a-curl-command-without-the-progress-meter.md

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+# Run A cURL Command Without The Progress Meter
+
+By default when you run a `curl` command that will output to the terminal, it
+disables the progress meter for the request. When the response output is
+redirected or piped somewhere else however, the progress meter will be
+displayed in the terminal.
+
+```bash
+$ curl -H "Content-Type: application/json" -G http://myurl.com | jq
+  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
+                                 Dload  Upload   Total   Spent    Left  Speed
+100  2515    0  2515    0     0   4184      0 --:--:-- --:--:-- --:--:--  4184
+```
+
+This can be disabled with the `-s` flag (which is short for `--silent`).
+
+```bash
+$ curl -s -H "Content-Type: application/json" -G http://myurl.com | jq
+```
+
+However, the `-s` flag will also suppress error messages. This is a bit
+unhelpful. You can then add in the `-S` flag (short for `--show-error`) to
+ensure that error messages are shown even while the progress meter is
+suppressed.
+
+```bash
+$ curl -sS -H "Content-Type: application/json" -G http://myurl.com | jq
+```
+
+See `man curl` for more details.