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Use $() for command substitution instead of backticks/quotes.

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One of the example was using quotes instead of backticks.
Backticks are the "older" way of doing things, which has a number of
disadvantes:

    http://mywiki.wooledge.org/BashFAQ/082

Here I'm more worried about readability as depending on font and "smart"
editor helping on the web, many people may confuse ` with ', it could
end up modifying formatting on makrdown powered website... etc...
This commit is contained in:
Matthias Bussonnier
2018-10-04 13:44:16 -07:00
parent cff066a7be
commit 2e872069fb
5 changed files with 6 additions and 6 deletions
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4
docs/source/getting-started/security-basics.rst
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@@ -124,7 +124,7 @@ hex-encoded string. You can set it this way:
.. code-block:: bash .. code-block:: bash
export JPY_COOKIE_SECRET=`openssl rand -hex 32` export JPY_COOKIE_SECRET=$(openssl rand -hex 32)
For security reasons, this environment variable should only be visible to the For security reasons, this environment variable should only be visible to the
Hub. If you set it dynamically as above, all users will be logged out each time Hub. If you set it dynamically as above, all users will be logged out each time
@@ -173,7 +173,7 @@ using the ``CONFIGPROXY_AUTH_TOKEN`` environment variable:
.. code-block:: bash .. code-block:: bash
export CONFIGPROXY_AUTH_TOKEN='openssl rand -hex 32' export CONFIGPROXY_AUTH_TOKEN=$(openssl rand -hex 32)
This environment variable needs to be visible to the Hub and Proxy. This environment variable needs to be visible to the Hub and Proxy.

2
examples/cull-idle/README.md
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@@ -36,6 +36,6 @@ Generate an API token and store it in the `JUPYTERHUB_API_TOKEN` environment
variable. Run `cull_idle_servers.py` manually. variable. Run `cull_idle_servers.py` manually.
```bash ```bash
export JUPYTERHUB_API_TOKEN=`jupyterhub token` export JUPYTERHUB_API_TOKEN=$(jupyterhub token)
python3 cull_idle_servers.py [--timeout=900] [--url=http://127.0.0.1:8081/hub/api] python3 cull_idle_servers.py [--timeout=900] [--url=http://127.0.0.1:8081/hub/api]
``` ```

2
examples/cull-idle/cull_idle_servers.py
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@@ -22,7 +22,7 @@ You can run this as a service managed by JupyterHub with this in your config::
Or run it manually by generating an API token and storing it in `JUPYTERHUB_API_TOKEN`: Or run it manually by generating an API token and storing it in `JUPYTERHUB_API_TOKEN`:
export JUPYTERHUB_API_TOKEN=`jupyterhub token` export JUPYTERHUB_API_TOKEN=$(jupyterhub token)
python3 cull_idle_servers.py [--timeout=900] [--url=http://127.0.0.1:8081/hub/api] python3 cull_idle_servers.py [--timeout=900] [--url=http://127.0.0.1:8081/hub/api]
This script uses the same ``--timeout`` and ``--max-age`` values for This script uses the same ``--timeout`` and ``--max-age`` values for

2
examples/external-oauth/README.md
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@@ -18,7 +18,7 @@ implementations in other web servers or languages.
1. generate an API token: 1. generate an API token:
export JUPYTERHUB_API_TOKEN=`openssl rand -hex 32` export JUPYTERHUB_API_TOKEN=$(openssl rand -hex 32)
2. launch a version of the the whoami service. 2. launch a version of the the whoami service.
For `whoami-oauth`: For `whoami-oauth`:

2
examples/service-whoami-flask/launch.sh
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@@ -1,4 +1,4 @@
export CONFIGPROXY_AUTH_TOKEN=`openssl rand -hex 32` export CONFIGPROXY_AUTH_TOKEN=$(openssl rand -hex 32)
# start JupyterHub # start JupyterHub
jupyterhub --ip=127.0.0.1 jupyterhub --ip=127.0.0.1