Sleep: Difference between revisions
Jump to navigation
Jump to search
→BASH
(→BASH) |
|||
| Line 175: | Line 175: | ||
</pre> | </pre> | ||
=== BASH example: download file and sleep random seconds between 1 ~ 7 seconds === | |||
<pre> | |||
if [ ! -f /path/to/paper.pdf ] | |||
then | |||
curl "https://website/to/pdf" -L -o /path/to/paper.pdf | |||
sleep $((1 + RANDOM % 7)) | |||
else | |||
echo "File found. Download skipped." | |||
fi | |||
</pre> | |||
Same command | |||
<pre> | |||
if [ ! -f /path/to/paper.pdf ]; then curl "https://website/to/pdf" -L -o /path/to/paper.pdf; sleep $((1 + RANDOM % 7)); else echo "File found. Download skipped."; fi | |||
</pre> | |||
References | |||
* [https://www.cyberciti.biz/faq/bash-check-if-file-does-not-exist-linux-unix/ How to check if file does not exist in Bash - nixCraft] | |||
== PHP == | == PHP == | ||