TAG» bash
bash array crawler
I wanted to complement my bash directory crawler post with a bash array crawler example.
Sometimes, it’s easier to jack a list of identifying tokens into an array and process them rather than to build an end-to-end script with database access. For this contrived example, I grab a list of UUID from MySQL with a simple SQL statement.
mysql> SELECT id, uuid FROM icons; +-----+--------------------------------------+ | id | uuid | +-----+--------------------------------------+ | 1 | fe0b16ed-3369-4dda-8e60-faffb966375d | | 3 | 82bfcbc2-84a2-4ca7-914b-13172b94feb6 | | 6 | ab5e7265-3698-4205-b081-e6aec528fee2 | | 11 | 4b6ca26b-c6ed-494f-aeb4-9bf369e2d465 | | 19 | e7cc807b-7f15-46fa-b1c5-85d1f1050155 | +-----+--------------------------------------+ 5 rows in set (0.00 sec)
Next, jack the tokens into an array and simply crawl over the tokens.
#!/bin/bash
uuids=(
fe0b16ed-3369-4dda-8e60-faffb966375d
82bfcbc2-84a2-4ca7-914b-13172b94feb6
ab5e7265-3698-4205-b081-e6aec528fee2
4b6ca26b-c6ed-494f-aeb4-9bf369e2d465
e7cc807b-7f15-46fa-b1c5-85d1f1050155
)
for uuid in ${uuids[@]} ; do
# do something interesting here
echo "http://icons.example.com/${uuid}.jpg"
# curl
# --request GET
# --remote-name
# --url "http://icons.example.com/${uuid}.jpg"
done