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43 lines
1.2 KiB
Bash
43 lines
1.2 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2019-12-10 11:33:52 +0000 (Tue, 10 Dec 2019)
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#
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# https://github.com/harisekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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# Lists all Impala databases using adjacent impala_shell.sh script
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#
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# FILTER environment variable will restrict to matching databases (if giving <db>.<table>, matches up to the first dot)
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#
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# Tested on Impala 2.7.0, 2.12.0 on CDH 5.10, 5.16 with Kerberos and SSL
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#
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# For more documentation see the comments at the top of impala_shell.sh
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# For a better version written in Python see DevOps Python tools repo:
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#
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# https://github.com/harisekhon/devops-python-tools
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(dirname "$0")"
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# strip comments after database name, eg.
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# default Default Hive database
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"$srcdir/impala_shell.sh" --quiet -Bq 'SHOW DATABASES' "$@" |
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awk '{print $1}' |
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while read -r db; do
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if [ -n "${FILTER:-}" ] &&
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! [[ "$db" =~ ${FILTER%%.*} ]]; then
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continue
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fi
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printf '%s\n' "$db"
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done
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