tricks on IT Quicktaskshttps://quicktasks.ismael.casimpan.com/tags/tricks/Recent content in tricks on IT QuicktasksHugo -- gohugo.ioCopyright © 2018–2022, Ismael Casimpan Jr.; All Rights ReservedThu, 12 Aug 2021 09:34:45 +0800Query Postgresql from Bash Command Linehttps://quicktasks.ismael.casimpan.com/post/query-pgsql-from-bash-cli/Thu, 12 Aug 2021 09:34:45 +0800https://quicktasks.ismael.casimpan.com/post/query-pgsql-from-bash-cli/ 1psql -c "<your_query_here>" Example, to show tables list: 1psql -c "\dt+"Source Only Bash Scripthttps://quicktasks.ismael.casimpan.com/post/source-bash-script-only/Thu, 12 Aug 2021 09:10:45 +0800https://quicktasks.ismael.casimpan.com/post/source-bash-script-only/ In some cases, you may need to import the existing environments in bash. Use the following at the top of your script. 1if [ "${BASH_SOURCE[0]}" -ef "$0" ] 2then 3echo "Hey, you should source this script, not execute it!" 4exit 1 5fi See details in https://unix.stackexchange.com/questions/424492/how-to-define-a-shell-script-to-be-sourced-not-run/424498