HPR2113: sqlite and bash

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8y ago

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Crontab

0 3 * * 0 /bin/du -m /data/ > /home/USER/du_files/"du_$(/bin/date +\%Y\%m\%d)"

Script

cd ~/du_files TODAYS_FILE="du_$(/usr/bin/date +%Y%m%d)" YESTERDAYS_FILE="du_$(/usr/bin/date --date="7 days ago" +%Y%m%d)" /usr/bin/echo "create table old (oldsize integer, path varchar);" > delta.sql /usr/bin/echo "create table new (newsize integer, path varchar);" >> delta.sql /usr/bin/echo '.separator "\t" ' >> delta.sql /usr/bin/echo ".import $TODAYS_FILE new" >> delta.sql /usr/bin/echo ".import $YESTERDAYS_FILE old" >> delta.sql /usr/bin/echo ".mode csv" >> delta.sql /usr/bin/echo ".headers on" >> delta.sql /usr/bin/echo ".out deltas.csv" >> delta.sql /usr/bin/echo "select *,newsize-oldsize as delta_in_megabytes from old natural join new where oldsize> delta.sql /usr/bin/sqlite3 < delta.sql echo $YESTERDAYS_FILE|/usr/bin/mailx -a deltas.csv -s deltas.csv me@mywork.com

Resulting SQL

create table old (oldsize integer, path varchar); create table new (newsize integer, path varchar); .separator "\t" .import du_20160821 new .import du_20160814 old .mode csv .headers on .out deltas.csv select *,newsize-oldsize as delta_in_megabytes from old natural join new where oldsize

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