spikegrobstein · April 30, 2012 02:35 · Apr 30, 2012 · Apr 30, 2012 · Apr 30, 2012 · Apr 30, 2012
diff --git a/postgres_backup.sh b/postgres_backup.sh
@@ -4,8 +4,13 @@
 ## postgres_backup
 ## back up postgres on a regular basis
 ## USAGE:
-##     ./postgres_backup [ <prefix> ]
+##     ./postgres_backup [ <prefix> ] [ <number_to_keep> ]
 ## prefix will default to 'pg'
+## number_to_keep defaults to 2
+##
+## Creates a backup in the form of <prefix>_<number>
+## Number to keep is the number of backups to keep (still not implemented.)
+##
 ## convention says you should use 'd' for daily backups and 'h' for hourly backups.
 ## example (for hourly):
 ##     ./postgres_backup h

diff --git a/hourly.sh → postgres_backup.sh b/hourly.sh → postgres_backup.sh
diff --git a/hourly.sh b/hourly.sh
@@ -1 +1,33 @@
-#!/bin/bash
+#! /bin/bash -
+
+####
+## postgres_backup
+## back up postgres on a regular basis
+## USAGE:
+##     ./postgres_backup [ <prefix> ]
+## prefix will default to 'pg'
+## convention says you should use 'd' for daily backups and 'h' for hourly backups.
+## example (for hourly):
+##     ./postgres_backup h
+## example (for daily):
+##     ./postgres_backup d
+####
+
+
+# initialize some variables
+
+BACKUP_DIR="/var/postgres/backup/"
+DATABASE="exchange_prod"
+ENCODING="SQL_ASCII"
+PG_DUMP="/usr/bin/pg_dump"
+PREFIX="${1:-pg}" # default to 'pg' for prefix
+
+cd "$BACKUP_DIR"
+
+# clean up
+rm -f "${PREFIX}_2" || true
+mv "${PREFIX}_1" "${PREFIX}_2"
+
+# do backup!
+$PG_DUMP -E${ENCODING} -Upostgres -Fc -f"${PREFIX}_1" "$DATABASE" \
+        || { echo "Errors occurred when backing up. OH NO." 2>&1; exit 1; }
diff --git a/hourly.sh b/hourly.sh
@@ -0,0 +1 @@
+#!/bin/bash