TerabyteTerminator/tools/db/bash-lib

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#!/bin/bash
#Bash-Library for TerabyteTerminator Project
LIBVER=1.1
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{ #set enviroemnt
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readonly TRUE=1 #like <stdbool.h>
readonly FALSE=0 #like <stdbool.h>
readonly TTSYNC_EXIST=0 #file exist local
readonly TTSYNC_BACKUP=1 #file exist local - backup exist
readonly TTSYNC_REMOTE=2 #file exists remote - not used jet
readonly TTSYNC_DEL=3 #local file deleted
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readonly globalconf="/etc/tt/global"
[ -z "$DEBUG" ] && readonly DEBUG=$FALSE
}
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# file_size <path> -> (du -b)/1024 [Kb]
function file_size() {
if [ -f "$1" ]; then
echo $(($(du -b "$1" | cut -f 1)/1024))
else
echo 0
fi
}
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# db_check -> TRUE/FALSE
function db_check() {
db_query "SHOW GRANTS FOR CURRENT_USER();" > /dev/null 2> /dev/null
if [ $? == 0 ]; then
echo $TRUE
else
echo $FALSE
fi
}
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# db_query <query> -> result
function db_query() {
local args="-sN" #no headers, no grid
args+=" -h$dbhost"
args+=" -u$dbuser"
[ -n "$dbpwd" ] && args+=" -p$dbpwd"
args+=" $dbname"
[ $DEBUG == $TRUE ] && echo $@ >&2
echo $@ | mysql $args
}