57 lines
1.3 KiB
Bash
Executable file
57 lines
1.3 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
|
|
# usage
|
|
usage() {
|
|
USAGE=$(cat <<EOF
|
|
Usage: check_updates [CONFIG_FILE (absolute path)]
|
|
|
|
If no CONFIG_FILE is given, HOME/.check_updates.conf is used. This fallback option
|
|
has to exist or the script will exit.
|
|
|
|
Configuration can be done in any file and any pre-defined variable can be overwritten.
|
|
|
|
The following are at least required for the script to work:
|
|
- CHECK_UPDATES_MAIL_ADDRESS="" // mail.rc has to be configured
|
|
|
|
You can copy this script to '/usr/local/bin' and use create a custom CONFIG_FILE as user. Examples can be found in '/usr/share/doc/<scriptname>'.
|
|
EOF
|
|
)
|
|
echo "$USAGE";
|
|
}
|
|
|
|
set -e;
|
|
|
|
HOSTNAME=$(hostname)
|
|
UPDATES=$(checkupdates)
|
|
UPDATES_AMOUNT=$(checkupdates|wc -l)
|
|
CHECK_UPDATES_MAIL_ADDRESS="";
|
|
|
|
# check for config file
|
|
source_config() {
|
|
local config=$1;
|
|
local configFallback=$2;
|
|
|
|
if [[ ! -f "$config" ]]; then
|
|
if [[ ! -f "$backupConfigFileFallback" ]]; then
|
|
echo "No config file specified and could not find default in '$configFallback'!";
|
|
echo "";
|
|
usage;
|
|
exit 1;
|
|
else
|
|
config=$configFallback;
|
|
fi
|
|
fi
|
|
|
|
set -a;
|
|
source "$config";
|
|
set +a;
|
|
}
|
|
source_config "$1" "$HOME/.check_updates.conf"
|
|
|
|
if [ "$UPDATES_AMOUNT" -gt "0" ]; then
|
|
mailx -s "[updates $HOSTNAME]" $CHECK_UPDATES_MAIL_ADDRESS << EOF
|
|
There are $UPDATES_AMOUNT updates available on $HOSTNAME.
|
|
|
|
$UPDATES
|
|
EOF
|
|
fi
|