50 lines
1.1 KiB
Plaintext
50 lines
1.1 KiB
Plaintext
|
#!/bin/sh
|
||
|
|
# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
|
||
|
|
|
||
|
|
# This program is free software: you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License as published by
|
||
|
|
# the Free Software Foundation, either version 3 of the License, or
|
||
|
|
# (at your option) any later version.
|
||
|
|
|
||
|
|
# This program is distributed in the hope that it will be useful,
|
||
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
# GNU General Public License for more details.
|
||
|
|
|
||
|
|
# You should have received a copy of the GNU General Public License
|
||
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
TYPE="${BLOCK_INSTANCE:-mem}"
|
||
|
|
|
||
|
|
awk -v type=$TYPE '
|
||
|
|
/^MemTotal:/ {
|
||
|
|
mem_total=$2
|
||
|
|
}
|
||
|
|
/^MemFree:/ {
|
||
|
|
mem_free=$2
|
||
|
|
}
|
||
|
|
/^Buffers:/ {
|
||
|
|
mem_free+=$2
|
||
|
|
}
|
||
|
|
/^Cached:/ {
|
||
|
|
mem_free+=$2
|
||
|
|
}
|
||
|
|
/^SwapTotal:/ {
|
||
|
|
swap_total=$2
|
||
|
|
}
|
||
|
|
/^SwapFree:/ {
|
||
|
|
swap_free=$2
|
||
|
|
}
|
||
|
|
END {
|
||
|
|
# full text
|
||
|
|
if (type == "swap")
|
||
|
|
printf("%.1fG\n", (swap_total-swap_free)/1024/1024)
|
||
|
|
else
|
||
|
|
printf("%.1fG\n", mem_free/1024/1024)
|
||
|
|
|
||
|
|
# TODO: short text
|
||
|
|
|
||
|
|
# TODO: color (if less than X%)
|
||
|
|
}
|
||
|
|
' /proc/meminfo
|