[問題] If condition怎麼寫怎麼錯已刪文
我想檢驗記憶體剩下多少
所以想利用if做判斷
以下為程式碼
-----------
!/bin/bash
mem=$(free -h | awk '{print $6}' | sed 's/G//g' | grep "[0-9]")
warm=10
echo $mem
if [ ${mem}-gt{$warm} ] ;then
echo "$mem is greater than $warm"
fi
if [ ${mem}-lt{$warm} ] ;then
echo "$mem is less than $warm"
fi
if [ "${mem}" -gt "{$warm}" ] ;then
echo "$mem is greater than $warm"
fi
if [ ${mem} -gt {$warm} ] ;then
echo "$mem is greater than $warm"
fi
-----------
但問題是我不管怎麼寫if都不會有正確的判斷
此指令執行後結果如下
32
32 is greater than 10
32 is less than 10
-bash: [: {10}: integer expression expected
-bash: [: {10}: integer expression expected
我想問我到底是哪裡做錯了?
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→
03/22 11:38,
5年前
, 1F
03/22 11:38, 1F
感謝 終於成功了
※ 編輯: k97231 (140.122.152.43), 03/22/2019 11:43:57
推
03/22 12:10,
5年前
, 2F
03/22 12:10, 2F