如何按編號訂購desc或asc特定列

Question

想要通過編號desc或asc訂購“usedsize”列。

輸入：

{"name":"db1","tablespace":"TEMP","size":"1000","maxsize":"65536","usedsize":"21","status":0.03},
{"name":"db1","tablespace":"DAT","size":"360612","maxsize":"475680","usedsize":"360321","status":75.75},
{"name":"db1","tablespace":"CUNBDAT","size":"23800","maxsize":"131072","usedsize":"23694","status":18.08},

我嘗試使用分隔符和coulmn行，但似乎有些錯誤：

sort -t: -k10

預期觀點：

{"name":"db1","tablespace":"DAT","size":"360612","maxsize":"475680","usedsize":"360321","status":75.75},
{"name":"db1","tablespace":"CUNBDAT","size":"23800","maxsize":"131072","usedsize":"23694","status":18.08},
{"name":"db1","tablespace":"TEMP","size":"1000","maxsize":"65536","usedsize":"21","status":0.03},

Answer 1

它不是第10列而是第6列：

$ sort -t: -k6 file
{"name":"db1","tablespace":"TEMP","size":"1000","maxsize":"65536","usedsize":"21","status":0.03},
{"name":"db1","tablespace":"CUNBDAT","size":"23800","maxsize":"131072","usedsize":"23694","status":18.08},
{"name":"db1","tablespace":"DAT","size":"360612","maxsize":"475680","usedsize":"360321","status":75.75}

Answer 2

你可以說

sort -t, -k5,5r filename

如果您按下輸入以使其成為有效的JSON，您可以像這樣使用perl：

perl -MJSON -00 -le '
    $data = decode_json(<>);
    print encode_json([sort {$b->{usedsize} <=> $a->{usedsize}} @$data]);
' <<END
[
{"name":"db1","tablespace":"TEMP","size":"1000","maxsize":"65536","usedsize":"21","status":0.03},
{"name":"db1","tablespace":"DAT","size":"360612","maxsize":"475680","usedsize":"360321","status":75.75},
{"name":"db1","tablespace":"CUNBDAT","size":"23800","maxsize":"131072","usedsize":"23694","status":18.08}
]
END

[{ “狀態”：75.75， “姓名”： “DB1”， “usedsize”： “360321”， “MAXSIZE”： “475680”， “大小”： “360612”， “表”： “DAT”}，{ “狀態”：18.08， “名”： “DB1”， “usedsize”： “23694”， “最大范圍”： “131072”， “大小”： “23800”， “表”： “CUNBDAT”}，{“狀態“：0.03，” 姓名 “：” DB1" ， “usedsize”： “21”， “MAXSIZE”： “65536”， “大小”： “1000”， “表”： “TEMP”}]