我有一个config文件，看起来像这样：
{
"reads": {
"no_Reads": 5000000,
"length": 150,
"insert_length": 300,
"insert_sd": 10
},
"no_Samples" : 20,
"species_dist_Params": {
"mean_log_Mean": 1.0,
"sd_log_Mean": 0.25,
"k_log_Sd": 1.0,
"theta_log_Sd": 1.0,
"beta": 1.0,
"alpha": 1.0
},
"no_Species" : 100,
"species": [
{
"dir": "Strain_35814/",
"nStrains": "4"
},
{
"dir": "Strain_285/",
"nStrains": "2"
},
{
"dir": "Strain_438/",
"nStrains": "1"
},
{
"dir": "Strain_1833/",
"nStrains": "3"
},
{
"dir": "Strain_782/",
"nStrains": "1"
},
{
"dir": "Strain_1509/",
"nStrains": "2"
},
{
"dir": "Strain_2095/",
"nStrains": "2"
},
{
"dir": "Strain_85698/",
"nStrains": "2"
},
{
"dir": "Strain_382/",
"nStrains": "2"
},
{
"dir": "Strain_2096/",
"nStrains": "3"
},
{
"dir": "Strain_1582/",
"nStrains": "1"
},
{
"dir": "Strain_1245/",
"nStrains": "1"
},
{
"dir": "Strain_1452/",
"nStrains": "2"
},
{
"dir": "Strain_1613/",
"nStrains": "1"
},
{
"dir": "Strain_43080/",
"nStrains": "1"
},
{
"dir": "Strain_29519/",
"nStrains": "3"
},
{
"dir": "Strain_96345/",
"nStrains": "3"
},
{
"dir": "Strain_777/",
"nStrains": "3"
},
{
"dir": "Strain_375/",
"nStrains": "1"
},
{
"dir": "Strain_168695/",
"nStrains": "1"
},
{
"dir": "Strain_236/",
"nStrains": "1"
},
{
"dir": "Strain_358/",
"nStrains": "1"
},
{
"dir": "Strain_399/",
"nStrains": "1"
},
{
"dir": "Strain_109790/",
"nStrains": "1"
},
{
"dir": "Strain_1718/",
"nStrains": "1"
},
{
"dir": "Strain_2252/",
"nStrains": "2"
},
{
"dir": "Strain_729/",
"nStrains": "1"
},
{
"dir": "Strain_1334/",
"nStrains": "1"
},
{
"dir": "Strain_1624/",
"nStrains": "1"
},
{
"dir": "Strain_29484/",
"nStrains": "1"
},
{
"dir": "Strain_636/",
"nStrains": "1"
},
{
"dir": "Strain_1408/",
"nStrains": "1"
},
{
"dir": "Strain_1402/",
"nStrains": "2"
},
{
"dir": "Strain_2287/",
"nStrains": "1"
},
{
"dir": "Strain_582/",
"nStrains": "1"
},
{
"dir": "Strain_57975/",
"nStrains": "1"
},
{
"dir": "Strain_38323/",
"nStrains": "1"
},
{
"dir": "Strain_2039/",
"nStrains": "1"
},
{
"dir": "Strain_486/",
"nStrains": "1"
},
{
"dir": "Strain_738/",
"nStrains": "1"
},
{
"dir": "Strain_305/",
"nStrains": "4"
},
{
"dir": "Strain_1580/",
"nStrains": "1"
},
{
"dir": "Strain_1542/",
"nStrains": "1"
},
{
"dir": "Strain_553/",
"nStrains": "4"
},
{
"dir": "Strain_774/",
"nStrains": "4"
},
{
"dir": "Strain_83560/",
"nStrains": "2"
},
{
"dir": "Strain_715/",
"nStrains": "3"
},
{
"dir": "Strain_1502/",
"nStrains": "2"
},
{
"dir": "Strain_948/",
"nStrains": "4"
},
{
"dir": "Strain_54291/",
"nStrains": "1"
},
{
"dir": "Strain_480/",
"nStrains": "3"
},
{
"dir": "Strain_1349/",
"nStrains": "1"
},
{
"dir": "Strain_83558/",
"nStrains": "3"
},
{
"dir": "Strain_366648/",
"nStrains": "1"
},
{
"dir": "Strain_747/",
"nStrains": "1"
},
{
"dir": "Strain_750/",
"nStrains": "1"
},
{
"dir": "Strain_837/",
"nStrains": "1"
},
{
"dir": "Strain_1911/",
"nStrains": "1"
},
{
"dir": "Strain_1238/",
"nStrains": "1"
},
{
"dir": "Strain_644/",
"nStrains": "1"
},
{
"dir": "Strain_196/",
"nStrains": "1"
},
{
"dir": "Strain_552/",
"nStrains": "2"
},
{
"dir": "Strain_40576/",
"nStrains": "2"
},
{
"dir": "Strain_28025/",
"nStrains": "1"
},
{
"dir": "Strain_43306/",
"nStrains": "1"
},
{
"dir": "Strain_663/",
"nStrains": "1"
},
{
"dir": "Strain_29447/",
"nStrains": "5"
},
{
"dir": "Strain_546/",
"nStrains": "3"
},
{
"dir": "Strain_48296/",
"nStrains": "1"
},
{
"dir": "Strain_1308/",
"nStrains": "5"
},
{
"dir": "Strain_1398/",
"nStrains": "2"
},
{
"dir": "Strain_1338/",
"nStrains": "1"
},
{
"dir": "Strain_770/",
"nStrains": "2"
},
{
"dir": "Strain_9/",
"nStrains": "4"
},
{
"dir": "Strain_75985/",
"nStrains": "4"
},
{
"dir": "Strain_1406/",
"nStrains": "4"
},
{
"dir": "Strain_33970/",
"nStrains": "1"
},
{
"dir": "Strain_587753/",
"nStrains": "4"
},
{
"dir": "Strain_39152/",
"nStrains": "5"
},
{
"dir": "Strain_2208/",
"nStrains": "5"
},
{
"dir": "Strain_2209/",
"nStrains": "5"
},
{
"dir": "Strain_2162/",
"nStrains": "2"
},
{
"dir": "Strain_43687/",
"nStrains": "1"
},
{
"dir": "Strain_2173/",
"nStrains": "1"
},
{
"dir": "Strain_1219/",
"nStrains": "1"
},
{
"dir": "Strain_28173/",
"nStrains": "2"
},
{
"dir": "Strain_1598/",
"nStrains": "1"
},
{
"dir": "Strain_1358/",
"nStrains": "1"
},
{
"dir": "Strain_714/",
"nStrains": "4"
},
{
"dir": "Strain_34085/",
"nStrains": "5"
},
{
"dir": "Strain_1076/",
"nStrains": "2"
},
{
"dir": "Strain_1270/",
"nStrains": "2"
},
{
"dir": "Strain_2371/",
"nStrains": "5"
},
{
"dir": "Strain_1681/",
"nStrains": "5"
},
{
"dir": "Strain_28197/",
"nStrains": "3"
},
{
"dir": "Strain_28108/",
"nStrains": "5"
},
{
"dir": "Strain_1744/",
"nStrains": "2"
},
{
"dir": "Strain_300/",
"nStrains": "2"
},
{
"dir": "Strain_160/",
"nStrains": "5"
},
{
"dir": "Strain_316/",
"nStrains": "1"
}
],
"max_seqs" : 5,
"min_div" : 0.01,
"max_div" : 10.0,
"min_scg" : 35
}
我有一个文件a2看起来像这样：
1
1
1
2
3
1
3
1
3
4
4
2
1
2
5
1
2
5
2
1
1
2
2
1
2
2
1
3
1
1
1
1
2
2
1
7
1
2
1
1
4
1
1
1
5
1
2
1
3
3
1
1
1
1
3
1
1
1
1
4
1
1
1
6
1
1
4
2
1
1
1
1
1
9
4
1
2
1
2
2
2
2
3
1
3
1
2
2
1
3
4
1
2
3
1
3
2
1
6
7
我想用文件"nStrains":中的行替换a2之后的数字。所需的输出是：
{
"dir": "Strain_35814/",
"nStrains": "1"
},
{
"dir": "Strain_285/",
"nStrains": "1"
},
{
"dir": "Strain_438/",
"nStrains": "1"
...
我尝试过
awk 'NR==FNR {a[$1];next}/nStrains/{$2="a"}1' a2 FS=":" config > config_new
但似乎不起作用。我想我已经完成了数组部分的修改。我该如何解决？它不起作用的原因是什么？非常感谢你。
答案 0 :(得分：3)
这是一种减少精简的解决方案。注意，因为使用了inputs，所以需要-n选项。使用-R选项主要是因为要求隐式指定替换值应为字符串，而且还出于健壮性考虑：
jq -Rn --argfile config config.json -f update.jq a2
[inputs] as $dict
| $config
| .species |= [to_entries[] | (.value.nStrains = $dict[.key]) | .value]
答案 1 :(得分：2)
最好使用jq来处理JSON数据。
在下面的代码中，我使用了reduce，因为with_entries不适用于数组。
jq '.species |= (
to_entries | map(.value.nStrains = $repl[.key]) |
reduce .[] as $item ([]; .[$item.key] = $item.value)
)' --argfile repl a2 config
有关更多信息，请参见man jq。