Question

我试图过滤＆＃34; 5＆＃34;并使用＆＃34; for＆＃34;用于打印3次

这是没有for循环的命令：

awk -v OFS='"' -v FS='Name": "'  'match($2, /5"/){print $0}' sumacomando

这是带for循环的命令：

awk -v OFS='"' -v FS='Name": "'  '{for(i=1;i<=3;i++) {match($2, /5"/); {print $0}}}' sumacomando

这不过滤只打印3次

我试图过滤＆＃34; 5＆＃34;并使用for打印3次。

"fechaName": "1","firstName": "gdrgo",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "222",dfg
"fechaName": "2","xxxxx": "John",    "firstName": "beto",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "111","xxxxx": "John",
"fechaName": "3","xxxxx": "John",    "firstName": "beto",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "111","xxxxx": "John",
"fechaName": "4","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "555", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "6","firstName": "gdrgo",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "222",dfg
"fechaName": "7","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",

awk -v OFS='"' -v   FS='Name": "'      '{for(i=1;i<=3;i++) {match($2, /5"/)  ;{  print $0}}}' sumacomando

这是我的输出

"fechaName": "1","firstName": "gdrgo",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "222",dfg
"fechaName": "1","firstName": "gdrgo",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "222",dfg
"fechaName": "1","firstName": "gdrgo",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "222",dfg
"fechaName": "2","xxxxx": "John",    "firstName": "beto",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "111","xxxxx": "John",
"fechaName": "2","xxxxx": "John",    "firstName": "beto",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "111","xxxxx": "John",
"fechaName": "2","xxxxx": "John",    "firstName": "beto",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "111","xxxxx": "John",
"fechaName": "3","xxxxx": "John",    "firstName": "beto",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "111","xxxxx": "John",
"fechaName": "3","xxxxx": "John",    "firstName": "beto",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "111","xxxxx": "John",
"fechaName": "3","xxxxx": "John",    "firstName": "beto",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "111","xxxxx": "John",
"fechaName": "4","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "555", "xxxxx": "John","xxxxx": "John",
"fechaName": "4","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "555", "xxxxx": "John","xxxxx": "John",
"fechaName": "4","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "555", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "6","firstName": "gdrgo",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "222",dfg
"fechaName": "6","firstName": "gdrgo",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "222",dfg
"fechaName": "6","firstName": "gdrgo",   "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John", "xxxxx": "John",   "lastName": "222",dfg
"fechaName": "7","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "7","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "7","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",

这是我的预期输出

"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",

这是我没有for循环的代码：

awk -v OFS='"' -v FS='Name": "'  'match($2, /5"/){print $0}' sumacomando

我怎么解决这个问题？

Answer 1

我已经告诉过你如何处理这样的问题。请参阅https://stackoverflow.com/a/42753485/1745001，然后在该答案中添加一行说明：

f["fechaName"]==5{for (i=1;i<=3;i++) print}

查找

$ cat tst.awk
BEGIN {
    FPAT = "([^,]*)|(\"[^\"]+\")"
    OFS = ","
}
{
    delete f
    for (i=1; i<=NF; i++) {
        split($i,t,/[[:space:]":]+/)
        f[t[2]] = t[3]
    }
}
f["fechaName"]==5 { for (i=1;i<=3;i++) print }

$ awk -f tst.awk file
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",

在你的问题中调试脚本，你写道：

{for(i=1;i<=3;i++) {match($2, /5"/)  ;{  print $0}}}

表示＆＃34;循环3次，调用match（）但对该match（）的结果无效，并无条件地打印当前行＆＃34;。你可能想写：

match($2, /5"/) { for(i=1;i<=3;i++) print }

但当然这种方法非常脆弱，因为它会为各种输入值产生错误的匹配，所以你绝对不应该使用它。

Answer 2

短？我甚至删除了空格：

$ awk '$2~/^"5"/{for(;++i<=3;)print}' file
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",
"fechaName": "5","xxxxx": "John",   "xxxxx": "John",    "firstName": "beto2", "xxxxx": "John","lastName": "444", "xxxxx": "John","xxxxx": "John",

为什么我的Awk命令在没有for循环的情况下过滤我的文本但是在添加for循环时没有？

2 个答案: