问如果存在，Awk打印匹配列，否则找不到打印

EN

$ awk -v n="inbound" -F'[ =]+' '{delete f; for (i=1;i<NF;i+=2) f[$i]=$(i+1); print (n in f ? f[n] : "0 Not Found")}' file
100
100
0 Not Found

$ awk -v n="outbound" -F'[ =]+' '{delete f; for (i=1;i<NF;i+=2) f[$i]=$(i+1); print (n in f ? f[n] : "0 Not Found")}' file
100
0 Not Found
100
$
$ awk -v n="date" -F'[ =]+' '{delete f; for (i=1;i<NF;i+=2) f[$i]=$(i+1); print (n in f ? f[n] : "0 Not Found")}' file
"2017-10-10"
"2017-10-10"
"2017-10-10"
$
$ awk -v n="ip" -F'[ =]+' '{delete f; for (i=1;i<NF;i+=2) f[$i]=$(i+1); print (n in f ? f[n] : "0 Not Found")}' file
192.168.1.1:22
192.168.1.1:22
192.168.1.1:22

awk '{print match($0,/inbound=([0-9]+)/,a)?a[1]:0}' file

perl -lne 'print /inbound=(\d+)/?$1:0' file

sed 's/.*inbound=\([0-9]\+\).*/\1/;t;s/.*/0/' file

$ cat file
date="2017-10-10" ip=192.168.1.1:22 inbound=100 outbound=100
date="2017-10-10" ip=192.168.1.1:22 inbound=100
date="2017-10-10" ip=192.168.1.1:22  outbound=100

$ awk '{if(match($0,/inbound=[0-9]+/)){s=substr($0,RSTART,RLENGTH); print substr(s,index(s,"=")+1);next}print 0,"Not Found"}' file
100
100
0 Not Found

awk '{

    # Search for word inbound=[0-9]+ in record/line/row, if found then
    if(match($0,/inbound=[0-9]+/))
    {
        # Extract word
        s=substr($0,RSTART,RLENGTH)

        # Print value which is after "="  
        print substr(s,index(s,"=")+1)

        # Go to next line
        next
    }

      # If above condition is not true then word inbound not found in line/row/record

      print 0,"Not Found"
  }
 ' file