Use __linux for awk and sub/gsub in field interception and substitution in Linux

The Gsub function causes the substitution to occur when all regular expressions are matched

Gsub (Regular expression, subsitution string, target string), short gsub (r,s,t)

Sub matches the first occurrence of a conforming pattern string, equivalent to sed ' s//'.
Gsub matches all matching pattern strings, equivalent to sed ' s//g '

Instance One
Remove a number from the second field
echo "0001|20081223efskjfdj| EREADFASDLKJCV "|awk-f ' |" ' Begin{ofs= ' |} {gsub (/[0-9]+/, "", 2);p rint 2);p rint 0} '
0001|efskjfdj| Ereadfasdlkjcv

Example Two
/split, take out the snapshots to know the field between the penultimate fourth (where/the number is not sure, so it is not convenient to directly use awk 6, 6,7,$8 to directly fetch, use the field interception),. Separate com.netfinworks.authorize
Example

/users/yfan/downloads/dsc20170801_jar/snapshots/com/netfinworks/authorize/authorize-service/1.0.0-snapshot/ Authorize-service-1.0.0-snapshot.jar

Set a variable first

Yfandemacbook-pro:pbs yfan$ test=/users/yfan/downloads/dsc20170801_jar/snapshots/com/netfinworks/authorize/ Authorize-service/1.0.0-snapshot/authorize-service-1.0.0-snapshot.jar

Use symbol truncation (# #) in Linux to remove the front part of COM

Yfandemacbook-pro:pbs yfan$ Echo ${test##*snapshots/}

Results

Com/netfinworks/authorize/authorize-service/1.0.0-snapshot/authorize-service-1.0.0-snapshot.jar

In awk, combine gsub to get rid of the back section (penultimate, second, third field)

Yfandemacbook-pro:pbs yfan$ echo ${test##*snapshots/}|awk-f '/' {gsub ("/" $ (NF-2) "/" $ (NF-1) "/" $NF, "");p rint} '

Results

Com/netfinworks/authorize

Finally, use SED. To replace/to accomplish a goal

Yfandemacbook-pro:pbs yfan$ echo ${test##*snapshots/}|awk-f '/' {gsub ("/" $ (NF-2) "/" $ (NF-1) "/" $NF, "");p rint} ' |sed  ' s/\//./g '

Results

Com.netfinworks.authorize

Gsub Description Reference:
Http://blog.sina.com.cn/s/blog_67e34ceb0100ybvg.html