Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
170 views
in Technique[技术] by (71.8m points)

string - Increase numbers in file using sed and regexp

I want to increase all numbers in file by 1000 with follow pattern:

'... comment_count') VALUES ( 15132, ...
'... comment_count') VALUES ( 15133, ...
'... comment_count') VALUES ( 16134, ...
.
.

I want after change output be like this:

'... comment_count') VALUES ( 16132, ...
'... comment_count') VALUES ( 16133, ...
'... comment_count') VALUES ( 17134, ...
.
.

I tried something like this but not work:

 sed -r 's/`comment_count`) VALUES ( (d+)/echo "11$((1+1000))"/ge'  test.txt 
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

sed cannot do maths or string manipulations in replacement.

You may use this perl solution:

perl -pe "s~(comment_count')h+VALUESh+(h+)(d+)~$1.($2+1000)~e" file

'... comment_count') VALUES ( 16132, ...
'... comment_count') VALUES ( 16133, ...
'... comment_count') VALUES ( 17134, ...

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...