CODEWITHSUNDEEP
bashsed
Desnoyll
Desnoyll

Reputation: 13

Replace a string followed by a numerical value with another string and a new numerical value

Using sed, trying to achieve something like below.

Existing text: Value 7

New text: Value 2

The trick here is, I am trying to replace all the files in a directory with multiple values (Ex: Value 7, Value 6, Value 27, Value 108,...) with Value 2.

Here's what I tried already:

 sed -i 's/Value */Value 2/g' *

But this does replace only the Value (Ex: It replaces Value 6 to Value 26).It replaces "Value" with "Value 2"

Tried So far:

sed -i 's/Value */Value 2/g' * sed -i 's/Value '*'/Value 2/g' *

It still replaces Value only but not the number. I need all the "Value *" to be replaced with "Value 2"

Upvotes: 0

Views: 74

Answers (2)

potong
potong

Reputation: 58568

This might work for you (GNU sed):

sed -E 's/\<(Value [^,]+, )*(Value) [^,]*/\2 2/g' file

This replaces a list of values or a single value with a single value, globally within a line.

Upvotes: 0

oguz ismail
oguz ismail

Reputation: 50805

Value * matches Value followed by zero or more spaces. You should use Value [0-9]* instead. Like:

sed -i 's/Value [0-9]*/Value 2/g' *

or you can put Value in a capturing group to avoid rewriting it:

sed -i 's/\(Value \)[0-9]*/\12/g' *

Upvotes: 1

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