CODEWITHSUNDEEP
sedfreebsd
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Reputation: 67

How to add a new line in freebsd 10.2

In freebsd 10.2

I have a text file ie. test.txt The file contains The follow lines

    Line1
    Line2
    Line3
    option
    #i want to add here Mynewline text 
    Line4
    Line5
    Line6
    Line7

i try sed -i '' 's/option/option\Mynewline/g' test.txt

 Line1
 Line2
 Line3
 optionMynewline
 Line4
 Line5
 Line6
 Line7

Upvotes: 2

Views: 648

Answers (4)

nbari
nbari

Reputation: 26895

Give a try to: 

perl -pi -e 's/option/option\n/' file

or 

perl -pi -e 's/option/option\n# my new line/' file

The file will be now something like:

Line1
Line2
Line3
option
# my new line
Line4
Line5
Line6
Line7

By using "perl pie" besides adding only the new line it won't modify the file like with sed that adds a new \n if file doesn't end with a \n (Replace all occurrences without changing file endings)

Upvotes: 0

Yuri Ginsburg
Yuri Ginsburg

Reputation: 2601

BSD sed does not interpret '\n' as new line, so you can use an actual newline, escaped by a backslash.

cat f.txt 
Line1
Line2
Line3
option
Line4
Line5
Line6
Line7

$ sed  -i '' 's/option/option\
Mynewline/g' f.txt

$ cat f.txt 
Line1
Line2
Line3
option
Mynewline
Line4
Line5
Line6
Line7

Another option is to install and use gsed.

Upvotes: 0

potong
potong

Reputation: 58351

This might work for you:

sed -i '.bak' -e '/^option/p' -e '//s/.*/myNewLine/' file

Or:

sed -i '' '/^option/{p;s/.*/newline/;}' file

Or:

cat <<\! | sed -i '.bak' -f /dev/stdin file
/option/a\
newline
!

Or:

sed -i '' '/^option/{G;s/$/myNewLine/;}' file

Or:

cat <<\! | sed -i '' -f /dev/stdin file
/option/p
//c\
newline
!

Upvotes: 0

Jotne
Jotne

Reputation: 41446

If you can use awk, this should do:

awk '/option/ {$0=$0"\nMy new line"} 1' file

If option is found, add new line and text to the line, and then print all

Upvotes: 3

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