[Bash] Replace a single line in a document

[hop-frog]

I understand I can use > to send text to a document and >> to ammend text to a document. What do I use to replace (ex.) line 15 in a text document with another line?

[Hayl]

afaik you need to write a script in something such as perl for that.

[JohnT]

Originally posted by hop-frog
I understand I can use > to send text to a document and >> to ammend text to a document. What do I use to replace (ex.) line 15 in a text document with another line?


I prefer "Gedit" most of the time, but there are several.

:p

[Strogian]

I'd use sed. :)

[arn0ld]

you can use ex in batch mode
ex myfile<<!
15s/^.*$/new stuff/
w
q
!

this can be used in a script where myfile=$1 and "new stuff" =$2

[sploo22]

With sed, to change line 15 to "ooooh pretty colors", do this:

sed -e '15s/^.*$/ooooh pretty colors/' < file > /tmp/tempfile
rm file
mv /tmp/tempfile file

[hop-frog]

Thanks.