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question about sed

question about sed# Unix - 噫吁兮，危乎高哉

e*e2004-02-13 08:02

1 楼

when I use sed to replace a string in a file, it only shows on the screen that
string has been changed, but when I open that file, it is still the same as
before.
the command I used is:
sed -e 's,oldstr,newstr,' filename
thanks.

c*r2004-02-13 08:02

2 楼

You need output it to another file like:
sed -e 's,oldstr,newstr,' filename >filename1

【在 e****e 的大作中提到】

: when I use sed to replace a string in a file, it only shows on the screen that
: string has been changed, but when I open that file, it is still the same as
: before.
: the command I used is:
: sed -e 's,oldstr,newstr,' filename
: thanks.