CODEWITHSUNDEEP
regexlinuxunixsed
kijirolu duatiga
kijirolu duatiga

Reputation: 68

How to do multiple pattern replaces with sed

This is my file example.txt

{foo}
{bar}
{f}oo}
{ba{r}
{fo}o}
{b{ar}

I want this result:

<div class="id">foo</div>
<div class="id">bar</div>
<div class="id">f}oo</div>
<div class="id">ba{r</div>
<div class="id">fo}o</div>
<div class="id">b{ar</div>

i have command in notepad++ to get result as above

([}]\r\n)|(\r\n[{])|(^[{])|([}]$)
(?1}</div>)(?2<div class="id">{)(?3<div class="id">{)(?4}</div>)

I tried with this sed command

sed -i 's@}\r\n@</div>@g' *.html

which left my file unchanged. How to do this correctly with sed?

Upvotes: 2

Views: 213

Answers (4)

codeforester
codeforester

Reputation: 43089

How about using two simple expressions, like this:

sed -i '' -e 's/^./<div class="id">/;s/.$/<\/div>/' file
  • replaces the first character with <div class="id"> and the last character with </div> leaving the rest of the line intact.
  • no need for any capture groups

Gives this output:

<div class="id">foo</div>
<div class="id">bar</div>
<div class="id">f}oo</div>
<div class="id">ba{r</div>
<div class="id">fo}o</div>
<div class="id">b{ar</div>

Upvotes: 1

Shakiba Moshiri
Shakiba Moshiri

Reputation: 23924

It may interest you to user Perl 

$ cat file
{foo}
{bar}
{f}oo}
{ba{r}
{fo}o}
{b{ar}
$
$ perl -lpe 's/^.(.*?).$/<div class="id">\1<\/div>/' file
$ 
<div class="id">foo</div>
<div class="id">bar</div>
<div class="id">f}oo</div>
<div class="id">ba{r</div>
<div class="id">fo}o</div>
<div class="id">b{ar</div>

It also has save in place like sed with -i

Upvotes: 0

RomanPerekhrest
RomanPerekhrest

Reputation: 92894

Use the following sed command with specific regex pattern:

sed -ri 's/\{(.+)\}/<div class="id">\1<\/div>/g' testfile

-r option allows extended regular expressions

\{(.+)\} - matches any characters enclosed with curly braces {}

\1 - points to the first captured group which is (.+)

Upvotes: 2

glenn jackman
glenn jackman

Reputation: 247210

How about

sed -e 's/{\(.*\)}/<div class="id">\1<\/div>/'

sed is line-oriented, so you won't find \n in a record (unless you're using some of the advanced commands).

Upvotes: 0

Related Questions