CODEWITHSUNDEEP
regexshellunixgrep
AnyaK
AnyaK

Reputation: 133

grep for single quote and double quote in a string

so i am trying to write a grep which finds the .epl file names or file paths in a given file.

I have tried the follwoing regexs

Part 1 : REGEX Used grep -rEco "\/(.+)\.epl|(.+)\.epl" ./index.epl Result obtained

    url => 'xyz.epl
    url => 'xyz.epl
    url => 'xyz.epl
    url => "packet/xyz.epl
    url => "/web/abc/xyz.epl
    url => qq{/web/abc/xyz.epl
    url => '/web/abc/def/xyz.epl
    url => '/web/abc/def/xyz.epl
    url => 'xyz.epl
    url => 'xyz.epl
    $url = "/web/abc/def/xyz.epl
    var requestURL = "xyz.epl
    var requestURL = "xyz.epl
    <a style="float:left;" href="xyz.epl
    [- Execute('components/xyz.epl
    Welcome, <a href="xyz.epl
    [- Execute('components/xyz.epl
    <a href="xyz.epl
    [- Execute(`'components/xyz.epl`

However I want it to match only the following(with or without the preceding quotes)

    'xyz.epl(OR xyz.epl)
    'xyz.epl
    'xyz.epl
    "packet/xyz.epl(OR packet/xyz.epl)
    "/web/abc/xyz.epl(OR "/web/abc/xyz.epl)
    /web/abc/xyz.epl
    '/web/abc/def/xyz.epl
    '/web/abc/def/xyz.epl
    'xyz.epl
    'xyz.epl
    "/web/abc/def/xyz.epl
    "xyz.epl
    "xyz.epl
    "xyz.epl
    'components/xyz.epl
    "xyz.epl
    'components/xyz.epl
    "xyz.epl
    'components/xyz.epl

To obtain the desired out i tried grep -rEoc '\/(.+)\.epl|[\"\'](.+)\.epl' However it gives me an unmatched '. error

I removed the quotes surrounding the regex and I got Badly placed ()'s.

please help me in achieving the correct desired output.

Upvotes: 1

Views: 615

Answers (2)

AnyaK
AnyaK

Reputation: 133

I found the answer to my question trhough two separate sources. One is explained here . The other one was 

set quote='"'; grep -E "\/(.+)\.epl|['${quote}](.+)\.epl" /index.epl

The set quote did the trick

Upvotes: 1

Walter A
Walter A

Reputation: 20002

How about telling what characters are accepted as part of the filenames:

grep -Eo "[0-9a-zA-Z/]*.epl" ./index.epl

Upvotes: 0

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