Read HTTP output using shell/bash script

Question

My url (http://myhost.com/getuser/Default.aspx?username=b772643) returns the following line of of info always:

John, Thomas;[email protected]

I wish to read this line using a shell or bash script without wget/lynx. I'm in a situation where I cannot use any other utility, the perl language etc.

just verified. i can use curl

baluchen
– baluchen

2011-05-10 14:00:01 +00:00
Commented May 10, 2011 at 14:00 — baluchen
– baluchen, Commented May 10, 2011 at 14:00

jlliagre · Accepted Answer · 2011-05-10 14:16:25Z

24

Curl or wget are obviously better for the job but for the record bash and Unix standard commands (cat & printf) can do the job.

ksh introduced shell network internal handling and this has been adopted by bash.

#!/bin/bash

exec 5<> /dev/tcp/myhost.com/80
cat <&5 &
printf "GET /getuser/Default.aspx?username=b772643 HTTP/1.0\r\n\r\n" >&5

answered May 10, 2011 at 14:16

jlliagre

31.1k7 gold badges65 silver badges75 bronze badges

Sign up to request clarification or add additional context in comments.

6 Comments

ethree Over a year ago

Is it possible to do this in one line?

jlliagre Over a year ago

@ethree Sure, just put all commands , semi-colon separated, in a single line. You might also create a shell function.

jlliagre Over a year ago

@ethree Please define "isn't very happy" in more technical and descriptive terms.

ethree Over a year ago

Well, I think it's getting upset about the &'s. -bash: syntax error near unexpected token `;'

jlliagre Over a year ago

@ethree You probably put too much semicolons, please post the line you have issues with, that one works fine with me: (exec 5<> /dev/tcp/www.google.com/80;cat <&5 &;printf "GET /index.html HTTP/1.0\r\n\r\n" >&5)

|

ethree · Accepted Answer · 2014-09-30 21:39:19Z

5

One liner:

(echo 'GET /getuser/Default.aspx?username=b772643' > /dev/tcp/myhost.com/80);

answered Sep 30, 2014 at 21:39

ethree

1,6422 gold badges16 silver badges21 bronze badges

Comments

Cédric Julien · Accepted Answer · 2011-05-10 14:07:35Z

4

You could use :

curl "http://myhost.com/getuser/Default.aspx?username=b772643"

and extract the datas from what is returned :)

answered May 10, 2011 at 14:07

Cédric Julien

81.2k16 gold badges131 silver badges134 bronze badges

Comments

clt60 · Accepted Answer · 2011-05-10 14:09:51Z

3

so

curl "http://myhost.com/getuser/Default.aspx?username=b772643"


curl "http://myhost.com/getuser/Default.aspx?username=b772643"| sed 's/\(.*\);\(.*\)/\2 \1/' | while read email name; do echo =$email=$name=; done

edited May 10, 2011 at 14:09

answered May 10, 2011 at 14:04

clt60

64.3k17 gold badges114 silver badges206 bronze badges

1 Comment

baluchen Over a year ago

Thanks to everyone. all solution works good. Curl is best one curl "myhost.com/getuser/Default.aspx?username=b772643"

Collectives™ on Stack Overflow

Read HTTP output using shell/bash script

4 Answers 4

6 Comments

Comments

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

6 Comments

Comments

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related