Need to grep a specific string using curl Need to grep a specific string using curl curl curl

Need to grep a specific string using curl


bash curl awk grep

Using any sed in any shell on every Unix box:

$ curl -Ls yahoo.com | sed -n 's/^<html.* lang="\([^"]*\).*/\1/p'en-US

bash curl awk grep

If you have gnu-grep then using -P (perl regex):

curl -Ls yahoo.com | grep -oP '\slang="\K[^"]+'he-IL

bash curl awk grep

With awk's match function one could try following too.

your_curl_command | awk 'match($0,/^<html.*lang="[^"]*/){  val=substr($0,RSTART,RLENGTH)  sub(/.*lang="/,"",val)  print val}'

Explanation: Adding detailed explanation for above.

your_curl_command | awk '          ##Starting awk program from here.match($0,/^<html.*lang="[^"]*/){   ##using match function to match regex starting from <html till lang=" till next 1st occurrence of "  val=substr($0,RSTART,RLENGTH)    ##Creating val which has substring of matched values.  sub(/.*lang="/,"",val)           ##Substituting everything till lang=" with NULL in val here.  print val                        ##printing val here.}'

Recent Posts
How can I color dots in a xy scatterplot according to column value?
How to update a claim in ASP.NET Identity?
What does {0} mean when initializing an object?
Accessing members of items in a JSONArray with Java
How to log SQL statements in Spring Boot?
Powershell Get-WebSite name parameter is ignored
How to detect scroll to bottom of html element
Java synchronized method
How to test controllers with CodeIgniter?
Detect Visual Composer
Matplotlib: Specify format of floats for tick labels
Rails join a list of strings with commas and "and" before the last