How do I pipe or redirect the output of curl -v

Question

For some reason the output always gets printed to the terminal  regardless of whether I redirect it via 2  or   or    Is there a way to get around this  Why is this happening

User · Answer

If you need the output in a file you can use a redirect   curl https   vi stackexchange com  -vs  gt curl-output txt 2 gt  amp 1   Please be sure not to flip the  gt curl-output txt and 2 gt  amp 1  which will not work due to bash s redirection behavior

User · Answer

I found the same thing  curl by itself would print to STDOUT  but could not be piped into another program   At first  I thought I had solved it by using xargs to echo the output first   curl -s      lt url gt    xargs -0 echo         But then  as pointed out in the comments  it also works without the xargs part  so -s  silent mode  is the key to preventing extraneous progress output to STDOUT   curl -s      lt url gt    perl  -ne  print  1 if   lt sometag gt     lt         The above example grabs the simple  lt sometag gt  content  containing no embedded tags  from the XML output of the curl statement

User · Answer

The following worked for me   Put your curl statement in a script named abc sh  Now run   sh abc sh 1 gt stdout output 2 gt stderr output   You will get your curl s results in stdout output and the progress info in stderr output

User · Answer

Just my 2 cents  The below command should do the trick  as answered earlier  curl -vs google com 2 gt  amp 1   However if need to get the output to a file   curl -vs google com  gt  out txt 2 gt  amp 1   should work

User · Answer

The answer above didn t work for me  what did eventually was this syntax   curl https     URL   amp  gt   dev stdout   tee -a   LOG   tee puts the output on the screen  but also appends it to my log

User · Answer

add the -s  silent  option to remove the progress meter  then redirect stderr to stdout to get verbose output on the same fd as the response body  curl -vs google com 2 gt  amp 1   less

User · Answer

This simple example shows how to capture curl output  and use it in a bash script test sh function main      curl -vs  http   google com   2 gt  amp 1     note  add -o  tmp ignore png if you want to ignore binary output  by saving it to a file        capture output of curl to a variable OUT   main     search output for something using grep  echo echo  quot  OUT quot    grep 302  echo echo  quot  OUT quot    grep title

User · Answer

Your URL probably has ampersands in it   I had this problem  too  and I realized that my URL was full of ampersands  from CGI variables being passed  and so everything was getting sent to background in a weird way and thus not redirecting properly   If you put quotes around the URL it will fix it

[linux] How do I pipe or redirect the output of curl -v?

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