How to Hide Wget Output in Linux

How to hide wget output in Linux?

Why don't you use -q?

From man wget:

-q
--quiet
   Turn off Wget's output.

Test

$ wget www.google.com
--2015-05-08 14:07:42--  http://www.google.com/
Resolving www.google.com (www.google.com)... 
  (...)
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ‘index.html’

    [ <=>                                                                                       ] 17,913      --.-K/s   in 0.01s   

2015-05-08 14:07:42 (1.37 MB/s) - ‘index.html’ saved [17913]

And:

$ wget -q www.google.com
$

How do I request a file but not save it with Wget?

Use q flag for quiet mode, and tell wget to output to stdout with O- (uppercase o) and redirect to /dev/null to discard the output:

wget -qO- $url &> /dev/null

> redirects application output (to a file). if > is preceded by ampersand, shell redirects all outputs (error and normal) to the file right of >. If you don't specify ampersand, then only normal output is redirected.

./app &>  file # redirect error and standard output to file
./app >   file # redirect standard output to file
./app 2>  file # redirect error output to file

if file is /dev/null then all is discarded.

This works as well, and simpler:

wget -O/dev/null -q $url

WGET without the log file

You could try -o and -q

-o logfile
   --output-file=logfile
       Log all messages to logfile.  The messages are  
       normally reported to standard error.
-q
 --quiet
     Turn off Wget's output.

So you'd have:

wget ... -q -o /dev/null ...

How do I make wget properly quiet?

that should work:

%> wget.exe parameters_here  1> NUL 2> NUL

How do you redirect wget response to standard out?

wget -O - http://whatever.com/page.php > /dev/null

or, if you want to redirect standard error output also:

wget -O - http://whatever.com/page.php > /dev/null 2>&1

or, for codegolf :-)

wget -O-

How can I show the wget progress bar only?

You can use the following filter:

progressfilt ()
{
    local flag=false c count cr=$'\r' nl=$'\n'
    while IFS='' read -d '' -rn 1 c
    do
        if $flag
        then
            printf '%s' "$c"
        else
            if [[ $c != $cr && $c != $nl ]]
            then
                count=0
            else
                ((count++))
                if ((count > 1))
                then
                    flag=true
                fi
            fi
        fi
    done
}

Usage:

$ wget --progress=bar:force http://somesite.com/TheFile.jpeg 2>&1 | progressfilt
100%[======================================>] 15,790      48.8K/s   in 0.3s

2011-01-13 22:09:59 (48.8 KB/s) - 'TheFile.jpeg' saved [15790/15790]

This function depends on a sequence of 0x0d0x0a0x0d0x0a0x0d being sent right before the progress bar is started. This behavior may be implementation dependent.

Hide variable application result from bash output

You can use:

RESULT=`wget --spider http://mysite.com 2>&1`

And this does the trick too:

RESULT=`wget -O wget.tmp http://mysite.com >/dev/null 2>&1`

Played around a little and came up with that one:

RESULT=`curl -fSw "%{http_code}" http://example.com/ -o a.tmp 2>/dev/null`

This outputs nothing but "200" - Nothing else.

wget and run/remove bash script in one line

I think you might need to actually execute it:

wget http://sitehere.com/install.sh -v -O install.sh; ./install.sh; rm -rf install.sh

Also, if you want a little more robustness, you can use && to separate commands, which will only attempt to execute the next command if the previous one succeeds:

wget http://sitehere.com/install.sh -v -O install.sh && ./install.sh; rm -rf install.sh

How do I suppress output from this Shell command

First both stdout(1) and stderr(2) point to your terminal.

You then redirect stderr to whatever your stdout points to. (Which is the terminal.)

Afterwards you redirect stdout to /dev/null. But stderr still points to the terminal.

You can do it the other way around >/dev/null 2>&1: This way you first redirect stdout to /dev/null and then stderr to the same.

Bash provides the shorthand &>/dev/null for this.

---

Related Topics