Set-Cookie: NID=511=CeFWgDo2-TR1PqQSpvyZkMCfZdtLSEIELe9T6KhKT2LaMR_QD8gNU2IkhQppOPHPPccQK8emgfYCyBUZZHfZpKbNPqJ8NgCCizFAI-oOSuh5B3ISULBVxUuaIjL5MZ6wp0EGKc-qv_hVvmgmhlRe7rjRdjgwXs3Svp2ubTnWNFg expires=Sun, 0 20:10:04 GMT path=/ domain=. HttpOnly Set-Cookie: AEC=AVQQ_LCUA9Yq67FEAgNtMJs9LdKfaRbLx_iMk99w5qmdIaHRhFPYkxzPCw expires=Thu, 2 20:10:04 GMT path=/ domain=. Secure HttpOnly SameSite=lax Let’s use the –server-response option and redirect the contents of stderr and stdout streams to stderr.out and stdout.out files, respectively: $ wget -q -server-response -output-document header_with_content 2>stderr.out 1>stdout.out Set-Cookie: NID=511=fC52DE0Nqpm0zfbhAiW4qm6kdo7g圓dibVDFc6jos0QM32GcCFox_3VNLcgvSCaAeGHMp4LkqqvNda_nzO36w-NsjI4_ArdvfUnGuKIY6pgsTFPjIIb4L80X0m9ZU1a-zhSmObqwbEytIHaxMaP61L0qhJVRCgNpkCkfBubsEjQ expires=Sun, 0 20:01:40 GMT path=/ domain=. HttpOnlyĪdditionally, we can verify that wget didn’t send header information to stderr, by simply redirecting both streams to separate files and verifying their content: $ wget -q -save-headers -output-document header_with_content 2>stderr.out 1>stdout.outīy using the -s option with the test command, we can confidently say that the stderr.out file is empty with a file size of 0. Set-Cookie: AEC=AVQQ_LAeuGIhWDkqKiZiuP8N3P1Jz1x5Jkzoi0ckbpZotvhLRMeBQbD0F0I expires=Thu, 2 20:01:40 GMT path=/ domain=. Secure HttpOnly SameSite=lax P3P: CP="This is not a P3P policy! See g.co/p3phelp for more info." Let’s see this in action: $ wget -q -save-headers -output-document - HTTP/1.1 200 OKĬontent-Type: text/html charset=ISO-8859-1 In this scenario, wget redirects headers and document content to the same target file. In the following two sections, we’ll focus on how to output the headers to stdout.īy using the –save-headers option, we can ask wget to add headers before the actual document content while separating the two by inserting an empty line after the headers. Great! We’ve learned how to output the document to stdout. Next, let’s send the output to stdout: $ wget -q -output-document - Google Let’s see this in action by first redirecting the output to the content_from_google file: $ wget -q -output-document content_from_google $ ls -l content_from_google As a particular use case, if we use – as the file, it directs the content to stdout. However, we can use the –output-document ( -O) option to redirect the content to a file of our choice. The wget command outputs the document content in a separate file by default. Additionally, we’re not interested in the default diagnostic output of wget, so we’ll use the –quiet ( -q) option to suppress this noise. So, it’ll be sending the header information to stderr. Let’s keep this behavior in mind because wget interprets the response headers as part of diagnostic information. We can verify that wget sends the diagnostic information to stderr by redirecting the stderr to a different file and verifying its content: $ wget 2>stderr.dump ![]() However, in reality, it is sent to the stderr stream. Further, it may seem at first that diagnostic information is sent to the stdout. On the other hand, wget saved the document in a file named index.html. We can notice a lot of diagnostic information in the output, and the actual document content isn’t shown on the stdout. ![]() To understand the default output behavior of the wget command, let’s use it to download data from : $ wget
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