Voir uniquement les headers et suivre les redirections
# curl -I -L https://google.fr HTTP/2 301 location: https://www.google.fr/ content-type: text/html; charset=UTF-8 date: Thu, 16 Apr 2020 15:02:43 GMT expires: Sat, 16 May 2020 15:02:43 GMT cache-control: public, max-age=2592000 server: gws content-length: 219 x-xss-protection: 0 x-frame-options: SAMEORIGIN alt-svc: quic=":443"; ma=2592000; v="46,43",h3-Q050=":443"; ma=2592000,h3-Q049=":443"; ma=2592000,h3-Q048=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,h3-T050=":443"; ma=2592000 HTTP/2 200 date: Thu, 16 Apr 2020 15:02:43 GMT expires: -1 cache-control: private, max-age=0 content-type: text/html; charset=ISO-8859-1 p3p: CP="This is not a P3P policy! See g.co/p3phelp for more info." server: gws x-xss-protection: 0 x-frame-options: SAMEORIGIN set-cookie: 1P_JAR=2020-04-16-15; expires=Sat, 16-May-2020 15:02:43 GMT; path=/; domain=.google.fr; Secure set-cookie: NID=202=LPunTOssuEitx5yBl338FqBlsb11Enm76igNf7VXAONFw4pR6gyKH9vjHGK7mNsF0x8pzjcEB_lwqXV9G0N1T0NpjKpFw4fjfuo4jae-vDuxLmk9Gk7CsUABKfHCrOQokTya5XvpaCWsRdHkqP6DuwC2eRHFW15TESq84pjYOR0; expires=Fri, 16-Oct-2020 15:02:43 GMT; path=/; domain=.google.fr; HttpOnly alt-svc: quic=":443"; ma=2592000; v="46,43",h3-Q050=":443"; ma=2592000,h3-Q049=":443"; ma=2592000,h3-Q048=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,h3-T050=":443"; ma=2592000 accept-ranges: none vary: Accept-Encoding
https://forum.ubuntu-fr.org/viewtopic.php?id=1988093
#!/bin/bash gMonsite="http://demo.redmine.org/login" gPaheAAtteindre="http://demo.redmine.org/my/page" gLogin="xxxxxxxx" gPass="xxxxxxxx" gFichierCookie="/tmp/cookie" urlencode() { local length="${#1}" for (( i = 0; i < length; i++ )); do local c="${1:i:1}" case $c in [a-zA-Z0-9.~_-]) printf "$c" ;; *) printf '%%%02X' "'$c" esac done } urldecode() { local url_encoded="${1//+/ }" printf '%b' "${url_encoded//%/\\x}" } # 1/ On récupère un 1er cookie + authentification gTokenAuthentification=`curl "${gMonsite}" -c "${gFichierCookie}" -s |\ grep csrf-token |\ sed -e 's/.*content="//ig' -e 's/".*//ig'` gTokenAuthentification=$(urlencode "${gTokenAuthentification}") # 2/ On s'authentifie sur le site curl "${gMonsite}" \ -s \ -b "${gFichierCookie}" \ -c "${gFichierCookie}" \ --data "authenticity_token=${gTokenAuthentification}" \ --data "username=${gLogin}" \ --data "password=${gPass}" \ --data "login=Connexion" \ > /dev/null # 3/ On va à la page correspondante, en faisant un grep curl "${gPaheAAtteindre}" \ -s \ -b "${gFichierCookie}" |\ grep -c "129254"