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--- docu:chseet:ofsec:sec:otp_comand_line [2020/05/21 10:18] – created admin
+++ docu:chseet:ofsec:sec:otp_comand_line [2020/08/17 09:34] (current) – admin
@@ Line 2: / Line 2: @@
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+It is surely really handy to be able to **generate TOTP codes** on the command line,
+as it can be used either as a **secure client**, or by integrating it on a **custom service**.
+Instructions for **Debian-based** Linux's, (adapt it to your needs)
+<code bash>
+apt-get install oathtool
+# save the secrets somewhere
+echo 'SECRET_FOR_AMAZON' > ~/.otp/amazon
+echo 'SECRET_FOR_PROTONMAIL' > ~/.otp/proton
+# create the current time code by file output
+cat ~/.otp/amazon | xargs oathtool --totp --base32
+cat ~/.otp/proton | xargs oathtool --totp --base32
+# (optionally), you can copy directly to clipboard without cat'ing it
+# by using the xclip tool (apt-get install xclip)
+cat ~/.otp/proton | xargs oathtool --totp --base32 | xclip -rmlastnl -i /dev/stdin
+</code>
+\\
+**Have a QR code on the screen** and don't know **how to copy** the secret value **manually**??
+unless the **service gives you the ability** to copy the secret directly, you **won't be able** to do so.
+Follow the **other guide** i made about [[docu:csheet:dtproc:images:qr_code_parsing|QR code image handling]] so you can **save the secret for creating codes** on the command line later.

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