Base64 is an encoding system that allows the translation of binary + data into ASCII text strings, basing upon 64 different ASCII characters. +Each Base64 digit represents exactly 6 bits of data so, for example, +six bytes (a total of 48 bits) can be represented by eight Base64 digits.
+ +By writing the command base64 you can encode and decode Base64 data.
+The command follows the structure:
+Device-name:Current-position username$ base64 [flag] [-i input item] [-o output item] ++ +
In this case, flag such as -i and -o are fundamental
+ to define respectevely from which file take the stream and into which to store
+ the result. Naturally, the path and the name of the files must be specified.
+Device-name:Current-position username$ base64 -i path/input.file -o path/output.file ++ +
Using the -b (which stands for break) flag followed by a
+ number, line breaks are added every specified "number" characters.
+Device-name:Current-position username$ base64 -b number path/input.file path/output.file ++ +
By leaving the number field empty, an unbroken stream will be generated.
+ +Using the -D flag (which stands for decode), you obtain as
+ output the input message decoded into binary data.
+Device-name:Current-position username$ base64 -D [-i input item] [-o output item] ++ +
Using the -h (which stands for help) a short paragraph
+in which are listed the flags with the respective paragraph will be displayed.
+Device-name:Current-position username$ base64 -h +diff --git a/site/pages/cmd/interm/sync.html b/site/pages/cmd/interm/sync.html new file mode 100644 index 0000000..e0073fd --- /dev/null +++ b/site/pages/cmd/interm/sync.html @@ -0,0 +1,19 @@ +--- +layout: page +category-title: Intermediate commands +category-page: intermediate +tags: sync disk write completion +author: Gianmarco De Vita +title: sync +previous-page: pages/cmd/interm/ +next-page: pages/cmd/interm/ +--- +
The sync utility force the completion of pending disk writes.
+Device-name:Current-position username$ sync ++ +
This command can be used to verify that there are no pending disk writes, +so that all the operations are completed, before the processor is stopped by other +commands.