![Forrest logo](/images/logo.png)
datamash:tldr:c136a
The command echo -e '1.0\n2.5\n3.1\n4.3\n5.6\n5.7' | tr '.' ',' | datamash mean 1
performs the following actions:
-
echo -e '1.0\n2.5\n3.1\n4.3\n5.6\n5.7'
: This prints the given string'1.0\n2.5\n3.1\n4.3\n5.6\n5.7'
to the command line. The-e
option enables the interpretation of escape sequences, so\n
creates line breaks. -
|
: The pipe symbol|
is used to redirect the output of the previous command (echo
) to the input of the next command (tr
). -
tr '.' ','
: This command uses thetr
command to replace any occurrence of.
with,
. It is used to convert the decimal point from.
to,
. -
|
: Another pipe symbol is used to redirect the output of the previous command (tr
) to the input of the next command (datamash
). -
datamash mean 1
: This command usesdatamash
to calculate the mean (average) of the numbers provided in the input.mean
is the function to calculate the mean, and1
specifies that the calculation should be performed on the first column of the input.
Overall, this command takes a string of numbers separated by newlines, replaces the decimal points with commas, and then calculates the mean of the numbers in the first column.