tee:tldr:a8aa3
tee: Append to the given files, do not overwrite.
$ echo "example" | tee -a ${filename}
try on your machine
The command "echo" is commonly used in shell scripting to print certain text or variables to the console. In this case, the text being printed is "example".
The "|" (pipe) symbol is used to redirect the output of a command to be used as input for another command. It allows the output of the "echo" command to be passed as input to the "tee" command.
The "tee" command is used to read from standard input and write to both standard output and files. It takes the input from the previous command (in this case, "example" from the "echo" command) and appends it to a specified file, denoted by the variable "${filename}".
The "-a" flag with the "tee" command stands for "append", meaning it will append the output to the file rather than overwriting it.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.