ascii:tldr:b8609
The ascii -t ${a} command is a shell command that utilizes the ascii program with a specific flag (-t) and an argument (${a}).
The ascii program is a utility tool that converts characters into their corresponding ASCII values. The -t flag is used to specify the mode of the operation, which in this case is to convert the given argument into ASCII values.
${a} is likely a variable placeholder that represents a value or string that will be passed as an argument to the ascii command. The actual value or string will be substituted in place of ${a} when the command is executed.
For example, if ${a} is set to "Hello", then executing ascii -t ${a} would convert each character of the string "Hello" into its corresponding ASCII value and display the result.
Note: The specific behavior of the ascii command, as well as the purpose and meaning of the ${a} variable, may vary depending on the specific shell environment and the programs available in that environment. It's always recommended to consult the documentation or specific context for accurate information.