Why do shells implement their own "echo" commands internally?
33687
Why is echo a shell built in command?
36299
How to echo shell commands as they are executed
48276
Understanding how inputs are sent to pipes in Bash
130753
Why does this echo call overwrite existing text?
138043
What are the specific naming conventions for variables in bash shell scripting language?
14304
Why does bash output data instead of executing, when a script is piped?
4759
Why is printf better than echo?
54313
What is $() in a command?
95362
How can I enable shell-escape?
26095
Write18: capturing shell (script) output as command/variable?
83883
Can bash write to its own input stream?
40020
Why do `jobs` and `dirs` run in command subsitution, process substitution, pipeline, and background jobs output the same as in original shell?
50022
Different ways to execute a shell script
35334
What is the general syntax of a Unix shell command?
128874
Breaking down shell scripts; What happens under the hood?
85139
Is it possible to strace the builtin commands to Bash?
101999
What's is the difference between ">" and ">>" in shell command?