What is the difference between the built in echo command and /bin/echo?
33687
Why is echo a shell built in command?
130385
How to make the say command echo a variable value in a script?
147055
zsh is in /usr/bin, but also in /bin, what is the difference?
83225
Difference between single and double square brackets in Bash
86391
Why are non-environment variables passed to the subshell invoqued by command substitution?
36299
How to echo shell commands as they are executed
117107
What is the difference between '.' and 'source' in shells?
74090
$_ vs !$. Last argument of the preceding command and output redirection
50931
What is the difference between #!/bin/sh and #!/bin/bash?
143032
What is the difference between /sbin/nologin and /bin/false?
105006
What is wrong with “echo $(stuff)” or “echo `stuff`”?
91024
Are there any options of bash with which it is invoked?
52133
Difference between /bin and /usr/bin
126609
What is the difference between running "bash script.sh" and "./script.sh"?
15213
How to echo an echo in php?
145513
Why does /bin/sh point to /bin/dash and not /bin/bash?
91449
Understanding Bash's Read-a-File Command Substitution