Názor k článku
Užitečné drobnosti z příkazové řádky

Ak je riadok prilis dlhy a ho rozdelime, na dalsom riadku sa nemusi vzdy zobrazit ‚>‘
Je to premenna pre bash (vid man bash)
PS1 The value of this parameter is expanded (see PROMPTING below) and used as the primary prompt string. The default value
is ``\s-\v\$ ''.
PS2 The value of this parameter is expanded as with PS1 and used as the secondary prompt string. The default is ``> ''.
PS3 The value of this parameter is used as the prompt for the select command (see SHELL GRAMMAR above).
PS4 The value of this parameter is expanded as with PS1 and the value is printed before each command bash displays during an
execution trace. The first character of PS4 is replicated multiple times, as necessary, to indicate multiple levels of
indirection. The default is ``+ ''.