diff options
Diffstat (limited to 'Doc/Zsh/params.yo')
| -rw-r--r-- | Doc/Zsh/params.yo | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/Doc/Zsh/params.yo b/Doc/Zsh/params.yo index dc28a45ae..b514eb072 100644 --- a/Doc/Zsh/params.yo +++ b/Doc/Zsh/params.yo @@ -654,10 +654,11 @@ Same as tt(#). ) vindex($) item(tt($) <S>)( -The process ID of this shell. Note that this indicates the original -shell started by invoking tt(zsh); all processes forked from the shells -without executing a new program, such as subshells started by -tt(LPAR())var(...)tt(RPAR()), substitute the same value. +The process ID of this shell, set when the shell initializes. Processes +forked from the shell without executing a new program, such as command +substitutions and commands grouped with tt(LPAR())var(...)tt(RPAR()), +are subshells that duplicate the current shell, and thus substitute the +same value for tt($$) as their parent shell. ) vindex(-) item(tt(-) <S>)( @@ -817,9 +818,9 @@ The operating system, as determined at compile time. ) vindex(PPID) item(tt(PPID) <S>)( -The process ID of the parent of the shell. As for tt($$), the -value indicates the parent of the original shell and does not -change in subshells. +The process ID of the parent of the shell, set when the shell initializes. +As with tt($$), the value does not change in subshells created as a +duplicate of the current shell. ) vindex(PWD) item(tt(PWD))( |