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-rw-r--r--Doc/Zsh/params.yo7
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/Zsh/params.yo b/Doc/Zsh/params.yo
index 933081b34..a4dd1a2ca 100644
--- a/Doc/Zsh/params.yo
+++ b/Doc/Zsh/params.yo
@@ -1265,6 +1265,12 @@ vindex(COLUMNS)
item(tt(COLUMNS) <S>)(
The number of columns for this terminal session.
Used for printing select lists and for the line editor.
+If the shell is non-interactive and a legal value is imported from the
+environment, it is preserved. Otherwise, the value is reset on start-up
+and in response to certain events such as the receipt of a tt(SIGWINCH)
+signal. Explicitly setting it to an illegal value such as tt(0) also
+resets it. (Unsetting the parameter does not have this effect; it
+simply `hides' the value that the shell is tracking internally.)
)
vindex(CORRECT_IGNORE)
item(tt(CORRECT_IGNORE))(
@@ -1471,6 +1477,7 @@ vindex(LINES)
item(tt(LINES) <S>)(
The number of lines for this terminal session.
Used for printing select lists and for the line editor.
+See tt(COLUMNS).
)
vindex(LISTMAX)
item(tt(LISTMAX))(