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@@ -0,0 +1,9 @@
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+# append to the history file, don't overwrite it
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+shopt -s histappend
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+
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+# update history before executing commands
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+PROMPT_COMMAND="history -a;$PROMPT_COMMAND"
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+
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+# check the window size after each command and, if necessary,
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+# update the values of LINES and COLUMNS.
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+shopt -s checkwinsize
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