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Parameter Expansion: Case Modification: ${var~} not documented

From: Isaac Good
Subject: Parameter Expansion: Case Modification: ${var~} not documented
Date: Mon, 17 Aug 2015 13:08:55 -0700

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc 
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' -DCONF_OSTYPE='linux-    gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu' -DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/  locale' -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib  -    D_FORTIFY_SOURCE=2 -march=i686 -mtune=generic -O2 -pipe -fstack-protector-strong --   param=ssp-buffer-size=4 -DDEFAULT_PATH_VALUE='/usr/local/sbin:/usr/local/bin:/usr/    bin' -DSTANDARD_UTILS_PATH='/usr/bin' -DSYS_BASHRC='/etc/bash.bashrc' -               DSYS_BASH_LOGOUT='/etc/bash.bash_logout'
uname output: Linux netbook 3.16.1-1-ARCH #1 SMP PREEMPT Thu Aug 14 07:48:39 CEST     2014 i686 GNU/Linux
Machine Type: i686-pc-linux-gnu

Bash Version: 4.3 
Patch Level: 39
Release Status: release

The man page fails to document the ${var~} and ${var~~} case inversion expansion.
It got the upper and lower, ie ${var^} and ${var,} but not invert.

More documentation.

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