read not terminated with EOF/^D when -n or -N is used
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 -march=i686 -mtune=generic -O2 -pipe -DDEFAULT_PATH_VALUE='/usr/local/bin:/usr/bin:/ bin:/usr/local/sbin:/usr/sbin:/sbin' -DSTANDARD_UTILS_PATH='/usr/bin:/bin:/usr/sbin:/sbin' -DSYS_BASHRC='/etc/bash.bashrc' -DSYS_BASH_LOGOUT='/etc/bash.bash_logout' uname output: Linux arch 2.6.35-ARCH #1 SMP PREEMPT Tue Sep 21 11:00:23 UTC 2010 i686 Pentium III (Katmai) GenuineIntel GNU/Linux Machine Type: i686-pc-linux-gnu Bash Version: 4.1 Patch Level: 9 Release Status: release read <^D> -> the EOF terminates read and it exists with a false exist status. read -n4 <^D> -> the ^D is read by read and stored in REPLY. read does not terminate.
[[ and set -E vs trap ERR
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 -march=i686 -mtune=generic -O2 -pipe uname output: Linux arch 2.6.31-ARCH #1 SMP PREEMPT Fri Oct 23 11:12:58 CEST 2009 i686 Pentium III (Katmai) GenuineIntel GNU/Linux Machine Type: i686-pc-linux-gnu Bash Version: 4.0 Patch Level: 35 Release Status: release cat <<-EOF >test #!/bin/bash -e set -E trap 'echo >&2 "error"' ERR echo TEST1 if [ $(false) ] ; then echo 1 fi echo TEST2 if [[ $(false) ]] ; then echo 1 fi EOF Expected output: TEST1 TEST2 Actual output: TEST1 TEST2 error The [[ masks the fact that an 'if' is running - but only in regards to the trap. bash does not exit on this error but the trap is triggered. [ works fine. With set -E, the trap is inherited by command substitution, but the fact that the trap is suppressed is not. <\amethyst> but the manpage says the ERR trap is avoided under "the same conditions obeyed by the errexit option", so at least the documentation is in error if nothing else
Parameter Expansion: Case Modification: ${var~} not documented
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
Description:
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.
Fix:
More documentation.
Re: Parameter Expansion: Case Modification: ${var~} not documented
Would you mind sharing the rational behind having it undocumented?
On Tue, Aug 18, 2015 at 7:38 AM, Chet Ramey wrote:
> On 8/18/15 9:50 AM, Dan Douglas wrote:
>
> >> Description:
> >> 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.
> >>
> >> Fix:
> >> More documentation.
> >
> > I'm pretty sure that's intentional. The corresponding `declare -c` has
> never
> > been documented either.
>
> Correct; it's undocumented.
>
>
> --
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
> ``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, ITS, CWRUc...@case.edu
> http://cnswww.cns.cwru.edu/~chet/
>
unset array[0] doesn't delete the element
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
-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' -DNON_INTERACTIVE_LOGIN_SHELLS
-Wno-parentheses -Wno-format-security
uname output: Linux netbook 4.9.11-1-ARCH #1 SMP PREEMPT Sun Feb 19 14:09:53
UTC 2017 i686 GNU/Linux
Machine Type: i686-pc-linux-gnu
Bash Version: 4.4
Patch Level: 12
Release Status: release
Description:
`unset` is broken
Repeat-By:
$ arr=(1 2 3); unset arr[-1]; echo "${arr[@]}"
1 2 3
Re: unset array[0] doesn't delete the element
Bug report being withdrawn. I had nullglob set so unset wasn't being
invoked properly.
On Sat, Mar 4, 2017 at 9:10 PM, Isaac Good wrote:
> 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
> -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' -DNON_INTERACTIVE_LOGIN_SHELLS
> -Wno-parentheses -Wno-format-security
> uname output: Linux netbook 4.9.11-1-ARCH #1 SMP PREEMPT Sun Feb 19
> 14:09:53 UTC 2017 i686 GNU/Linux
> Machine Type: i686-pc-linux-gnu
>
> Bash Version: 4.4
> Patch Level: 12
> Release Status: release
>
> Description:
> `unset` is broken
>
> Repeat-By:
> $ arr=(1 2 3); unset arr[-1]; echo "${arr[@]}"
> 1 2 3
>
