Some globstar patterns produce duplicate entries and a null filename
GNU bash, version 4.2.24(1)-release (i686-pc-linux-gnu) Take the following example, assumed to be run in an empty directory: $ mkdir a $ echo ** a $ echo **/** a a $ echo **/**/** a a a I would expect the result to be just 'a' in all cases. You also get back a null filename, as shown by $ for f in **/**/**; do echo "'$f'"; done '' 'a' 'a' 'a' /Ulf
Re: Some globstar patterns produce duplicate entries and a null filename
On Sun, Dec 2, 2012 at 4:58 PM, Roman Rakus wrote: > On 12/01/2012 04:41 PM, Ulf Magnusson wrote: >> >> GNU bash, version 4.2.24(1)-release (i686-pc-linux-gnu) >> >> Take the following example, assumed to be run in an empty directory: >> >> $ mkdir a >> $ echo ** >> a >> $ echo **/** >> a a >> $ echo **/**/** >> a a a >> >> I would expect the result to be just 'a' in all cases. >> >> You also get back a null filename, as shown by >> >> $ for f in **/**/**; do echo "'$f'"; done >> '' >> 'a' >> 'a' >> 'a' >> >> /Ulf >> > I can't reproduce it on my Fedora with bash 4.2.10 nor 4.2.39. Tried turn on > and off extglob shell option. > Can you please resend your report with `bashbug' script? Or at least say > which linux distribution you are using? > > RR > Ubuntu 12.04. My configuration is https://github.com/ulfalizer/Configuration-files/blob/master/bash, which I 'source' from the standard Ubuntu ~/.bash. I noticed the bug while implementing the _super_glob function. bashbug information: 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../bash -I../bash/include -I../bash/lib -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall uname output: Linux Huvuddator 3.2.0-32-generic-pae #51-Ubuntu SMP Wed Sep 26 21:54:23 UTC 2012 i686 i686 i386 GNU/Linux Machine Type: i686-pc-linux-gnu /Ulf
Re: Some globstar patterns produce duplicate entries and a null filename
On Sun, Dec 2, 2012 at 5:40 PM, Ulf Magnusson wrote: > On Sun, Dec 2, 2012 at 4:58 PM, Roman Rakus wrote: >> On 12/01/2012 04:41 PM, Ulf Magnusson wrote: >>> >>> GNU bash, version 4.2.24(1)-release (i686-pc-linux-gnu) >>> >>> Take the following example, assumed to be run in an empty directory: >>> >>> $ mkdir a >>> $ echo ** >>> a >>> $ echo **/** >>> a a >>> $ echo **/**/** >>> a a a >>> >>> I would expect the result to be just 'a' in all cases. >>> >>> You also get back a null filename, as shown by >>> >>> $ for f in **/**/**; do echo "'$f'"; done >>> '' >>> 'a' >>> 'a' >>> 'a' >>> >>> /Ulf >>> >> I can't reproduce it on my Fedora with bash 4.2.10 nor 4.2.39. Tried turn on >> and off extglob shell option. >> Can you please resend your report with `bashbug' script? Or at least say >> which linux distribution you are using? >> >> RR >> > > Ubuntu 12.04. My configuration is > https://github.com/ulfalizer/Configuration-files/blob/master/bash, > which I 'source' from the standard Ubuntu ~/.bash. I noticed the bug > while implementing the _super_glob function. > > bashbug information: > > 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../bash -I../bash/include > -I../bash/lib -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector > --param=ssp-buffer-size=4 -Wformat -Wformat-security > -Werror=format-security -Wall > uname output: Linux Huvuddator 3.2.0-32-generic-pae #51-Ubuntu SMP Wed > Sep 26 21:54:23 UTC 2012 i686 i686 i386 GNU/Linux > Machine Type: i686-pc-linux-gnu > > /Ulf Left out some bashbug information: Bash Version: 4.2 Patch Level: 24 Release Status: release /Ulf
Re: Some globstar patterns produce duplicate entries and a null filename
On Sun, Dec 2, 2012 at 5:42 PM, Ulf Magnusson wrote: > On Sun, Dec 2, 2012 at 5:40 PM, Ulf Magnusson wrote: >> On Sun, Dec 2, 2012 at 4:58 PM, Roman Rakus wrote: >>> On 12/01/2012 04:41 PM, Ulf Magnusson wrote: >>>> >>>> GNU bash, version 4.2.24(1)-release (i686-pc-linux-gnu) >>>> >>>> Take the following example, assumed to be run in an empty directory: >>>> >>>> $ mkdir a >>>> $ echo ** >>>> a >>>> $ echo **/** >>>> a a >>>> $ echo **/**/** >>>> a a a >>>> >>>> I would expect the result to be just 'a' in all cases. >>>> >>>> You also get back a null filename, as shown by >>>> >>>> $ for f in **/**/**; do echo "'$f'"; done >>>> '' >>>> 'a' >>>> 'a' >>>> 'a' >>>> >>>> /Ulf >>>> >>> I can't reproduce it on my Fedora with bash 4.2.10 nor 4.2.39. Tried turn on >>> and off extglob shell option. >>> Can you please resend your report with `bashbug' script? Or at least say >>> which linux distribution you are using? >>> >>> RR >>> >> >> Ubuntu 12.04. My configuration is >> https://github.com/ulfalizer/Configuration-files/blob/master/bash, >> which I 'source' from the standard Ubuntu ~/.bash. I noticed the bug >> while implementing the _super_glob function. >> >> bashbug information: >> >> 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../bash -I../bash/include >> -I../bash/lib -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector >> --param=ssp-buffer-size=4 -Wformat -Wformat-security >> -Werror=format-security -Wall >> uname output: Linux Huvuddator 3.2.0-32-generic-pae #51-Ubuntu SMP Wed >> Sep 26 21:54:23 UTC 2012 i686 i686 i386 GNU/Linux >> Machine Type: i686-pc-linux-gnu >> >> /Ulf > > Left out some bashbug information: > > Bash Version: 4.2 > Patch Level: 24 > Release Status: release > > /Ulf Oh - you need to enable 'globstar', not 'extglob'. :) /Ulf
Document argument reuse behavior in 'help printf'?
Only the manual mentions that "the format is reused as necessary to consume all of the arguments"; it would be nice if this was in 'help printf' too. /Ulf
