On 28/04/24 20:01, Chet Ramey wrote:
On 4/27/24 6:23 PM, Gioele Barabucci wrote:
bash 5.0 and 5.2 do not set $BASH to the right value when bash is used
as the login shell:
$ apt install bash-static
$ getent passwd $USER | cut -d: -f 7
/bin/bash
$ su $USER -s /bin/bash-static -c 'echo $BASH; readlink
/proc/$$/exe; true'
/usr/bin/bash-static
/usr/bin/bash-static
$ su -l $USER -s /bin/bash-static -c 'echo $BASH; readlink
/proc/$$/exe; true'
/bin/bash
/usr/bin/bash-static
(bash-static is not a link to bash)
What does `su' pass to bash in argv[0]?
$ su $USER -s /bin/bash-static -c 'echo $BASH; readlink
/proc/$$/exe; head -1z /proc/$$/cmdline; echo'
/usr/bin/bash-static
/usr/bin/bash-static
bash-static
$ su -l $USER -s /bin/bash-static -c 'echo $BASH; readlink
/proc/$$/exe; head -1z /proc/$$/cmdline; echo'
/bin/bash
/usr/bin/bash-static
-bash-static
Regards,
--
Gioele Barabucci
