Re: bash: which: command not found? + (E: Unable to locate package which? ...)

On Fri 8 Jul 2022 at 12:03, Albretch Mueller wrote:

Actually, I just noticed I couldn't run "cat" as regular user but I
could as root how could that form a "multiversing" be -technically-
happening (other than having forces actively messing with your work)?

This could happen if cat has mode 744 (executable only

by owner) or some kind of SElinux magic.

export _GRAALVM_HOME=.../graalvm-ce-java17-22.1.0
export PATH=${PATH}:${_GRAALVM_HOME}/bin
which javac
which java
$

bash: which: command not found

which has been deprecated. Use command -v. If you need which -a, you are

out of luck... Please find an attached which if you are interested.

# apt-get install which
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package which
#

# cat /etc/apt/sources.list
# deb cdrom:[Official Debian GNU/Linux Live 11.2.0 lxde
2021-12-18T12:41]/ bullseye main
#deb cdrom:[Official Debian GNU/Linux Live 11.2.0 lxde
2021-12-18T12:41]/ bullseye main

deb http://security.debian.org/debian-security bullseye-security main
deb-src http://security.debian.org/debian-security bullseye-security main

# bullseye-updates, to get updates before a point release is made;
# see https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_updates_and_backports
# A network mirror was not selected during install. The following entries
# are provided as examples, but you should amend them as appropriate
# for your mirror of choice.
#
deb http://deb.debian.org/debian/ bullseye-updates main
deb-src http://deb.debian.org/debian/ bullseye-updates main

deb http://deb.debian.org/debian bullseye main contrib non-free
deb-src http://deb.debian.org/debian bullseye main contrib non-free

deb http://deb.debian.org/debian-security/ bullseye-security main
contrib non-free
deb-src http://deb.debian.org/debian-security/ bullseye-security main
contrib non-free

deb http://deb.debian.org/debian bullseye-updates main contrib non-free
deb-src http://deb.debian.org/debian bullseye-updates main contrib non-free

#This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.

# which bash
/usr/bin/bash
#

Some shells have which baked in. For how long?

Best,

Loïc