Search code examples
bashsoftware-collections

'scl enable' not setting PATH with bash


I'm trying to use software collections on CentOS 6.8 server, but it won't set the environment variable PATH corectly if the command passed is "bash", but "tcsh" works... (however we don't use tcsh on this machine)

Example:

$ scl --list
devtoolset-4
python27
rh-java-common
rh-perl524
rh-python35
$ which python
/usr/bin/python
$ python --version
Python 2.6.6
$ scl enable python27 bash
$ which python
/usr/bin/python
$ python --version
Python 2.6.6
$ cat /opt/rh/python27/enable 
export PATH=/opt/rh/python27/root/usr/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=/opt/rh/python27/root/usr/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
export MANPATH=/opt/rh/python27/root/usr/share/man:${MANPATH}
# For systemtap
export XDG_DATA_DIRS=/opt/rh/python27/root/usr/share:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}
# For pkg-config
export PKG_CONFIG_PATH=/opt/rh/python27/root/usr/lib64/pkgconfig${PKG_CONFIG_PATH:+:${PKG_CONFIG_PATH}}
$ echo $PATH
/usr/share/gridengine/bin/lx26-amd64:/usr/lib64/qt-3.3/bin:/usr/NX/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/opt/bin:/opt/maker/bin:/opt/tools/:/opt/tools/amos-3.1.0:/opt/mpich-install/bin:/opt/pssc/bin:/opt/torque/bin:/opt/torque/sbin
$ echo $LD_LIBRARY_PATH 
/opt/rh/python27/root/usr/lib64
$ echo $MANPATH
/opt/rh/python27/root/usr/share/man::/opt/mpich-install/share/man:/opt/mpich-install/share/man

So why is MANPATH and LD_LIBRARY_PATH being set properly but not PATH? If i use tcsh it works as expected:

$ scl enable python27 tcsh
$ which python
/opt/rh/python27/root/usr/bin/python
$ python --version
Python 2.7.8

Solution

  • Thank you Dominic you were on to something. I originally checked ~/.bash* files as well as /etc/bash* and /etc/profile but after your comment, I found several scripts in /etc/profile.d/ that we being executed, and one of them set the PATH explicitly without appending. I added $PATH back in there and now scl enable is working as expected!