How to run commands from Software Collections and Developer Toolset?

Solution Verified - Updated -

Issue

  • After installing python27 software collection, I am still getting the older version of python on system.

    # rpm -q python27-python
    python27-python-2.7.8-16.el6.x86_64
    # python --version
    Python 2.6.6
    
  • g++ compiler shows RHEL 7 compiler version even after having devtoolset-4-gcc-c++ installed.

    # g++ -v
    Using built-in specs.
    COLLECT_GCC=g++
    COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
    Target: x86_64-redhat-linux
    Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
    Thread model: posix
    gcc version 4.8.5 20150623 (Red Hat 4.8.5-4) (GCC) 
    
  • How can I make gcc installed from Developer Toolset as default compiler? Currently I have to use the absolute path /opt/rh/devtoolset-4/root/usr/bin/gcc

  • Installing PHP module named apc from php54-php-pecl-apc does not appear in the list of PHP modules.

    # php -m | grep apc
    #
    

Environment

  • Red Hat Enterprise Linux
    • 5.x
    • 6.x
    • 7.x
  • Red Hat Software Collections
  • Red Hat Developer Toolset

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