Thanks Jamie. My ubuntu-core was out of date, but updating doesn't change the symlinks which my snap'd app sees:
michael@dev-xenial2:~/dev/todo.txt⟫ snap list Name Version Developer hello-world 6.0 canonical todo 2.1 ubuntu-core 16.04.0-24 canonical michael@dev-xenial2:~/dev/todo.txt⟫ sudo snap refresh ubuntu-core 64.64 MB / 64.64 MB [============================================================================================] 100.00 % 26.19 MB/s michael@dev-xenial2:~/dev/todo.txt⟫ snap list Name Version Developer hello-world 6.0 canonical todo 2.1 ubuntu-core 16.04+20160419.20-55 canonical michael@dev-xenial2:~/dev/todo.txt⟫ rm -rf parts/testawk && sudo snap remove todo && snapcraft && sudo snap install todo_2.1_amd64. snap [-] Remove snap "todo" from the system ... Snapped todo_2.1_amd64.snap [/] Setup snap "todo" security profiles michael@dev-xenial2:~/dev/todo.txt⟫ todo.testawk ls: cannot access '/usr/bin/gawk': No such file or directory lrwxrwxrwx 1 root root 21 Apr 19 20:52 /usr/bin/awk -> /etc/alternatives/awk -rwxr-xr-x 1 root root 117768 Mar 24 2014 /usr/bin/mawk lrwxrwxrwx 1 root root 13 Apr 12 14:18 /etc/alternatives/awk -> /usr/bin/gawk /snap/todo/100001/testawk.sh: line 5: /usr/bin/awk: No such file or directory /snap/todo/100001/testawk.sh: line 6: /etc/alternatives/awk: No such file or directory michael@dev-xenial2:~/dev/todo.txt⟫ cat /snap/todo/100001/testawk.sh #! /bin/bash ls -l /usr/bin/{,g,m}awk ls -l /etc/alternatives/awk /usr/bin/awk -h /etc/alternatives/awk -h michael@dev-xenial2:~/dev/todo.txt⟫ uname -a Linux dev-xenial2 4.4.0-18-generic #34-Ubuntu SMP Wed Apr 6 14:01:02 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux This is running on a (canonistack) xenial instance . -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1580018 Title: ubuntu-core image missing awk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1580018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs