- name: basic
  input: ls | grep Makefile

- name: double pipe
  input: ls | grep Makefile | grep Makefile

- name: expand
  input: a="Makefile"; ls | grep "$a"

- name: multiple file
  input: ls -R src | grep src

- name: multiple file globing failed
  input: ls -R src | grep *.c

- name: multiple file globing
  input: ls -R src | grep .c

- name: pipe builtin pass
  input: echo "test|pass" | grep pass

- name: pipe builtin pass
  input: echo "test|pass" | grep failed

- name: 3 pipes
  input: cat Makefile | grep "@" | grep "echo"

- name: most used
  input: cat /root/.bash_history | cut -d' ' -f1 | sort | uniq -c | tr -s ' ' | cut -c 2- | sort -nr | head

- name: no builtins
  input: ls | grep -E "*.c"

- name: mutltiple no builtins
  input: ls | grep "s" | grep "bui"