Redirections Tests

[mmitkovic]

Redirections tests

• echo a b c >>f ✅
• echo a >>f b ✅
• echo >>f a b ✅
• <in.txt cat >>out.txt tail ✅
• echo <in.txt cat >>out.txt ✅
• echo a >f1 b >>f2 c 2>>errs ❓
• >f echo a 🔴
• <in.txt grep "foo" → prints matches from in.txt 🔴
• >f1 echo a >>f2 b → f1 has a, f2 has b appended ⇒ look for the last redirection on right or left and connect it to the cmd.
• >f1 >f2 >f3 echo a ”a” should always got in the last (f3). 🔴
• <in tr a-z A-Z >out
• echo >>f "some text” ✅
• echo > f1 "a b" >> f2 'c d' ✅
• echo >> 🔴 (wrong exit code)
• > 🔴 (wrong exit code)
• cat <<EOF >out … lines … EOF ✅
• cat <<'EOF' >out … $USER should NOT expand … EOF
• > output.txt ✅
• echo bonjour > bj.txt ✅
• cat < bj.txt ✅
• cat < bj.txt > test.txt ✅
• cat < test.txt >> new.txt ✅
• cat < test.txt ✅
• cat < new.txt ✅
• echo "This is a test" > test.txt ✅
• cat < test.txt < test.txt < test.txt < test.txt < test.txt < test.txt ✅
• cat < test.txt < test.txt < test.txt < test.txt < new.txt ✅
• cat < test.txt > a1 > a2 >> a3 > a4 >> a5 > a6 ✅
• not_cmd bonjour > salut ✅
• cat < > (Works but with wrong error message)
• cat < < (Works but with wrong error message)
• cat > >