unknown_error_bypass

2026-08-19 11:09:43 +04:00
parent 4368dd0f4f
commit ac308f9dad
5 changed files with 50 additions and 7 deletions
@@ -35,4 +35,29 @@ count=0
 ```bash
 count=0
 count=$((count+1))
-`
+```
+
+## properly grab $?
+
+> prefer plain `command` rather than `! command`
+> otherwise you will miss out the exit code
+
+### wrong if
+
+```bash
+  if ! command; then
+    local code=$?
+    >&2 echo $code # => 0
+  fi
+```
+
+### right if
+
+```bash
+  if command; then
+    : # useful for preserving $?
+  else
+    local code=$?
+    >&2 echo $code
+  fi
+```