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-rw-r--r--bin/sh/tests/parser/ps1-expand3.08
1 files changed, 8 insertions, 0 deletions
diff --git a/bin/sh/tests/parser/ps1-expand3.0 b/bin/sh/tests/parser/ps1-expand3.0
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index 000000000000..0b6270c300ff
--- /dev/null
+++ b/bin/sh/tests/parser/ps1-expand3.0
@@ -0,0 +1,8 @@
+# Test special parameter $$ (PID) in PS1
+output=$(PS1='pid:$$:' ENV=/dev/null ${SH} +m -i </dev/null 2>&1)
+# Check that output contains "pid:" followed by a number (not literal $$)
+case $output in
+*pid:\$\$:*) echo "PID not expanded, got literal \$\$"; exit 1 ;;
+*pid:[0-9]*) exit 0 ;;
+*) echo "Expected PID after 'pid:' in output"; exit 1 ;;
+esac