perf test: Fix shellcheck issues in the record test

Basically there are 3 issues:

 1. quote shell expansion
 2. do not use egrep
 3. use upper case letters for signal names
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221020172643.3458767-3-namhyung@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/shell/record.sh

@@ -8,16 +8,16 @@ err=0
 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
 
 cleanup() {
-  rm -f ${perfdata}
-  rm -f ${perfdata}.old
-  trap - exit term int
+  rm -f "${perfdata}"
+  rm -f "${perfdata}".old
+  trap - EXIT TERM INT
 }
 
 trap_cleanup() {
   cleanup
   exit 1
 }
-trap trap_cleanup exit term int
+trap trap_cleanup EXIT TERM INT
 
 test_per_thread() {
   echo "Basic --per-thread mode test"
@@ -30,13 +30,13 @@ test_per_thread() {
     fi
     return
   fi
-  if ! perf record --per-thread -o ${perfdata} true 2> /dev/null
+  if ! perf record --per-thread -o "${perfdata}" true 2> /dev/null
   then
     echo "Per-thread record [Failed record]"
     err=1
     return
   fi
-  if ! perf report -i ${perfdata} -q | egrep -q true
+  if ! perf report -i "${perfdata}" -q | grep -q true
   then
     echo "Per-thread record [Failed missing output]"
     err=1
@@ -47,7 +47,7 @@ test_per_thread() {
 
 test_register_capture() {
   echo "Register capture test"
-  if ! perf list | egrep -q 'br_inst_retired.near_call'
+  if ! perf list | grep -q 'br_inst_retired.near_call'
   then
     echo "Register capture test [Skipped missing event]"
     if [ $err -ne 1 ]
@@ -56,7 +56,7 @@ test_register_capture() {
     fi
     return
   fi
-  if ! perf record --intr-regs=\? 2>&1 | egrep -q 'available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11 R12 R13 R14 R15'
+  if ! perf record --intr-regs=\? 2>&1 | grep -q 'available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11 R12 R13 R14 R15'
   then
     echo "Register capture test [Skipped missing registers]"
     return
@@ -64,7 +64,7 @@ test_register_capture() {
   if ! perf record -o - --intr-regs=di,r8,dx,cx -e br_inst_retired.near_call:p \
     -c 1000 --per-thread true 2> /dev/null \
     | perf script -F ip,sym,iregs -i - 2> /dev/null \
-    | egrep -q "DI:"
+    | grep -q "DI:"
   then
     echo "Register capture test [Failed missing output]"
     err=1