[PATCH V2 01/26] tools/perf/tests: Fix shellcheck warnings for trace+probe_vfs_getname.sh

[Athira Rajeev]

From: Akanksha J N <akank...@linux.ibm.com>

Running shellcheck -S on probe_vfs_getname.sh, throws below warnings:

Before fix:

$ shellcheck -S warning trace+probe_vfs_getname.sh

        In trace+probe_vfs_getname.sh line 13:
        . $(dirname $0)/lib/probe.sh
          ^-----------^ SC2046 (warning): Quote this to prevent word splitting.

        In trace+probe_vfs_getname.sh line 18:
        . $(dirname $0)/lib/probe_vfs_getname.sh
          ^-----------^ SC2046 (warning): Quote this to prevent word splitting.

        In trace+probe_vfs_getname.sh line 21:
                evts=$(echo $(perf list syscalls:sys_enter_open* 2>/dev/null | 
grep -E 'open(at)? ' | sed -r 's/.*sys_enter_([a-z]+) +\[.*$/\1/') | sed 's/ 
/,/')
                            ^-- SC2046 (warning): Quote this to prevent word 
splitting.

Fix the shellcheck warnings by adding quotes to prevent word splitting.

Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kj...@linux.ibm.com>
Signed-off-by: Akanksha J N <akank...@linux.ibm.com>
---
 tools/perf/tests/shell/trace+probe_vfs_getname.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/tests/shell/trace+probe_vfs_getname.sh 
b/tools/perf/tests/shell/trace+probe_vfs_getname.sh
index 0a4bac3dd77e..db2ff141f703 100755
--- a/tools/perf/tests/shell/trace+probe_vfs_getname.sh
+++ b/tools/perf/tests/shell/trace+probe_vfs_getname.sh
@@ -10,15 +10,15 @@
 # SPDX-License-Identifier: GPL-2.0
 # Arnaldo Carvalho de Melo <a...@kernel.org>, 2017
 
-. $(dirname $0)/lib/probe.sh
+. "$(dirname $0)"/lib/probe.sh
 
 skip_if_no_perf_probe || exit 2
 skip_if_no_perf_trace || exit 2
 
-. $(dirname $0)/lib/probe_vfs_getname.sh
+. "$(dirname $0)"/lib/probe_vfs_getname.sh
 
 trace_open_vfs_getname() {
-       evts=$(echo $(perf list syscalls:sys_enter_open* 2>/dev/null | grep -E 
'open(at)? ' | sed -r 's/.*sys_enter_([a-z]+) +\[.*$/\1/') | sed 's/ /,/')
+       evts="$(echo "$(perf list syscalls:sys_enter_open* 2>/dev/null | grep 
-E 'open(at)? ' | sed -r 's/.*sys_enter_([a-z]+) +\[.*$/\1/')" | sed 
':a;N;s:\n:,:g')"
        perf trace -e $evts touch $file 2>&1 | \
        grep -E " +[0-9]+\.[0-9]+ +\( +[0-9]+\.[0-9]+ ms\): +touch\/[0-9]+ 
open(at)?\((dfd: +CWD, +)?filename: +${file}, +flags: 
CREAT\|NOCTTY\|NONBLOCK\|WRONLY, +mode: +IRUGO\|IWUGO\) += +[0-9]+$"
 }
-- 
2.39.1