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[RESENT,3/5] tst_net.sh: Drop 'sh -c' use from ssh in tst_rhost_run

Message ID 20200622045649.5063-4-pvorel@suse.cz
State Changes Requested
Headers show
Series tst_net.sh: Remove rsh, update docs add debug & test | expand

Commit Message

Petr Vorel June 22, 2020, 4:56 a.m. UTC
This simplifies the command and allows to use double quotes in command
parameter for ssh, as it removes single nested quotes of command
parameter (thus fixes like c1a2d53f6 "network/nfs_lib.sh: Use double
quotes for grep pattern" are not needed any more).

NOTE: 'sh -c' is still required for netns based testing, but does not
use nested quotes. Now both variants use only double quotes.

Suggested-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
 testcases/lib/tst_net.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/testcases/lib/tst_net.sh b/testcases/lib/tst_net.sh
index 1b96b3bf4..2ed570a6b 100644
--- a/testcases/lib/tst_net.sh
+++ b/testcases/lib/tst_net.sh
@@ -167,12 +167,12 @@  tst_rhost_run()
 	if [ -n "${TST_USE_NETNS:-}" ]; then
-		output=`$LTP_NETNS sh -c \
-			"$pre_cmd $cmd $post_cmd" $out 2>&1 || echo 'RTERR'`
+		output=$($LTP_NETNS sh -c \
+			"$pre_cmd $cmd $post_cmd" $out 2>&1 || echo 'RTERR')
 		tst_require_cmds ssh
-		output=`ssh -n -q $user@$RHOST "sh -c \
-			'$pre_cmd $cmd $post_cmd'" $out 2>&1 || echo 'RTERR'`
+		output=$(ssh -n -q $user@$RHOST \
+			"$pre_cmd $cmd $post_cmd" $out 2>&1 || echo 'RTERR')
 	echo "$output" | grep -q 'RTERR$' && ret=1
 	if [ $ret -eq 1 ]; then