Shell Programming and Scripting

cat file
-     -     -   -  /abcd/1234

#!/usr/bin/bash
s=eval awk '{ print $1 }' file
t=eval awk '{ print $2 }' file
p=eval awk '{ print $3 }' file

echo $s
echo $t
echo $p
## want to compare the values to "-"

if eval [$s=$t=$p=="-"];
then echo "nfs issue"
else
echo "no"
fi

#!/usr/bin/bash
s=$(awk '{ print $1 }' file)
t=$(awk '{ print $2 }' file)
p=$(awk '{ print $3 }' file)

echo $s
echo $t
echo $p
## want to compare the values to "-"

if [ "$s$t$p" = "---" ];
then
  echo "nfs issue"
else
  echo "no"
fi

awk '$1 $2 $3 == "---" { exit 1 }' file

if [ $? -ne 0 ]; then
  echo "nfs issue"
else
  echo "no"
fi

grep -q '^\(- *\)\{4\}' infile && echo nfs issue

sh -x stale1.sh
+ awk '$1 $2 $3 == "---" { exit 1 }' file
+ '[' 1 -ne 0 ']'
+ echo 'nfs issue'
nfs issue

sh -x stale2.sh
++ awk '{ print $1 }' file
+ s=-
++ awk '{ print $2 }' file
+ t=-
++ awk '{ print $3 }' file
+ p=-
+ echo -
-
+ echo -
-
+ echo -
-
+ '[' --- = --- ']'
+ echo 'nfs issue'
nfs issue

grep -q '^\(- *\)\{4\}' file && echo nfs issue
nfs issue