In the part of my script, I need to make ssh to a host and delete the elements of an array. In my current code for each element of the array I need to make ssh to host which takes time. I want to make ssh to the host at one time and then delete all elements of the array. How can I improve my below code from performance point of view?
for x in $Array
do
echo "Value of array are : $x"
ssh [email protected] "rm -rf $x"
done
Why the loop at all? Using * as subscript gives all elements of an array.
ssh [email protected] "rm -rf ${Array[*]}"
Note that either way (with or without loop) will break if file names contain whitespaces.
You must input the commands in a file on your local, then upload the file, and finally run the script. Here is how it goes:
echo > rmscript.sh
for x in $Array
do
echo "Value of array are : $x"
echo "rm -rf $x" >> rmscript.sh
done
#upload
scp rmscript.sh [email protected]:~
#run script
ssh [email protected] "sh ~/rmscript.sh"
