nmon上的基本bash shell脚本

Question

I'm having a problem trying to run nmon using my own script where nmon is deployed in the linux environment.

Based on this script, I am required to execute command "test.sh 2 5", with variables represented by value 2 and 5

#!/bin/bash
#sh test.sh variable1 variable2
./nmon -f -s$1 -c $2
total=$(( $1 * $2 ))
echo "------------------------------------------------"
echo -e "Providing $2 snapshots with interval of $1s"
echo -e "Saving into $HOSTNAME. Completing in $total seconds\n\n"

However, I am receiving the following output:

[osmusr@bssosmappv4001 ~]$ sh nmonscript2.sh 2 4
------------------------------------------------
Providing 4 snapshots with interval of 2s
 secondsnto bssosmappv4001. Completing in 8

May I know which part did I missed out? Why is it not displaying the output correctly?

Answer 1

total has a carriage return ( 0x0D / \\r / ^M ) after it. Most likely the script has windows line endings ( \\r\\n ), and the \\r is getting tacked onto the total assignment. Run the file through dos2unix .