Sed Delete Last Character

How do I delete a last character from input line under UNIX / Linux using sed tool? My sample scientific input data line is as follows and I’d like to get rid of last + character only:

379100.46+521870.11+363838.75+382869.59+

How do I used sed to delete last + character?

Use it as follows:
echo "379100.46+521870.11+363838.75+382869.59+" | sed '$s/.$//'
If you would like to calculate final result, enter:
echo "379100.46+521870.11+363838.75+382869.59+" | sed '$s/.$//' | bc -l

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.