Strange terminal "header"

[Yesyesloud]

This is appearing in the very beginning of my terminal emulators and in plain terminal sessions, for no apparent reason:

free: invalid option -- 'o'

Usage:
free [options]

Options:
-b, --bytes        show output in bytes
-k, --kilo          show output in kilobytes
-m, --mega          show output in megabytes
-g, --giga          show output in gigabytes
    --tera          show output in terabytes
-h, --human        show human-readable output
    --si            use powers of 1000 not 1024
-l, --lohi          show detailed low and high memory statistics
-t, --total        show total for RAM + swap
-s N, --seconds N  repeat printing every N seconds
-c N, --count N    repeat printing N times, then exit
-w, --wide          wide output

    --help    display this help and exit
-V, --version  output version information and exit

For more details see free(1).

Does anyone know why exactly? Annoying stuff.

Thanks.

 

[ryanvade]

Bash profile? Bashrc ? Global Bash profile/Bashrc ?