Created by [CecilWesterhof]. I want to display my CPU usage. For this I need information (the first line) from /proc/stat. Here a proc that fetches this line, puts it in a easy to use dict, which also has a total added and returns it. ====== proc getStatCPU {} { set infoLst [lrange [getLineAsList /proc/stat] 1 7] lassign $infoLst user nice system idle iowait irq softirq dict set statCPU user $user dict set statCPU nice $nice dict set statCPU system $system dict set statCPU idle $idle dict set statCPU iowait $iowait dict set statCPU irq $irq dict set statCPU softirq $softirq dict set statCPU total [::tcl::mathop::+ {*}$infoLst] return $statCPU } ====== For getLineAsList see [Get a Certain Line From a File]. I will also post the script. As always: comments, tips and questions are appreciated. [APN] A comment about style - the braces around variable names are not required (and generally frowned upon by long-time Tclers) unless the name has "special characters" such as delimiters. Use $infoLst, $nice etc. instead. [CecilWesterhof] When it is frowned upon I maybe should change it. Some bash people also frowned on it, but in bash I always use it, because it is to easy to get into a situation where it is important. [KPV] Check out [CPU Monitor] which visually displays the CPU usage for every core. <>CPU usage | System Maintenance | Linux