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#!/bin/bash
# Craig Jennings <c@cjennings.net>
# Outputs a process's memory usage in multiple size units.
# Get a list of all processes
procs=$(ps aux --sort=-%mem | awk '{print $2, $4, $11}' | fzf)
# Check if a process was selected
if [ -z "$procs" ]; then
echo "No process selected."
exit 1
fi
# Get the PID of the selected process (first field)
PID=$(echo $procs | awk '{print $1}')
# Get the process name
PROCNAME=$(ps -p $PID -o comm=)
# Get the memory usage
KB=$(pmap -x $PID | grep total | awk '{print $4}')
# Convert to MB and GB
MB=$(echo "scale=2; $KB / 1024" | bc)
GB=$(echo "scale=2; $MB / 1024" | bc)
# Print the memory usage
printf "$PROCNAME (pid $PID) mem usage: $KB KB | $MB MB | $GB GB\n\n"
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