PID of Process BASH

pid.sh

#!/bin/bash

# Get the PID of a process matching the pattern specified
# in the first argument as displayed in ps axf

# This line can be used in any script, just replace $1 with the match string:
PID=$(ps axf | grep "$1" | grep -v grep | awk '{print $1}' | head -n1)

echo "$PID"