pbcopy and pbpaste are among my top commandline utilities. If you are running linux in WSL, you can add the following to you path to recreate their functionality:
# pbpaste
#!/bin/bash
# Adapted from https://www.techtronic.us/pbcopy-pbpaste-for-wsl/
powershell.exe Get-Clipboard | sed 's/\r$//' | sed -z '$ s/\n$//'
exit 0
and # pbcopy
#!/bin/bash
#Adapted from https://www.techtronic.us/pbcopy-pbpaste-for-wsl/
<&0 clip.exe
exit 0