✔️ cdanis@evebox ~ 🕝☕ sudo fuser /var/log/syslog 
/var/log/syslog:       844
✔️ cdanis@evebox ~ 🕝☕ sudo fuser /var/log/syslog | awk '{print $2}'
/var/log/syslog:    

✔️ cdanis@evebox ~ 🕝☕ sudo fuser /var/log/syslog | awk '{print $1}'
/var/log/syslog:    
844
✔️ cdanis@evebox ~ 🕝☕ sudo strace -ewrite fuser /var/log/syslog    
write(2, "/var/log/syslog:", 16/var/log/syslog:)        = 16
write(2, " ", 1 )                        = 1
write(2, " ", 1 )                        = 1
write(2, " ", 1 )                        = 1
write(2, " ", 1 )                        = 1
write(1, "   844", 6   844)                   = 6
write(2, "\n", 1
)                       = 1
+++ exited with 0 +++
✔️ cdanis@evebox ~ 🕝☕