ctrl + z fg bg，ctrlfgbg

ctrl + z fg bg，ctrlfgbg

[root@bass ~]# jobs
[1]+  Stopped                 vncviewer 192.168.1.17:5904
[root@bass ~]# #ctrl + z
[root@bass ~]# bg 1
[1]+ vncviewer 192.168.1.17:5904 &
[root@bass ~]# jobs
[1]+  Running                 vncviewer 192.168.1.17:5904 &
[root@bass ~]# #bg + 序列号 ----吊到后台运行
[root@bass ~]# fg 1
vncviewer 192.168.1.17:5904
# fg + 序列号 ------->把程序调到前台