attach to tty running a process
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I have a systemd service file that runs a java program in another tty
[Unit]
Description=java program
After=network-online.target
[Service]
Type=simple
ExecStart=/usr/bin/java -cp "/home/user/someclass.jar"
Restart=always
RestartSec=10
StandardInput=tty-force
StandardOutput=inherit
StandardError=inherit
TTYPath=/dev/tty10
TTYVTDisallocate=yes
TTYReset=yes
TTYVHangup=yes
[Install]
WantedBy=multi-user.target
The program waits for input in the tty, I can change to that tty by using Ctrl+Alt+F10 or using chvt 10 and I'm able to interact with the program.
Now I want to send input and get output from that tty without changing my current tty.
I tried using screen and all I get is a blank screen and. I tried using script which succeeded if I run bash in that tty but fails If i run a java program
gnu-screen java tty
asked Mar 6 at 11:18
MOHAMMAD RASIM
586
add a comment |Â
up vote
0
down vote
favorite
I have a systemd service file that runs a java program in another tty
[Unit]
Description=java program
After=network-online.target
[Service]
Type=simple
ExecStart=/usr/bin/java -cp "/home/user/someclass.jar"
Restart=always
RestartSec=10
StandardInput=tty-force
StandardOutput=inherit
StandardError=inherit
TTYPath=/dev/tty10
TTYVTDisallocate=yes
TTYReset=yes
TTYVHangup=yes
[Install]
WantedBy=multi-user.target
The program waits for input in the tty, I can change to that tty by using Ctrl+Alt+F10 or using chvt 10 and I'm able to interact with the program.
Now I want to send input and get output from that tty without changing my current tty.
I tried using screen and all I get is a blank screen and. I tried using script which succeeded if I run bash in that tty but fails If i run a java program
gnu-screen java tty
asked Mar 6 at 11:18
MOHAMMAD RASIM
586
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have a systemd service file that runs a java program in another tty
[Unit]
Description=java program
After=network-online.target
[Service]
Type=simple
ExecStart=/usr/bin/java -cp "/home/user/someclass.jar"
Restart=always
RestartSec=10
StandardInput=tty-force
StandardOutput=inherit
StandardError=inherit
TTYPath=/dev/tty10
TTYVTDisallocate=yes
TTYReset=yes
TTYVHangup=yes
[Install]
WantedBy=multi-user.target
The program waits for input in the tty, I can change to that tty by using Ctrl+Alt+F10 or using chvt 10 and I'm able to interact with the program.
Now I want to send input and get output from that tty without changing my current tty.
I tried using screen and all I get is a blank screen and. I tried using script which succeeded if I run bash in that tty but fails If i run a java program
gnu-screen java tty
asked Mar 6 at 11:18
MOHAMMAD RASIM
586
I have a systemd service file that runs a java program in another tty
[Unit]
Description=java program
After=network-online.target
[Service]
Type=simple
ExecStart=/usr/bin/java -cp "/home/user/someclass.jar"
Restart=always
RestartSec=10
StandardInput=tty-force
StandardOutput=inherit
StandardError=inherit
TTYPath=/dev/tty10
TTYVTDisallocate=yes
TTYReset=yes
TTYVHangup=yes
[Install]
WantedBy=multi-user.target
The program waits for input in the tty, I can change to that tty by using Ctrl+Alt+F10 or using chvt 10 and I'm able to interact with the program.
Now I want to send input and get output from that tty without changing my current tty.
I tried using screen and all I get is a blank screen and. I tried using script which succeeded if I run bash in that tty but fails If i run a java program
gnu-screen java tty
asked Mar 6 at 11:18
MOHAMMAD RASIM
586
asked Mar 6 at 11:18
MOHAMMAD RASIM
586
asked Mar 6 at 11:18
MOHAMMAD RASIM
586
asked Mar 6 at 11:18
MOHAMMAD RASIM
586
586
add a comment |Â
add a comment |Â
1 Answer
1
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oldest
votes
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0
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The PTY feature of socat may be your best bet for interfacing terminal-heavy apps programmatically w/o any extra functionality. See the examples in the man page.
Also, dtach provides screen-like (multi-way) reattachment semantics for easy access from a terminal emulator.
answered Mar 6 at 11:30
L29Ah
451112
Can you provide an example ofsocatto run on /dev/tty10? Also looking at the man page ofdtachI see no mention ofdtachworking with ttys, only sockets.
– MOHAMMAD RASIM
Mar 6 at 12:19
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
The PTY feature of socat may be your best bet for interfacing terminal-heavy apps programmatically w/o any extra functionality. See the examples in the man page.
Also, dtach provides screen-like (multi-way) reattachment semantics for easy access from a terminal emulator.
answered Mar 6 at 11:30
L29Ah
451112
Can you provide an example ofsocatto run on /dev/tty10? Also looking at the man page ofdtachI see no mention ofdtachworking with ttys, only sockets.
– MOHAMMAD RASIM
Mar 6 at 12:19
add a comment |Â
up vote
0
down vote
The PTY feature of socat may be your best bet for interfacing terminal-heavy apps programmatically w/o any extra functionality. See the examples in the man page.
Also, dtach provides screen-like (multi-way) reattachment semantics for easy access from a terminal emulator.
answered Mar 6 at 11:30
L29Ah
451112
Can you provide an example ofsocatto run on /dev/tty10? Also looking at the man page ofdtachI see no mention ofdtachworking with ttys, only sockets.
– MOHAMMAD RASIM
Mar 6 at 12:19
add a comment |Â
up vote
0
down vote
up vote
0
down vote
The PTY feature of socat may be your best bet for interfacing terminal-heavy apps programmatically w/o any extra functionality. See the examples in the man page.
Also, dtach provides screen-like (multi-way) reattachment semantics for easy access from a terminal emulator.
answered Mar 6 at 11:30
L29Ah
451112
The PTY feature of socat may be your best bet for interfacing terminal-heavy apps programmatically w/o any extra functionality. See the examples in the man page.
Also, dtach provides screen-like (multi-way) reattachment semantics for easy access from a terminal emulator.
answered Mar 6 at 11:30
L29Ah
451112
answered Mar 6 at 11:30
L29Ah
451112
answered Mar 6 at 11:30
L29Ah
451112
answered Mar 6 at 11:30
L29Ah
451112
451112
Can you provide an example ofsocatto run on /dev/tty10? Also looking at the man page ofdtachI see no mention ofdtachworking with ttys, only sockets.
– MOHAMMAD RASIM
Mar 6 at 12:19
add a comment |Â
Can you provide an example ofsocatto run on /dev/tty10? Also looking at the man page ofdtachI see no mention ofdtachworking with ttys, only sockets.
– MOHAMMAD RASIM
Mar 6 at 12:19
Can you provide an example of
socat to run on /dev/tty10? Also looking at the man page of dtach I see no mention of dtach working with ttys, only sockets.– MOHAMMAD RASIM
Mar 6 at 12:19
Can you provide an example of
socat to run on /dev/tty10? Also looking at the man page of dtach I see no mention of dtach working with ttys, only sockets.– MOHAMMAD RASIM
Mar 6 at 12:19
add a comment |Â
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