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Unknowingly ran an infinite loop in terminal
Why does reading from two connected pty's cause an infinite loop?Pushdown Terminal OutputHorizontal Scrolling in TerminalHighlighting command in terminalHow to solve terminal windowCannot terminate for loop in terminalTerminal vs Terminal emulatorTerminal: remember working directoryStopping infinit loop from php script run in linux terminalprevent program from influencing terminal?
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I was having a look at some 'cool' Linux commands and snippet, and out of curiosity I copied the below code from some random source to my terminal and ran.
while sleep 1;
do tput sc;
tput cup 0 $(($(tput cols)-29));
date;
tput rc;
done &
The code is to show a running clock at the top right corner of the terminal. The snippet worked very well and exactly did what I wanted it to, but now I just want to end this loop and get rid of the clock.
I looked for any relater scenarios on this platform and found a few, but none of them turned out to be helpful. Please help me in getting rid of this.
Also, if anyone could help me in understanding the above code, that would be very helpful. I'd finally be able to learn from my foolish mistake. I've some idea, as I know what tput command does, but still there're many dots which I'm not able to connect.
terminal
edited 1 min ago
ctrl-alt-delor
12.7k52663
asked 1 hour ago
Kartik ChauhanKartik Chauhan
1263
add a comment |
I was having a look at some 'cool' Linux commands and snippet, and out of curiosity I copied the below code from some random source to my terminal and ran.
while sleep 1;
do tput sc;
tput cup 0 $(($(tput cols)-29));
date;
tput rc;
done &
The code is to show a running clock at the top right corner of the terminal. The snippet worked very well and exactly did what I wanted it to, but now I just want to end this loop and get rid of the clock.
I looked for any relater scenarios on this platform and found a few, but none of them turned out to be helpful. Please help me in getting rid of this.
Also, if anyone could help me in understanding the above code, that would be very helpful. I'd finally be able to learn from my foolish mistake. I've some idea, as I know what tput command does, but still there're many dots which I'm not able to connect.
terminal
edited 1 min ago
ctrl-alt-delor
12.7k52663
asked 1 hour ago
Kartik ChauhanKartik Chauhan
1263
1
You can runjobsin your session to list active background jobs and then put it to foreground by typingfg <job number>. After type Ctrl+C to stop this infinite loop. This scenario is working only in terminal that run snippet.
– Yurij Goncharuk
54 mins ago
Thank you very much, a very clean way of getting rid of the loop. This should become the accepted answer.
– Kartik Chauhan
48 mins ago
You are welcome! I put it as answer bellow.
– Yurij Goncharuk
46 mins ago
1
Note that simply closing the terminal window will also terminate all running jobs attached to it.
– trlkly
10 mins ago
add a comment |
I was having a look at some 'cool' Linux commands and snippet, and out of curiosity I copied the below code from some random source to my terminal and ran.
while sleep 1;
do tput sc;
tput cup 0 $(($(tput cols)-29));
date;
tput rc;
done &
The code is to show a running clock at the top right corner of the terminal. The snippet worked very well and exactly did what I wanted it to, but now I just want to end this loop and get rid of the clock.
I looked for any relater scenarios on this platform and found a few, but none of them turned out to be helpful. Please help me in getting rid of this.
Also, if anyone could help me in understanding the above code, that would be very helpful. I'd finally be able to learn from my foolish mistake. I've some idea, as I know what tput command does, but still there're many dots which I'm not able to connect.
terminal
edited 1 min ago
ctrl-alt-delor
12.7k52663
asked 1 hour ago
Kartik ChauhanKartik Chauhan
1263
I was having a look at some 'cool' Linux commands and snippet, and out of curiosity I copied the below code from some random source to my terminal and ran.
while sleep 1;
do tput sc;
tput cup 0 $(($(tput cols)-29));
date;
tput rc;
done &
The code is to show a running clock at the top right corner of the terminal. The snippet worked very well and exactly did what I wanted it to, but now I just want to end this loop and get rid of the clock.
I looked for any relater scenarios on this platform and found a few, but none of them turned out to be helpful. Please help me in getting rid of this.
Also, if anyone could help me in understanding the above code, that would be very helpful. I'd finally be able to learn from my foolish mistake. I've some idea, as I know what tput command does, but still there're many dots which I'm not able to connect.
terminal
terminal
edited 1 min ago
ctrl-alt-delor
12.7k52663
asked 1 hour ago
Kartik ChauhanKartik Chauhan
1263
edited 1 min ago
ctrl-alt-delor
12.7k52663
asked 1 hour ago
Kartik ChauhanKartik Chauhan
1263
edited 1 min ago
ctrl-alt-delor
12.7k52663
edited 1 min ago
ctrl-alt-delor
12.7k52663
edited 1 min ago
ctrl-alt-delor
12.7k52663
12.7k52663
asked 1 hour ago
Kartik ChauhanKartik Chauhan
1263
asked 1 hour ago
Kartik ChauhanKartik Chauhan
1263
asked 1 hour ago
Kartik ChauhanKartik Chauhan
1263
1263
1
You can runjobsin your session to list active background jobs and then put it to foreground by typingfg <job number>. After type Ctrl+C to stop this infinite loop. This scenario is working only in terminal that run snippet.
– Yurij Goncharuk
54 mins ago
Thank you very much, a very clean way of getting rid of the loop. This should become the accepted answer.
– Kartik Chauhan
48 mins ago
You are welcome! I put it as answer bellow.
– Yurij Goncharuk
46 mins ago
1
Note that simply closing the terminal window will also terminate all running jobs attached to it.
– trlkly
10 mins ago
add a comment |
1
You can runjobsin your session to list active background jobs and then put it to foreground by typingfg <job number>. After type Ctrl+C to stop this infinite loop. This scenario is working only in terminal that run snippet.
– Yurij Goncharuk
54 mins ago
Thank you very much, a very clean way of getting rid of the loop. This should become the accepted answer.
– Kartik Chauhan
48 mins ago
You are welcome! I put it as answer bellow.
– Yurij Goncharuk
46 mins ago
1
Note that simply closing the terminal window will also terminate all running jobs attached to it.
– trlkly
10 mins ago
1
1
You can run
jobs in your session to list active background jobs and then put it to foreground by typing fg <job number>. After type Ctrl+C to stop this infinite loop. This scenario is working only in terminal that run snippet.– Yurij Goncharuk
54 mins ago
You can run
jobs in your session to list active background jobs and then put it to foreground by typing fg <job number>. After type Ctrl+C to stop this infinite loop. This scenario is working only in terminal that run snippet.– Yurij Goncharuk
54 mins ago
Thank you very much, a very clean way of getting rid of the loop. This should become the accepted answer.
– Kartik Chauhan
48 mins ago
Thank you very much, a very clean way of getting rid of the loop. This should become the accepted answer.
– Kartik Chauhan
48 mins ago
You are welcome! I put it as answer bellow.
– Yurij Goncharuk
46 mins ago
You are welcome! I put it as answer bellow.
– Yurij Goncharuk
46 mins ago
1
1
Note that simply closing the terminal window will also terminate all running jobs attached to it.
– trlkly
10 mins ago
Note that simply closing the terminal window will also terminate all running jobs attached to it.
– trlkly
10 mins ago
add a comment |
1 Answer
1
active
oldest
votes
You can run jobs command in your session to list active background jobs and then put them to foreground by typing fg <job number>. Then type Ctrl+C to stop this infinite loop.
This scenario is working only in terminal that run snippet.
Explanation:
tput sc - save cursor position.
tput cup 0 $(($(tput cols)-29)) - move cursor to position 0 of Y axis and (count of screen columns minus 29) of X axis.
date - just print current date.
tput rc - restore cursor position.
while sleep 1; ... do ... ; done - loop with delay of 1 second.
Type help while to know more about while loop in shell and follow to man 1 tput or tldp tput doc to know how tput works.
edited 17 secs ago
ctrl-alt-delor
12.7k52663
answered 46 mins ago
Yurij GoncharukYurij Goncharuk
2,4952724
I still would like to know how did the code do what it did.
– Kartik Chauhan
43 mins ago
@KartikChauhan I put some explanation also.
– Yurij Goncharuk
28 mins ago
@KartikChauhan You are right! Thank's! I've just fixed this.
– Yurij Goncharuk
22 mins ago
add a comment |
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1 Answer
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oldest
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1 Answer
1
active
oldest
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oldest
votes
active
oldest
votes
You can run jobs command in your session to list active background jobs and then put them to foreground by typing fg <job number>. Then type Ctrl+C to stop this infinite loop.
This scenario is working only in terminal that run snippet.
Explanation:
tput sc - save cursor position.
tput cup 0 $(($(tput cols)-29)) - move cursor to position 0 of Y axis and (count of screen columns minus 29) of X axis.
date - just print current date.
tput rc - restore cursor position.
while sleep 1; ... do ... ; done - loop with delay of 1 second.
Type help while to know more about while loop in shell and follow to man 1 tput or tldp tput doc to know how tput works.
edited 17 secs ago
ctrl-alt-delor
12.7k52663
answered 46 mins ago
Yurij GoncharukYurij Goncharuk
2,4952724
I still would like to know how did the code do what it did.
– Kartik Chauhan
43 mins ago
@KartikChauhan I put some explanation also.
– Yurij Goncharuk
28 mins ago
@KartikChauhan You are right! Thank's! I've just fixed this.
– Yurij Goncharuk
22 mins ago
add a comment |
You can run jobs command in your session to list active background jobs and then put them to foreground by typing fg <job number>. Then type Ctrl+C to stop this infinite loop.
This scenario is working only in terminal that run snippet.
Explanation:
tput sc - save cursor position.
tput cup 0 $(($(tput cols)-29)) - move cursor to position 0 of Y axis and (count of screen columns minus 29) of X axis.
date - just print current date.
tput rc - restore cursor position.
while sleep 1; ... do ... ; done - loop with delay of 1 second.
Type help while to know more about while loop in shell and follow to man 1 tput or tldp tput doc to know how tput works.
edited 17 secs ago
ctrl-alt-delor
12.7k52663
answered 46 mins ago
Yurij GoncharukYurij Goncharuk
2,4952724
I still would like to know how did the code do what it did.
– Kartik Chauhan
43 mins ago
@KartikChauhan I put some explanation also.
– Yurij Goncharuk
28 mins ago
@KartikChauhan You are right! Thank's! I've just fixed this.
– Yurij Goncharuk
22 mins ago
add a comment |
You can run jobs command in your session to list active background jobs and then put them to foreground by typing fg <job number>. Then type Ctrl+C to stop this infinite loop.
This scenario is working only in terminal that run snippet.
Explanation:
tput sc - save cursor position.
tput cup 0 $(($(tput cols)-29)) - move cursor to position 0 of Y axis and (count of screen columns minus 29) of X axis.
date - just print current date.
tput rc - restore cursor position.
while sleep 1; ... do ... ; done - loop with delay of 1 second.
Type help while to know more about while loop in shell and follow to man 1 tput or tldp tput doc to know how tput works.
edited 17 secs ago
ctrl-alt-delor
12.7k52663
answered 46 mins ago
Yurij GoncharukYurij Goncharuk
2,4952724
You can run jobs command in your session to list active background jobs and then put them to foreground by typing fg <job number>. Then type Ctrl+C to stop this infinite loop.
This scenario is working only in terminal that run snippet.
Explanation:
tput sc - save cursor position.
tput cup 0 $(($(tput cols)-29)) - move cursor to position 0 of Y axis and (count of screen columns minus 29) of X axis.
date - just print current date.
tput rc - restore cursor position.
while sleep 1; ... do ... ; done - loop with delay of 1 second.
Type help while to know more about while loop in shell and follow to man 1 tput or tldp tput doc to know how tput works.
edited 17 secs ago
ctrl-alt-delor
12.7k52663
answered 46 mins ago
Yurij GoncharukYurij Goncharuk
2,4952724
edited 17 secs ago
ctrl-alt-delor
12.7k52663
edited 17 secs ago
ctrl-alt-delor
12.7k52663
edited 17 secs ago
ctrl-alt-delor
12.7k52663
12.7k52663
answered 46 mins ago
Yurij GoncharukYurij Goncharuk
2,4952724
answered 46 mins ago
Yurij GoncharukYurij Goncharuk
2,4952724
answered 46 mins ago
Yurij GoncharukYurij Goncharuk
2,4952724
2,4952724
I still would like to know how did the code do what it did.
– Kartik Chauhan
43 mins ago
@KartikChauhan I put some explanation also.
– Yurij Goncharuk
28 mins ago
@KartikChauhan You are right! Thank's! I've just fixed this.
– Yurij Goncharuk
22 mins ago
add a comment |
I still would like to know how did the code do what it did.
– Kartik Chauhan
43 mins ago
@KartikChauhan I put some explanation also.
– Yurij Goncharuk
28 mins ago
@KartikChauhan You are right! Thank's! I've just fixed this.
– Yurij Goncharuk
22 mins ago
I still would like to know how did the code do what it did.
– Kartik Chauhan
43 mins ago
I still would like to know how did the code do what it did.
– Kartik Chauhan
43 mins ago
@KartikChauhan I put some explanation also.
– Yurij Goncharuk
28 mins ago
@KartikChauhan I put some explanation also.
– Yurij Goncharuk
28 mins ago
@KartikChauhan You are right! Thank's! I've just fixed this.
– Yurij Goncharuk
22 mins ago
@KartikChauhan You are right! Thank's! I've just fixed this.
– Yurij Goncharuk
22 mins ago
add a comment |
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1
You can run
jobsin your session to list active background jobs and then put it to foreground by typingfg <job number>. After type Ctrl+C to stop this infinite loop. This scenario is working only in terminal that run snippet.– Yurij Goncharuk
54 mins ago
Thank you very much, a very clean way of getting rid of the loop. This should become the accepted answer.
– Kartik Chauhan
48 mins ago
You are welcome! I put it as answer bellow.
– Yurij Goncharuk
46 mins ago
1
Note that simply closing the terminal window will also terminate all running jobs attached to it.
– trlkly
10 mins ago