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How can I save just the last result of ping (using linux terminal)?
I have this bash command bellow (I think this is bash) but it's not overriding the last result. I've tried with only one ">" and ">|" as well, but no success.
My goal is to save only the last line on a .txt file (if possible just save the "time" parameter of ping) using linux terminal (I'm using Ubuntu 18.04).
while true; do (ping www.stackoverflow.com) >> rtt_test.txt; sleep 5; done
linux command-line-interface ping rtti
edited Jan 1 at 18:13
John Kugelman
246k54406459
asked Jan 1 at 18:11
Isaac BarrosIsaac Barros
11
add a comment |
I have this bash command bellow (I think this is bash) but it's not overriding the last result. I've tried with only one ">" and ">|" as well, but no success.
My goal is to save only the last line on a .txt file (if possible just save the "time" parameter of ping) using linux terminal (I'm using Ubuntu 18.04).
while true; do (ping www.stackoverflow.com) >> rtt_test.txt; sleep 5; done
linux command-line-interface ping rtti
edited Jan 1 at 18:13
John Kugelman
246k54406459
asked Jan 1 at 18:11
Isaac BarrosIsaac Barros
11
Possible duplicate of How to redirect output to a file and stdout, Shell output redirection inside a function, etc. Also see Bash manual, Chapter 20. I/O Redirection, and pay attention to "truncate" versus "append".
– jww
Jan 1 at 18:22
add a comment |
I have this bash command bellow (I think this is bash) but it's not overriding the last result. I've tried with only one ">" and ">|" as well, but no success.
My goal is to save only the last line on a .txt file (if possible just save the "time" parameter of ping) using linux terminal (I'm using Ubuntu 18.04).
while true; do (ping www.stackoverflow.com) >> rtt_test.txt; sleep 5; done
linux command-line-interface ping rtti
edited Jan 1 at 18:13
John Kugelman
246k54406459
asked Jan 1 at 18:11
Isaac BarrosIsaac Barros
11
I have this bash command bellow (I think this is bash) but it's not overriding the last result. I've tried with only one ">" and ">|" as well, but no success.
My goal is to save only the last line on a .txt file (if possible just save the "time" parameter of ping) using linux terminal (I'm using Ubuntu 18.04).
while true; do (ping www.stackoverflow.com) >> rtt_test.txt; sleep 5; done
linux command-line-interface ping rtti
linux command-line-interface ping rtti
edited Jan 1 at 18:13
John Kugelman
246k54406459
asked Jan 1 at 18:11
Isaac BarrosIsaac Barros
11
edited Jan 1 at 18:13
John Kugelman
246k54406459
asked Jan 1 at 18:11
Isaac BarrosIsaac Barros
11
edited Jan 1 at 18:13
John Kugelman
246k54406459
edited Jan 1 at 18:13
John Kugelman
246k54406459
edited Jan 1 at 18:13
John Kugelman
246k54406459
246k54406459
asked Jan 1 at 18:11
Isaac BarrosIsaac Barros
11
asked Jan 1 at 18:11
Isaac BarrosIsaac Barros
11
asked Jan 1 at 18:11
Isaac BarrosIsaac Barros
11
11
Possible duplicate of How to redirect output to a file and stdout, Shell output redirection inside a function, etc. Also see Bash manual, Chapter 20. I/O Redirection, and pay attention to "truncate" versus "append".
– jww
Jan 1 at 18:22
add a comment |
Possible duplicate of How to redirect output to a file and stdout, Shell output redirection inside a function, etc. Also see Bash manual, Chapter 20. I/O Redirection, and pay attention to "truncate" versus "append".
– jww
Jan 1 at 18:22
Possible duplicate of How to redirect output to a file and stdout, Shell output redirection inside a function, etc. Also see Bash manual, Chapter 20. I/O Redirection, and pay attention to "truncate" versus "append".
– jww
Jan 1 at 18:22
Possible duplicate of How to redirect output to a file and stdout, Shell output redirection inside a function, etc. Also see Bash manual, Chapter 20. I/O Redirection, and pay attention to "truncate" versus "append".
– jww
Jan 1 at 18:22
add a comment |
1 Answer
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To make ping exit without having to hit cntrl+c, use either -c <number of pings to send> or -w <number of seconds to run for>. Then using a single > will replace the output file with the new results each time.
If you want just the time to send a single ping, you can use ping -c 1 www.stackoverflow.com | head -2 | tail -1 | cut -d "=" -f 4 > myfile.
answered Jan 1 at 18:33
ColeCole
490718
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
To make ping exit without having to hit cntrl+c, use either -c <number of pings to send> or -w <number of seconds to run for>. Then using a single > will replace the output file with the new results each time.
If you want just the time to send a single ping, you can use ping -c 1 www.stackoverflow.com | head -2 | tail -1 | cut -d "=" -f 4 > myfile.
answered Jan 1 at 18:33
ColeCole
490718
add a comment |
To make ping exit without having to hit cntrl+c, use either -c <number of pings to send> or -w <number of seconds to run for>. Then using a single > will replace the output file with the new results each time.
If you want just the time to send a single ping, you can use ping -c 1 www.stackoverflow.com | head -2 | tail -1 | cut -d "=" -f 4 > myfile.
answered Jan 1 at 18:33
ColeCole
490718
add a comment |
To make ping exit without having to hit cntrl+c, use either -c <number of pings to send> or -w <number of seconds to run for>. Then using a single > will replace the output file with the new results each time.
If you want just the time to send a single ping, you can use ping -c 1 www.stackoverflow.com | head -2 | tail -1 | cut -d "=" -f 4 > myfile.
answered Jan 1 at 18:33
ColeCole
490718
To make ping exit without having to hit cntrl+c, use either -c <number of pings to send> or -w <number of seconds to run for>. Then using a single > will replace the output file with the new results each time.
If you want just the time to send a single ping, you can use ping -c 1 www.stackoverflow.com | head -2 | tail -1 | cut -d "=" -f 4 > myfile.
answered Jan 1 at 18:33
ColeCole
490718
answered Jan 1 at 18:33
ColeCole
490718
answered Jan 1 at 18:33
ColeCole
490718
answered Jan 1 at 18:33
ColeCole
490718
490718
add a comment |
add a comment |
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Possible duplicate of How to redirect output to a file and stdout, Shell output redirection inside a function, etc. Also see Bash manual, Chapter 20. I/O Redirection, and pay attention to "truncate" versus "append".
– jww
Jan 1 at 18:22