Ping failure monitorOpenVPN, Server 12.04, connect to machines in home LAN behind VPN serverx230 tablet , realtek 8192ce connects to router but no internet12.04 - Extra default route breaks internetip netns monitor not working in a scriptWifi connected but no internet access (Lubuntu 14.04)Ubuntu machine not responding to ping from Windows machine on same network -2Ping yes, Internet noUbuntu server 16.04 can't ping outside IP's or domains or do updatesPC (Ubuntu 18.04.01 Server Edition) and laptop (VMware Ubuntu 18.04.01 Server Edition) linked via cable: ping works only one-wayCan't ping my ubuntu 18.04 from Windows machines using FQDN
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Ping failure monitor
OpenVPN, Server 12.04, connect to machines in home LAN behind VPN serverx230 tablet , realtek 8192ce connects to router but no internet12.04 - Extra default route breaks internetip netns monitor not working in a scriptWifi connected but no internet access (Lubuntu 14.04)Ubuntu machine not responding to ping from Windows machine on same network -2Ping yes, Internet noUbuntu server 16.04 can't ping outside IP's or domains or do updatesPC (Ubuntu 18.04.01 Server Edition) and laptop (VMware Ubuntu 18.04.01 Server Edition) linked via cable: ping works only one-wayCan't ping my ubuntu 18.04 from Windows machines using FQDN
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
the network frequently fails and I would like to monitor the output. I tried to makeshift a command like:
ping www.google.fr | while read pong; do echo "$(date): $pong"; done 1>/dev/null && 2> ~/ping_err.log
but the STDERR is still redirected to STDOUT instead ping_err.log
note:
I want only STDERR in the file (not 2>&1)
Thanks!
networking
asked 8 hours ago
Brad ThompsonBrad Thompson
488 bronze badges
add a comment |
the network frequently fails and I would like to monitor the output. I tried to makeshift a command like:
ping www.google.fr | while read pong; do echo "$(date): $pong"; done 1>/dev/null && 2> ~/ping_err.log
but the STDERR is still redirected to STDOUT instead ping_err.log
note:
I want only STDERR in the file (not 2>&1)
Thanks!
networking
asked 8 hours ago
Brad ThompsonBrad Thompson
488 bronze badges
I can't test it right now, but shouldn't it work if you omit the&&?
– danzel
8 hours ago
actually, the && was added but the stderr is still on the screen
– Brad Thompson
8 hours ago
add a comment |
the network frequently fails and I would like to monitor the output. I tried to makeshift a command like:
ping www.google.fr | while read pong; do echo "$(date): $pong"; done 1>/dev/null && 2> ~/ping_err.log
but the STDERR is still redirected to STDOUT instead ping_err.log
note:
I want only STDERR in the file (not 2>&1)
Thanks!
networking
asked 8 hours ago
Brad ThompsonBrad Thompson
488 bronze badges
the network frequently fails and I would like to monitor the output. I tried to makeshift a command like:
ping www.google.fr | while read pong; do echo "$(date): $pong"; done 1>/dev/null && 2> ~/ping_err.log
but the STDERR is still redirected to STDOUT instead ping_err.log
note:
I want only STDERR in the file (not 2>&1)
Thanks!
networking
networking
asked 8 hours ago
Brad ThompsonBrad Thompson
488 bronze badges
asked 8 hours ago
Brad ThompsonBrad Thompson
488 bronze badges
asked 8 hours ago
Brad ThompsonBrad Thompson
488 bronze badges
asked 8 hours ago
Brad ThompsonBrad Thompson
488 bronze badges
asked 8 hours ago
Brad ThompsonBrad Thompson
488 bronze badges
488 bronze badges
I can't test it right now, but shouldn't it work if you omit the&&?
– danzel
8 hours ago
actually, the && was added but the stderr is still on the screen
– Brad Thompson
8 hours ago
add a comment |
I can't test it right now, but shouldn't it work if you omit the&&?
– danzel
8 hours ago
actually, the && was added but the stderr is still on the screen
– Brad Thompson
8 hours ago
I can't test it right now, but shouldn't it work if you omit the
&&?– danzel
8 hours ago
I can't test it right now, but shouldn't it work if you omit the
&&?– danzel
8 hours ago
actually, the && was added but the stderr is still on the screen
– Brad Thompson
8 hours ago
actually, the && was added but the stderr is still on the screen
– Brad Thompson
8 hours ago
add a comment |
2 Answers
2
active
oldest
votes
Rather than answer your stderr redirection question, I'll suggest a better (IMHO) way:
In https://github.com/waltinator/net-o-matic.git - Watch for (WiFi) network going down, then do a user-specified thing to fix it.
There's a way to monitor your connection:
ip monitor address |
egrep --line-buffered
'^Deleted [[:digit:]]+: [[:alnum:]]+[[:space:]]+inet[[:space:]].* scope global ' |
while read line ; do
...
My net-o-matic script also contains a way to ask once:
function netstate () egrep -q 'UP,LOWER_UP.* state UP'
if [[ $? -eq 0 ]] ; then
echo "UP"
else
echo "DOWN"
fi
answered 8 hours ago
waltinatorwaltinator
23.6k7 gold badges42 silver badges72 bronze badges
add a comment |
Using your code, this seems to work:
$ ping www.google.fr 2>&1 > /dev/null | while read pong; do echo "$(date): $pong" ; done 2>&1 > ping_err.log
[no output]
$ cat ping_err.log
vie jul 5 15:56:09 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:10 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:11 -...
answered 7 hours ago
guillermo chamorroguillermo chamorro
1939 bronze badges
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Rather than answer your stderr redirection question, I'll suggest a better (IMHO) way:
In https://github.com/waltinator/net-o-matic.git - Watch for (WiFi) network going down, then do a user-specified thing to fix it.
There's a way to monitor your connection:
ip monitor address |
egrep --line-buffered
'^Deleted [[:digit:]]+: [[:alnum:]]+[[:space:]]+inet[[:space:]].* scope global ' |
while read line ; do
...
My net-o-matic script also contains a way to ask once:
function netstate () egrep -q 'UP,LOWER_UP.* state UP'
if [[ $? -eq 0 ]] ; then
echo "UP"
else
echo "DOWN"
fi
answered 8 hours ago
waltinatorwaltinator
23.6k7 gold badges42 silver badges72 bronze badges
add a comment |
Rather than answer your stderr redirection question, I'll suggest a better (IMHO) way:
In https://github.com/waltinator/net-o-matic.git - Watch for (WiFi) network going down, then do a user-specified thing to fix it.
There's a way to monitor your connection:
ip monitor address |
egrep --line-buffered
'^Deleted [[:digit:]]+: [[:alnum:]]+[[:space:]]+inet[[:space:]].* scope global ' |
while read line ; do
...
My net-o-matic script also contains a way to ask once:
function netstate () egrep -q 'UP,LOWER_UP.* state UP'
if [[ $? -eq 0 ]] ; then
echo "UP"
else
echo "DOWN"
fi
answered 8 hours ago
waltinatorwaltinator
23.6k7 gold badges42 silver badges72 bronze badges
add a comment |
Rather than answer your stderr redirection question, I'll suggest a better (IMHO) way:
In https://github.com/waltinator/net-o-matic.git - Watch for (WiFi) network going down, then do a user-specified thing to fix it.
There's a way to monitor your connection:
ip monitor address |
egrep --line-buffered
'^Deleted [[:digit:]]+: [[:alnum:]]+[[:space:]]+inet[[:space:]].* scope global ' |
while read line ; do
...
My net-o-matic script also contains a way to ask once:
function netstate () egrep -q 'UP,LOWER_UP.* state UP'
if [[ $? -eq 0 ]] ; then
echo "UP"
else
echo "DOWN"
fi
answered 8 hours ago
waltinatorwaltinator
23.6k7 gold badges42 silver badges72 bronze badges
Rather than answer your stderr redirection question, I'll suggest a better (IMHO) way:
In https://github.com/waltinator/net-o-matic.git - Watch for (WiFi) network going down, then do a user-specified thing to fix it.
There's a way to monitor your connection:
ip monitor address |
egrep --line-buffered
'^Deleted [[:digit:]]+: [[:alnum:]]+[[:space:]]+inet[[:space:]].* scope global ' |
while read line ; do
...
My net-o-matic script also contains a way to ask once:
function netstate () egrep -q 'UP,LOWER_UP.* state UP'
if [[ $? -eq 0 ]] ; then
echo "UP"
else
echo "DOWN"
fi
answered 8 hours ago
waltinatorwaltinator
23.6k7 gold badges42 silver badges72 bronze badges
answered 8 hours ago
waltinatorwaltinator
23.6k7 gold badges42 silver badges72 bronze badges
answered 8 hours ago
waltinatorwaltinator
23.6k7 gold badges42 silver badges72 bronze badges
answered 8 hours ago
waltinatorwaltinator
23.6k7 gold badges42 silver badges72 bronze badges
23.6k7 gold badges42 silver badges72 bronze badges
add a comment |
add a comment |
Using your code, this seems to work:
$ ping www.google.fr 2>&1 > /dev/null | while read pong; do echo "$(date): $pong" ; done 2>&1 > ping_err.log
[no output]
$ cat ping_err.log
vie jul 5 15:56:09 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:10 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:11 -...
answered 7 hours ago
guillermo chamorroguillermo chamorro
1939 bronze badges
add a comment |
Using your code, this seems to work:
$ ping www.google.fr 2>&1 > /dev/null | while read pong; do echo "$(date): $pong" ; done 2>&1 > ping_err.log
[no output]
$ cat ping_err.log
vie jul 5 15:56:09 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:10 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:11 -...
answered 7 hours ago
guillermo chamorroguillermo chamorro
1939 bronze badges
add a comment |
Using your code, this seems to work:
$ ping www.google.fr 2>&1 > /dev/null | while read pong; do echo "$(date): $pong" ; done 2>&1 > ping_err.log
[no output]
$ cat ping_err.log
vie jul 5 15:56:09 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:10 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:11 -...
answered 7 hours ago
guillermo chamorroguillermo chamorro
1939 bronze badges
Using your code, this seems to work:
$ ping www.google.fr 2>&1 > /dev/null | while read pong; do echo "$(date): $pong" ; done 2>&1 > ping_err.log
[no output]
$ cat ping_err.log
vie jul 5 15:56:09 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:10 -03 2019: ping: sendmsg: La red es inaccesible
vie jul 5 15:56:11 -...
answered 7 hours ago
guillermo chamorroguillermo chamorro
1939 bronze badges
edited 7 hours ago
answered 7 hours ago
guillermo chamorroguillermo chamorro
1939 bronze badges
answered 7 hours ago
guillermo chamorroguillermo chamorro
1939 bronze badges
answered 7 hours ago
guillermo chamorroguillermo chamorro
1939 bronze badges
1939 bronze badges
add a comment |
add a comment |
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I can't test it right now, but shouldn't it work if you omit the
&&?– danzel
8 hours ago
actually, the && was added but the stderr is still on the screen
– Brad Thompson
8 hours ago