Bash Script not looping [closed]
Clash Royale CLAN TAG#URR8PPP
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I've got a script that should keep execute a function when a file name changes - the issue i'm having is that after the first execution the while loop doesn't continue to run. The script doesn't exit it appears to just hang. Anyone any ideas?
#!/bin/bash
#*******
#10.0.4.****
set -x
#trap read debug
end=432000
state='unknown'
cachereset()
rm ~/state/*.txt
cp /media/state/*.txt ~/state/
echo "unknown"
statecheck()
if [ -f ~/state/meeting.txt ]; then
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "****@****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "meeting"
elif [ -f ~/state/normal.txt ]; then
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "***@****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "normal"
else
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "***@*****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "normal"
fi
state=$(cachereset)
while [ $SECONDS -lt $end ]; do
echo "frank"
if [ $state == "unknown" ]; then
state=$(statecheck)
fi
if [ $state == "meeting" ]; then
while [ -f /media/state/meeting.txt ]; do
sleep 30
done
state=$(cachereset)
fi
if [ $state == "normal" ]; then
while [ -f /media/state/normal.txt ]; do
sleep 30
done
state=$(cachereset)
fi
done
shutdown -r 1
bash
edited Sep 5 at 15:56
Andy Dalton
4,8391520
asked Sep 5 at 15:22
Dan
61
closed as unclear what you're asking by Jeff Schaller, RalfFriedl, Thomas, schily, Archemar Sep 8 at 13:23
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
 |Â
show 1 more comment
up vote
1
down vote
favorite
I've got a script that should keep execute a function when a file name changes - the issue i'm having is that after the first execution the while loop doesn't continue to run. The script doesn't exit it appears to just hang. Anyone any ideas?
#!/bin/bash
#*******
#10.0.4.****
set -x
#trap read debug
end=432000
state='unknown'
cachereset()
rm ~/state/*.txt
cp /media/state/*.txt ~/state/
echo "unknown"
statecheck()
if [ -f ~/state/meeting.txt ]; then
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "****@****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "meeting"
elif [ -f ~/state/normal.txt ]; then
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "***@****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "normal"
else
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "***@*****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "normal"
fi
state=$(cachereset)
while [ $SECONDS -lt $end ]; do
echo "frank"
if [ $state == "unknown" ]; then
state=$(statecheck)
fi
if [ $state == "meeting" ]; then
while [ -f /media/state/meeting.txt ]; do
sleep 30
done
state=$(cachereset)
fi
if [ $state == "normal" ]; then
while [ -f /media/state/normal.txt ]; do
sleep 30
done
state=$(cachereset)
fi
done
shutdown -r 1
bash
edited Sep 5 at 15:56
Andy Dalton
4,8391520
asked Sep 5 at 15:22
Dan
61
closed as unclear what you're asking by Jeff Schaller, RalfFriedl, Thomas, schily, Archemar Sep 8 at 13:23
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
1
You may findinotifywaitto be useful.
– ctrl-alt-delor
Sep 5 at 15:25
2
an appearance of hanging could result from either of yourwhile [ -f /media/state/...sleep 30 loops, as long as either of those files exist, then bash will do infinite 30-second loops. Is that what yourset -xoutput is indicating?
– Jeff Schaller
Sep 5 at 15:38
1
To execute a bash script in debug mode prepend the script by -x:bash -x yourscriptthat way you can see what the script is doing and where it enters a loop or blocks.
– YoMismo
Sep 6 at 6:47
@JeffSchaller the script is meant to loop indefinitely whilst the file is still present (well for 5 days while the main loop still runs) the issue is that looking at the debug output will run perfectly until after the first time state=$(statecheck) runs and then there's no further output. Changing the file that it monitors doesn't result in any changes either.
– Dan
Sep 7 at 15:20
What's the last line fromset -xbefore it hangs?
– Jeff Schaller
Sep 7 at 19:57
 |Â
show 1 more comment
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I've got a script that should keep execute a function when a file name changes - the issue i'm having is that after the first execution the while loop doesn't continue to run. The script doesn't exit it appears to just hang. Anyone any ideas?
#!/bin/bash
#*******
#10.0.4.****
set -x
#trap read debug
end=432000
state='unknown'
cachereset()
rm ~/state/*.txt
cp /media/state/*.txt ~/state/
echo "unknown"
statecheck()
if [ -f ~/state/meeting.txt ]; then
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "****@****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "meeting"
elif [ -f ~/state/normal.txt ]; then
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "***@****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "normal"
else
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "***@*****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "normal"
fi
state=$(cachereset)
while [ $SECONDS -lt $end ]; do
echo "frank"
if [ $state == "unknown" ]; then
state=$(statecheck)
fi
if [ $state == "meeting" ]; then
while [ -f /media/state/meeting.txt ]; do
sleep 30
done
state=$(cachereset)
fi
if [ $state == "normal" ]; then
while [ -f /media/state/normal.txt ]; do
sleep 30
done
state=$(cachereset)
fi
done
shutdown -r 1
bash
edited Sep 5 at 15:56
Andy Dalton
4,8391520
asked Sep 5 at 15:22
Dan
61
I've got a script that should keep execute a function when a file name changes - the issue i'm having is that after the first execution the while loop doesn't continue to run. The script doesn't exit it appears to just hang. Anyone any ideas?
#!/bin/bash
#*******
#10.0.4.****
set -x
#trap read debug
end=432000
state='unknown'
cachereset()
rm ~/state/*.txt
cp /media/state/*.txt ~/state/
echo "unknown"
statecheck()
if [ -f ~/state/meeting.txt ]; then
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "****@****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "meeting"
elif [ -f ~/state/normal.txt ]; then
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "***@****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "normal"
else
pkill google-chrome
google-chrome https://**** --incognito & #Load Chromium
sleep 30 #Wait for Chromium to load
xdotool type "***@*****.co.uk"
xdotool key Tab
xdotool type "PASS!"
xdotool key Return
sleep 15
xdotool key F11
echo "normal"
fi
state=$(cachereset)
while [ $SECONDS -lt $end ]; do
echo "frank"
if [ $state == "unknown" ]; then
state=$(statecheck)
fi
if [ $state == "meeting" ]; then
while [ -f /media/state/meeting.txt ]; do
sleep 30
done
state=$(cachereset)
fi
if [ $state == "normal" ]; then
while [ -f /media/state/normal.txt ]; do
sleep 30
done
state=$(cachereset)
fi
done
shutdown -r 1
bash
bash
edited Sep 5 at 15:56
Andy Dalton
4,8391520
asked Sep 5 at 15:22
Dan
61
edited Sep 5 at 15:56
Andy Dalton
4,8391520
asked Sep 5 at 15:22
Dan
61
edited Sep 5 at 15:56
Andy Dalton
4,8391520
edited Sep 5 at 15:56
Andy Dalton
4,8391520
edited Sep 5 at 15:56
Andy Dalton
4,8391520
4,8391520
asked Sep 5 at 15:22
Dan
61
asked Sep 5 at 15:22
Dan
61
asked Sep 5 at 15:22
Dan
61
61
closed as unclear what you're asking by Jeff Schaller, RalfFriedl, Thomas, schily, Archemar Sep 8 at 13:23
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
closed as unclear what you're asking by Jeff Schaller, RalfFriedl, Thomas, schily, Archemar Sep 8 at 13:23
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
1
You may findinotifywaitto be useful.
– ctrl-alt-delor
Sep 5 at 15:25
2
an appearance of hanging could result from either of yourwhile [ -f /media/state/...sleep 30 loops, as long as either of those files exist, then bash will do infinite 30-second loops. Is that what yourset -xoutput is indicating?
– Jeff Schaller
Sep 5 at 15:38
1
To execute a bash script in debug mode prepend the script by -x:bash -x yourscriptthat way you can see what the script is doing and where it enters a loop or blocks.
– YoMismo
Sep 6 at 6:47
@JeffSchaller the script is meant to loop indefinitely whilst the file is still present (well for 5 days while the main loop still runs) the issue is that looking at the debug output will run perfectly until after the first time state=$(statecheck) runs and then there's no further output. Changing the file that it monitors doesn't result in any changes either.
– Dan
Sep 7 at 15:20
What's the last line fromset -xbefore it hangs?
– Jeff Schaller
Sep 7 at 19:57
 |Â
show 1 more comment
1
You may findinotifywaitto be useful.
– ctrl-alt-delor
Sep 5 at 15:25
2
an appearance of hanging could result from either of yourwhile [ -f /media/state/...sleep 30 loops, as long as either of those files exist, then bash will do infinite 30-second loops. Is that what yourset -xoutput is indicating?
– Jeff Schaller
Sep 5 at 15:38
1
To execute a bash script in debug mode prepend the script by -x:bash -x yourscriptthat way you can see what the script is doing and where it enters a loop or blocks.
– YoMismo
Sep 6 at 6:47
@JeffSchaller the script is meant to loop indefinitely whilst the file is still present (well for 5 days while the main loop still runs) the issue is that looking at the debug output will run perfectly until after the first time state=$(statecheck) runs and then there's no further output. Changing the file that it monitors doesn't result in any changes either.
– Dan
Sep 7 at 15:20
What's the last line fromset -xbefore it hangs?
– Jeff Schaller
Sep 7 at 19:57
1
1
You may find
inotifywait to be useful.– ctrl-alt-delor
Sep 5 at 15:25
You may find
inotifywait to be useful.– ctrl-alt-delor
Sep 5 at 15:25
2
2
an appearance of hanging could result from either of your
while [ -f /media/state/... sleep 30 loops, as long as either of those files exist, then bash will do infinite 30-second loops. Is that what your set -x output is indicating?– Jeff Schaller
Sep 5 at 15:38
an appearance of hanging could result from either of your
while [ -f /media/state/... sleep 30 loops, as long as either of those files exist, then bash will do infinite 30-second loops. Is that what your set -x output is indicating?– Jeff Schaller
Sep 5 at 15:38
1
1
To execute a bash script in debug mode prepend the script by -x:
bash -x yourscript that way you can see what the script is doing and where it enters a loop or blocks.– YoMismo
Sep 6 at 6:47
To execute a bash script in debug mode prepend the script by -x:
bash -x yourscript that way you can see what the script is doing and where it enters a loop or blocks.– YoMismo
Sep 6 at 6:47
@JeffSchaller the script is meant to loop indefinitely whilst the file is still present (well for 5 days while the main loop still runs) the issue is that looking at the debug output will run perfectly until after the first time state=$(statecheck) runs and then there's no further output. Changing the file that it monitors doesn't result in any changes either.
– Dan
Sep 7 at 15:20
@JeffSchaller the script is meant to loop indefinitely whilst the file is still present (well for 5 days while the main loop still runs) the issue is that looking at the debug output will run perfectly until after the first time state=$(statecheck) runs and then there's no further output. Changing the file that it monitors doesn't result in any changes either.
– Dan
Sep 7 at 15:20
What's the last line from
set -x before it hangs?– Jeff Schaller
Sep 7 at 19:57
What's the last line from
set -x before it hangs?– Jeff Schaller
Sep 7 at 19:57
 |Â
show 1 more comment
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1
You may find
inotifywaitto be useful.– ctrl-alt-delor
Sep 5 at 15:25
2
an appearance of hanging could result from either of your
while [ -f /media/state/...sleep 30 loops, as long as either of those files exist, then bash will do infinite 30-second loops. Is that what yourset -xoutput is indicating?– Jeff Schaller
Sep 5 at 15:38
1
To execute a bash script in debug mode prepend the script by -x:
bash -x yourscriptthat way you can see what the script is doing and where it enters a loop or blocks.– YoMismo
Sep 6 at 6:47
@JeffSchaller the script is meant to loop indefinitely whilst the file is still present (well for 5 days while the main loop still runs) the issue is that looking at the debug output will run perfectly until after the first time state=$(statecheck) runs and then there's no further output. Changing the file that it monitors doesn't result in any changes either.
– Dan
Sep 7 at 15:20
What's the last line from
set -xbefore it hangs?– Jeff Schaller
Sep 7 at 19:57