How to automate the process of executing a command upon creation of a file
How to automate the process of executing a command upon creation of a file.
I have an application wherein a tool generates an xsd schema from a xml file. My next module uses this xsd schema for further processing.
I want to automate this process i.e. to run a command once the file is generated. This application will run everyday on ubuntu machine so I want to automate it. I don't want any human intervention in this process.
I did search inotify lib which is used for similar purposes but it forces me to change the enitre design of my system.
Are there any other alternatives which would solve this purpose? Any help is highly appreciated.
files
edited Apr 30 '14 at 6:16
girardengo
3,8021627
asked Apr 30 '14 at 6:10
user3168180user3168180
112
add a comment |
How to automate the process of executing a command upon creation of a file.
I have an application wherein a tool generates an xsd schema from a xml file. My next module uses this xsd schema for further processing.
I want to automate this process i.e. to run a command once the file is generated. This application will run everyday on ubuntu machine so I want to automate it. I don't want any human intervention in this process.
I did search inotify lib which is used for similar purposes but it forces me to change the enitre design of my system.
Are there any other alternatives which would solve this purpose? Any help is highly appreciated.
files
edited Apr 30 '14 at 6:16
girardengo
3,8021627
asked Apr 30 '14 at 6:10
user3168180user3168180
112
add a comment |
How to automate the process of executing a command upon creation of a file.
I have an application wherein a tool generates an xsd schema from a xml file. My next module uses this xsd schema for further processing.
I want to automate this process i.e. to run a command once the file is generated. This application will run everyday on ubuntu machine so I want to automate it. I don't want any human intervention in this process.
I did search inotify lib which is used for similar purposes but it forces me to change the enitre design of my system.
Are there any other alternatives which would solve this purpose? Any help is highly appreciated.
files
edited Apr 30 '14 at 6:16
girardengo
3,8021627
asked Apr 30 '14 at 6:10
user3168180user3168180
112
How to automate the process of executing a command upon creation of a file.
I have an application wherein a tool generates an xsd schema from a xml file. My next module uses this xsd schema for further processing.
I want to automate this process i.e. to run a command once the file is generated. This application will run everyday on ubuntu machine so I want to automate it. I don't want any human intervention in this process.
I did search inotify lib which is used for similar purposes but it forces me to change the enitre design of my system.
Are there any other alternatives which would solve this purpose? Any help is highly appreciated.
files
files
edited Apr 30 '14 at 6:16
girardengo
3,8021627
asked Apr 30 '14 at 6:10
user3168180user3168180
112
edited Apr 30 '14 at 6:16
girardengo
3,8021627
asked Apr 30 '14 at 6:10
user3168180user3168180
112
edited Apr 30 '14 at 6:16
girardengo
3,8021627
edited Apr 30 '14 at 6:16
girardengo
3,8021627
edited Apr 30 '14 at 6:16
girardengo
3,8021627
3,8021627
asked Apr 30 '14 at 6:10
user3168180user3168180
112
asked Apr 30 '14 at 6:10
user3168180user3168180
112
asked Apr 30 '14 at 6:10
user3168180user3168180
112
112
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Figuring out when the file is finished being written is the hard part. It is best to use a script like:
#!/bin/sh
program-that-creates-xsd
program-that-does-further-processing
There really aren't any good solutions if you can't structure your program like this. Even with inotify, it is nearly impossible to tell when the XSD is truly finished.
answered Apr 30 '14 at 6:24
mswmsw
4,19611826
add a comment |
Detecting file creation in a specific folder can be done via inotifywait which is part of inotify-tools package installable via sudo apt-get install inotify-tools.
As an example, we can establish a continuous watch (-m flag) on directory Desktop and parse the output for created directory entries, however determining if a file is regular file and filename is the one we need has to be done manually:
inotifywait -m --format "%f" -e create ./Desktop/ |
while read -r fname; do
[ -f ./Desktop/"$fname" ] && [ "$fname" = "specific.csv" ] && echo "We got 'em!"
done
So in case someone makes directory specific.csv that should be rejected, but if specific.csv is created we will execute echo portion, which could be replaced with other commands or shell functions. If you do need a non-blocking execution, you might consider adding setsid to start the command in new session and let the script continue watching.
answered 2 hours ago
Sergiy KolodyazhnyySergiy Kolodyazhnyy
72.8k9152316
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
Figuring out when the file is finished being written is the hard part. It is best to use a script like:
#!/bin/sh
program-that-creates-xsd
program-that-does-further-processing
There really aren't any good solutions if you can't structure your program like this. Even with inotify, it is nearly impossible to tell when the XSD is truly finished.
answered Apr 30 '14 at 6:24
mswmsw
4,19611826
add a comment |
Figuring out when the file is finished being written is the hard part. It is best to use a script like:
#!/bin/sh
program-that-creates-xsd
program-that-does-further-processing
There really aren't any good solutions if you can't structure your program like this. Even with inotify, it is nearly impossible to tell when the XSD is truly finished.
answered Apr 30 '14 at 6:24
mswmsw
4,19611826
add a comment |
Figuring out when the file is finished being written is the hard part. It is best to use a script like:
#!/bin/sh
program-that-creates-xsd
program-that-does-further-processing
There really aren't any good solutions if you can't structure your program like this. Even with inotify, it is nearly impossible to tell when the XSD is truly finished.
answered Apr 30 '14 at 6:24
mswmsw
4,19611826
Figuring out when the file is finished being written is the hard part. It is best to use a script like:
#!/bin/sh
program-that-creates-xsd
program-that-does-further-processing
There really aren't any good solutions if you can't structure your program like this. Even with inotify, it is nearly impossible to tell when the XSD is truly finished.
answered Apr 30 '14 at 6:24
mswmsw
4,19611826
answered Apr 30 '14 at 6:24
mswmsw
4,19611826
answered Apr 30 '14 at 6:24
mswmsw
4,19611826
answered Apr 30 '14 at 6:24
mswmsw
4,19611826
4,19611826
add a comment |
add a comment |
Detecting file creation in a specific folder can be done via inotifywait which is part of inotify-tools package installable via sudo apt-get install inotify-tools.
As an example, we can establish a continuous watch (-m flag) on directory Desktop and parse the output for created directory entries, however determining if a file is regular file and filename is the one we need has to be done manually:
inotifywait -m --format "%f" -e create ./Desktop/ |
while read -r fname; do
[ -f ./Desktop/"$fname" ] && [ "$fname" = "specific.csv" ] && echo "We got 'em!"
done
So in case someone makes directory specific.csv that should be rejected, but if specific.csv is created we will execute echo portion, which could be replaced with other commands or shell functions. If you do need a non-blocking execution, you might consider adding setsid to start the command in new session and let the script continue watching.
answered 2 hours ago
Sergiy KolodyazhnyySergiy Kolodyazhnyy
72.8k9152316
add a comment |
Detecting file creation in a specific folder can be done via inotifywait which is part of inotify-tools package installable via sudo apt-get install inotify-tools.
As an example, we can establish a continuous watch (-m flag) on directory Desktop and parse the output for created directory entries, however determining if a file is regular file and filename is the one we need has to be done manually:
inotifywait -m --format "%f" -e create ./Desktop/ |
while read -r fname; do
[ -f ./Desktop/"$fname" ] && [ "$fname" = "specific.csv" ] && echo "We got 'em!"
done
So in case someone makes directory specific.csv that should be rejected, but if specific.csv is created we will execute echo portion, which could be replaced with other commands or shell functions. If you do need a non-blocking execution, you might consider adding setsid to start the command in new session and let the script continue watching.
answered 2 hours ago
Sergiy KolodyazhnyySergiy Kolodyazhnyy
72.8k9152316
add a comment |
Detecting file creation in a specific folder can be done via inotifywait which is part of inotify-tools package installable via sudo apt-get install inotify-tools.
As an example, we can establish a continuous watch (-m flag) on directory Desktop and parse the output for created directory entries, however determining if a file is regular file and filename is the one we need has to be done manually:
inotifywait -m --format "%f" -e create ./Desktop/ |
while read -r fname; do
[ -f ./Desktop/"$fname" ] && [ "$fname" = "specific.csv" ] && echo "We got 'em!"
done
So in case someone makes directory specific.csv that should be rejected, but if specific.csv is created we will execute echo portion, which could be replaced with other commands or shell functions. If you do need a non-blocking execution, you might consider adding setsid to start the command in new session and let the script continue watching.
answered 2 hours ago
Sergiy KolodyazhnyySergiy Kolodyazhnyy
72.8k9152316
Detecting file creation in a specific folder can be done via inotifywait which is part of inotify-tools package installable via sudo apt-get install inotify-tools.
As an example, we can establish a continuous watch (-m flag) on directory Desktop and parse the output for created directory entries, however determining if a file is regular file and filename is the one we need has to be done manually:
inotifywait -m --format "%f" -e create ./Desktop/ |
while read -r fname; do
[ -f ./Desktop/"$fname" ] && [ "$fname" = "specific.csv" ] && echo "We got 'em!"
done
So in case someone makes directory specific.csv that should be rejected, but if specific.csv is created we will execute echo portion, which could be replaced with other commands or shell functions. If you do need a non-blocking execution, you might consider adding setsid to start the command in new session and let the script continue watching.
answered 2 hours ago
Sergiy KolodyazhnyySergiy Kolodyazhnyy
72.8k9152316
answered 2 hours ago
Sergiy KolodyazhnyySergiy Kolodyazhnyy
72.8k9152316
answered 2 hours ago
Sergiy KolodyazhnyySergiy Kolodyazhnyy
72.8k9152316
answered 2 hours ago
Sergiy KolodyazhnyySergiy Kolodyazhnyy
72.8k9152316
72.8k9152316
add a comment |
add a comment |
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