How to make secure backup in Ubuntu Linux The 2019 Stack Overflow Developer Survey Results Are InRun an application at each system boot in Arch LinuxHow to programmatically add new crontab file without replacing previous oneHow can I configure scheduled virtual machine backup?crond: sendmail error while running a python script in crontabBeginner Linux user! Having trouble with cronCrontab is deleting my jobs or reverting to a previous state?Scheduled folder backup/bin/crontab and /usr/sbin/cron in cygwin - what is the difference?How to store backup outside home directoryCron log shows shell script has run but it really hasn't
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How to make secure backup in Ubuntu Linux
The 2019 Stack Overflow Developer Survey Results Are InRun an application at each system boot in Arch LinuxHow to programmatically add new crontab file without replacing previous oneHow can I configure scheduled virtual machine backup?crond: sendmail error while running a python script in crontabBeginner Linux user! Having trouble with cronCrontab is deleting my jobs or reverting to a previous state?Scheduled folder backup/bin/crontab and /usr/sbin/cron in cygwin - what is the difference?How to store backup outside home directoryCron log shows shell script has run but it really hasn't
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I tried to understand the code but I have some difficulties in it.crontab -e is crontab schedule formatpm 9pm at night every Sunday,
but it seem to me it is encrypted.
Can any one explain it?
Crontab -e 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1
linux ubuntu cron
edited yesterday
G-Man
13.7k93870
asked 2 days ago
user346408user346408
11
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user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
I tried to understand the code but I have some difficulties in it.crontab -e is crontab schedule formatpm 9pm at night every Sunday,
but it seem to me it is encrypted.
Can any one explain it?
Crontab -e 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1
linux ubuntu cron
edited yesterday
G-Man
13.7k93870
asked 2 days ago
user346408user346408
11
New contributor
user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I tried to understand the code but I have some difficulties.... this does not describe the difficulties in any way ........ what are you trying to accomplish?
– jsotola
2 days ago
something like 2>&1 what does it mean and also /dev/null and also $USER i understand that the code wile make schedule -p pass0rd it is optional /var/backup/secure.zip here it it means we make new file called secure.zip
– user346408
2 days ago
1
What exactly is your question?How to make secure backup in Ubuntu Linuxor to understand the command mentioned in your post? For the first one, there are lots of answers, for the second one, just typeman crontab.
– Mike V.D.C.
yesterday
add a comment |
I tried to understand the code but I have some difficulties in it.crontab -e is crontab schedule formatpm 9pm at night every Sunday,
but it seem to me it is encrypted.
Can any one explain it?
Crontab -e 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1
linux ubuntu cron
edited yesterday
G-Man
13.7k93870
asked 2 days ago
user346408user346408
11
New contributor
user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I tried to understand the code but I have some difficulties in it.crontab -e is crontab schedule formatpm 9pm at night every Sunday,
but it seem to me it is encrypted.
Can any one explain it?
Crontab -e 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1
linux ubuntu cron
linux ubuntu cron
edited yesterday
G-Man
13.7k93870
asked 2 days ago
user346408user346408
11
New contributor
user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
G-Man
13.7k93870
asked 2 days ago
user346408user346408
11
New contributor
user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
G-Man
13.7k93870
edited yesterday
G-Man
13.7k93870
edited yesterday
G-Man
13.7k93870
13.7k93870
asked 2 days ago
user346408user346408
11
New contributor
user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
user346408user346408
11
asked 2 days ago
user346408user346408
11
11
New contributor
user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
user346408 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I tried to understand the code but I have some difficulties.... this does not describe the difficulties in any way ........ what are you trying to accomplish?
– jsotola
2 days ago
something like 2>&1 what does it mean and also /dev/null and also $USER i understand that the code wile make schedule -p pass0rd it is optional /var/backup/secure.zip here it it means we make new file called secure.zip
– user346408
2 days ago
1
What exactly is your question?How to make secure backup in Ubuntu Linuxor to understand the command mentioned in your post? For the first one, there are lots of answers, for the second one, just typeman crontab.
– Mike V.D.C.
yesterday
add a comment |
I tried to understand the code but I have some difficulties.... this does not describe the difficulties in any way ........ what are you trying to accomplish?
– jsotola
2 days ago
something like 2>&1 what does it mean and also /dev/null and also $USER i understand that the code wile make schedule -p pass0rd it is optional /var/backup/secure.zip here it it means we make new file called secure.zip
– user346408
2 days ago
1
What exactly is your question?How to make secure backup in Ubuntu Linuxor to understand the command mentioned in your post? For the first one, there are lots of answers, for the second one, just typeman crontab.
– Mike V.D.C.
yesterday
I tried to understand the code but I have some difficulties .... this does not describe the difficulties in any way ........ what are you trying to accomplish?– jsotola
2 days ago
I tried to understand the code but I have some difficulties .... this does not describe the difficulties in any way ........ what are you trying to accomplish?– jsotola
2 days ago
something like 2>&1 what does it mean and also /dev/null and also $USER i understand that the code wile make schedule -p pass0rd it is optional /var/backup/secure.zip here it it means we make new file called secure.zip
– user346408
2 days ago
something like 2>&1 what does it mean and also /dev/null and also $USER i understand that the code wile make schedule -p pass0rd it is optional /var/backup/secure.zip here it it means we make new file called secure.zip
– user346408
2 days ago
1
1
What exactly is your question?
How to make secure backup in Ubuntu Linux or to understand the command mentioned in your post? For the first one, there are lots of answers, for the second one, just type man crontab.– Mike V.D.C.
yesterday
What exactly is your question?
How to make secure backup in Ubuntu Linux or to understand the command mentioned in your post? For the first one, there are lots of answers, for the second one, just type man crontab.– Mike V.D.C.
yesterday
add a comment |
1 Answer
1
active
oldest
votes
The command crontab -e lets you edit your crontab and if you add the line 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1, save and exit your editor, then you have created a new entry that runs the command each Sunday at 9pm.
You can use crontab -l to display the content of your crontab on stdout without editing it.
The command creates a zip file /var/backup/secure.zip of the content of your home directory /home/$USER recursively (-r) and uses the password option -P passw0rd to encrypt it with password "passw0rd".
The >/dev/null 2>&1 at the end is used to prevent any output of the zip command to stdout and stderr to prevent cron from sending any mails (if successful or in the event of an error).
To unzip the zip file, you will have to enter the password if you use unzip secure.zip, or use unzip -P passw0rd secure.zip.
answered 2 days ago
FreddyFreddy
1,612210
1
How is this an answer???
– user5325
16 hours ago
@user5325 This is an answer explaining the crontab entry of the question and not "How to make a secure backup". In my opinion OP has chosen a bad title for the question. Is something wrong with the crontab explanation or why do I get the downvotes?
– Freddy
16 hours ago
add a comment |
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1 Answer
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votes
The command crontab -e lets you edit your crontab and if you add the line 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1, save and exit your editor, then you have created a new entry that runs the command each Sunday at 9pm.
You can use crontab -l to display the content of your crontab on stdout without editing it.
The command creates a zip file /var/backup/secure.zip of the content of your home directory /home/$USER recursively (-r) and uses the password option -P passw0rd to encrypt it with password "passw0rd".
The >/dev/null 2>&1 at the end is used to prevent any output of the zip command to stdout and stderr to prevent cron from sending any mails (if successful or in the event of an error).
To unzip the zip file, you will have to enter the password if you use unzip secure.zip, or use unzip -P passw0rd secure.zip.
answered 2 days ago
FreddyFreddy
1,612210
1
How is this an answer???
– user5325
16 hours ago
@user5325 This is an answer explaining the crontab entry of the question and not "How to make a secure backup". In my opinion OP has chosen a bad title for the question. Is something wrong with the crontab explanation or why do I get the downvotes?
– Freddy
16 hours ago
add a comment |
The command crontab -e lets you edit your crontab and if you add the line 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1, save and exit your editor, then you have created a new entry that runs the command each Sunday at 9pm.
You can use crontab -l to display the content of your crontab on stdout without editing it.
The command creates a zip file /var/backup/secure.zip of the content of your home directory /home/$USER recursively (-r) and uses the password option -P passw0rd to encrypt it with password "passw0rd".
The >/dev/null 2>&1 at the end is used to prevent any output of the zip command to stdout and stderr to prevent cron from sending any mails (if successful or in the event of an error).
To unzip the zip file, you will have to enter the password if you use unzip secure.zip, or use unzip -P passw0rd secure.zip.
answered 2 days ago
FreddyFreddy
1,612210
1
How is this an answer???
– user5325
16 hours ago
@user5325 This is an answer explaining the crontab entry of the question and not "How to make a secure backup". In my opinion OP has chosen a bad title for the question. Is something wrong with the crontab explanation or why do I get the downvotes?
– Freddy
16 hours ago
add a comment |
The command crontab -e lets you edit your crontab and if you add the line 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1, save and exit your editor, then you have created a new entry that runs the command each Sunday at 9pm.
You can use crontab -l to display the content of your crontab on stdout without editing it.
The command creates a zip file /var/backup/secure.zip of the content of your home directory /home/$USER recursively (-r) and uses the password option -P passw0rd to encrypt it with password "passw0rd".
The >/dev/null 2>&1 at the end is used to prevent any output of the zip command to stdout and stderr to prevent cron from sending any mails (if successful or in the event of an error).
To unzip the zip file, you will have to enter the password if you use unzip secure.zip, or use unzip -P passw0rd secure.zip.
answered 2 days ago
FreddyFreddy
1,612210
The command crontab -e lets you edit your crontab and if you add the line 0 21 * * 0 zip -P passw0rd -r /var/backup/secure.zip /home/$USER >/dev/null 2>&1, save and exit your editor, then you have created a new entry that runs the command each Sunday at 9pm.
You can use crontab -l to display the content of your crontab on stdout without editing it.
The command creates a zip file /var/backup/secure.zip of the content of your home directory /home/$USER recursively (-r) and uses the password option -P passw0rd to encrypt it with password "passw0rd".
The >/dev/null 2>&1 at the end is used to prevent any output of the zip command to stdout and stderr to prevent cron from sending any mails (if successful or in the event of an error).
To unzip the zip file, you will have to enter the password if you use unzip secure.zip, or use unzip -P passw0rd secure.zip.
answered 2 days ago
FreddyFreddy
1,612210
edited yesterday
answered 2 days ago
FreddyFreddy
1,612210
answered 2 days ago
FreddyFreddy
1,612210
answered 2 days ago
FreddyFreddy
1,612210
1,612210
1
How is this an answer???
– user5325
16 hours ago
@user5325 This is an answer explaining the crontab entry of the question and not "How to make a secure backup". In my opinion OP has chosen a bad title for the question. Is something wrong with the crontab explanation or why do I get the downvotes?
– Freddy
16 hours ago
add a comment |
1
How is this an answer???
– user5325
16 hours ago
@user5325 This is an answer explaining the crontab entry of the question and not "How to make a secure backup". In my opinion OP has chosen a bad title for the question. Is something wrong with the crontab explanation or why do I get the downvotes?
– Freddy
16 hours ago
1
1
How is this an answer???
– user5325
16 hours ago
How is this an answer???
– user5325
16 hours ago
@user5325 This is an answer explaining the crontab entry of the question and not "How to make a secure backup". In my opinion OP has chosen a bad title for the question. Is something wrong with the crontab explanation or why do I get the downvotes?
– Freddy
16 hours ago
@user5325 This is an answer explaining the crontab entry of the question and not "How to make a secure backup". In my opinion OP has chosen a bad title for the question. Is something wrong with the crontab explanation or why do I get the downvotes?
– Freddy
16 hours ago
add a comment |
user346408 is a new contributor. Be nice, and check out our Code of Conduct.
user346408 is a new contributor. Be nice, and check out our Code of Conduct.
user346408 is a new contributor. Be nice, and check out our Code of Conduct.
user346408 is a new contributor. Be nice, and check out our Code of Conduct.
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-cron, linux, ubuntu
I tried to understand the code but I have some difficulties.... this does not describe the difficulties in any way ........ what are you trying to accomplish?– jsotola
2 days ago
something like 2>&1 what does it mean and also /dev/null and also $USER i understand that the code wile make schedule -p pass0rd it is optional /var/backup/secure.zip here it it means we make new file called secure.zip
– user346408
2 days ago
1
What exactly is your question?
How to make secure backup in Ubuntu Linuxor to understand the command mentioned in your post? For the first one, there are lots of answers, for the second one, just typeman crontab.– Mike V.D.C.
yesterday