ip does not work / does not produce output when run with cron
I have a bash script in which I use the ip r command. When I run the script in bash it works but when cron runs it it does not.
This is the line in my script:
ping -q -w 1 -c 1 `ip r | grep -m 1 default | cut -d ' ' -f 3` >/dev/null || exit
To test that the ip r command is the problem I added notify-send "TEST $(ip r)" in front of that line. When I execute the script in bash it sends the notification with TEST and the output of ip r but when run with cron the notification only contains TEST.
linux bash cron
asked Dec 14 at 10:41
Alexander
1265
add a comment |
I have a bash script in which I use the ip r command. When I run the script in bash it works but when cron runs it it does not.
This is the line in my script:
ping -q -w 1 -c 1 `ip r | grep -m 1 default | cut -d ' ' -f 3` >/dev/null || exit
To test that the ip r command is the problem I added notify-send "TEST $(ip r)" in front of that line. When I execute the script in bash it sends the notification with TEST and the output of ip r but when run with cron the notification only contains TEST.
linux bash cron
asked Dec 14 at 10:41
Alexander
1265
@KamilMaciorowskiwhereis ipgivesip: /usr/sbin/ip /usr/share/man/man8/ip.8.gz. How do I find out what $PATH it is? Runningecho $PATHin bash prints/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/alex/.local/bin.
– Alexander
Dec 14 at 11:01
@KamilMaciorowski You were right, it was a problem with $PATH. I now added ` eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"` at the beginning of mycrontab -ecommand and now theip rworks in cron as well.
– Alexander
Dec 14 at 11:08
add a comment |
I have a bash script in which I use the ip r command. When I run the script in bash it works but when cron runs it it does not.
This is the line in my script:
ping -q -w 1 -c 1 `ip r | grep -m 1 default | cut -d ' ' -f 3` >/dev/null || exit
To test that the ip r command is the problem I added notify-send "TEST $(ip r)" in front of that line. When I execute the script in bash it sends the notification with TEST and the output of ip r but when run with cron the notification only contains TEST.
linux bash cron
asked Dec 14 at 10:41
Alexander
1265
I have a bash script in which I use the ip r command. When I run the script in bash it works but when cron runs it it does not.
This is the line in my script:
ping -q -w 1 -c 1 `ip r | grep -m 1 default | cut -d ' ' -f 3` >/dev/null || exit
To test that the ip r command is the problem I added notify-send "TEST $(ip r)" in front of that line. When I execute the script in bash it sends the notification with TEST and the output of ip r but when run with cron the notification only contains TEST.
linux bash cron
linux bash cron
asked Dec 14 at 10:41
Alexander
1265
asked Dec 14 at 10:41
Alexander
1265
asked Dec 14 at 10:41
Alexander
1265
asked Dec 14 at 10:41
Alexander
1265
asked Dec 14 at 10:41
Alexander
1265
1265
@KamilMaciorowskiwhereis ipgivesip: /usr/sbin/ip /usr/share/man/man8/ip.8.gz. How do I find out what $PATH it is? Runningecho $PATHin bash prints/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/alex/.local/bin.
– Alexander
Dec 14 at 11:01
@KamilMaciorowski You were right, it was a problem with $PATH. I now added ` eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"` at the beginning of mycrontab -ecommand and now theip rworks in cron as well.
– Alexander
Dec 14 at 11:08
add a comment |
@KamilMaciorowskiwhereis ipgivesip: /usr/sbin/ip /usr/share/man/man8/ip.8.gz. How do I find out what $PATH it is? Runningecho $PATHin bash prints/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/alex/.local/bin.
– Alexander
Dec 14 at 11:01
@KamilMaciorowski You were right, it was a problem with $PATH. I now added ` eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"` at the beginning of mycrontab -ecommand and now theip rworks in cron as well.
– Alexander
Dec 14 at 11:08
@KamilMaciorowski
whereis ip gives ip: /usr/sbin/ip /usr/share/man/man8/ip.8.gz. How do I find out what $PATH it is? Running echo $PATH in bash prints /usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/alex/.local/bin.– Alexander
Dec 14 at 11:01
@KamilMaciorowski
whereis ip gives ip: /usr/sbin/ip /usr/share/man/man8/ip.8.gz. How do I find out what $PATH it is? Running echo $PATH in bash prints /usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/alex/.local/bin.– Alexander
Dec 14 at 11:01
@KamilMaciorowski You were right, it was a problem with $PATH. I now added ` eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"` at the beginning of my
crontab -e command and now the ip r works in cron as well.– Alexander
Dec 14 at 11:08
@KamilMaciorowski You were right, it was a problem with $PATH. I now added ` eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"` at the beginning of my
crontab -e command and now the ip r works in cron as well.– Alexander
Dec 14 at 11:08
add a comment |
1 Answer
1
active
oldest
votes
The $PATH variable was not set when run with cron. So I ran echo $PATH in bash and then set the $PATH variable to that output in the crontab command.
For that I added
eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"
in crontab -e where everything after PATH= is the output of the command echo $PATH when run in bash.
answered Dec 14 at 11:13
Alexander
1265
3
Cumbersome, I think. Please see this answer. A line starting withPATH=should do.
– Kamil Maciorowski
Dec 14 at 11:31
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "3"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1383544%2fip-does-not-work-does-not-produce-output-when-run-with-cron%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The $PATH variable was not set when run with cron. So I ran echo $PATH in bash and then set the $PATH variable to that output in the crontab command.
For that I added
eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"
in crontab -e where everything after PATH= is the output of the command echo $PATH when run in bash.
answered Dec 14 at 11:13
Alexander
1265
3
Cumbersome, I think. Please see this answer. A line starting withPATH=should do.
– Kamil Maciorowski
Dec 14 at 11:31
add a comment |
The $PATH variable was not set when run with cron. So I ran echo $PATH in bash and then set the $PATH variable to that output in the crontab command.
For that I added
eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"
in crontab -e where everything after PATH= is the output of the command echo $PATH when run in bash.
answered Dec 14 at 11:13
Alexander
1265
3
Cumbersome, I think. Please see this answer. A line starting withPATH=should do.
– Kamil Maciorowski
Dec 14 at 11:31
add a comment |
The $PATH variable was not set when run with cron. So I ran echo $PATH in bash and then set the $PATH variable to that output in the crontab command.
For that I added
eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"
in crontab -e where everything after PATH= is the output of the command echo $PATH when run in bash.
answered Dec 14 at 11:13
Alexander
1265
The $PATH variable was not set when run with cron. So I ran echo $PATH in bash and then set the $PATH variable to that output in the crontab command.
For that I added
eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"
in crontab -e where everything after PATH= is the output of the command echo $PATH when run in bash.
answered Dec 14 at 11:13
Alexander
1265
answered Dec 14 at 11:13
Alexander
1265
answered Dec 14 at 11:13
Alexander
1265
answered Dec 14 at 11:13
Alexander
1265
1265
3
Cumbersome, I think. Please see this answer. A line starting withPATH=should do.
– Kamil Maciorowski
Dec 14 at 11:31
add a comment |
3
Cumbersome, I think. Please see this answer. A line starting withPATH=should do.
– Kamil Maciorowski
Dec 14 at 11:31
3
3
Cumbersome, I think. Please see this answer. A line starting with
PATH= should do.– Kamil Maciorowski
Dec 14 at 11:31
Cumbersome, I think. Please see this answer. A line starting with
PATH= should do.– Kamil Maciorowski
Dec 14 at 11:31
add a comment |
Thanks for contributing an answer to Super User!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1383544%2fip-does-not-work-does-not-produce-output-when-run-with-cron%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
@KamilMaciorowski
whereis ipgivesip: /usr/sbin/ip /usr/share/man/man8/ip.8.gz. How do I find out what $PATH it is? Runningecho $PATHin bash prints/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/alex/.local/bin.– Alexander
Dec 14 at 11:01
@KamilMaciorowski You were right, it was a problem with $PATH. I now added ` eval "export PATH=/usr/local/bin:/usr/bin:/usr/local/sbin :/usr/sbin:/home/alex/.local/bin"` at the beginning of my
crontab -ecommand and now theip rworks in cron as well.– Alexander
Dec 14 at 11:08