Ryfujk

For what reasons would an animal species NOT cross a *horizontal* land bridge?

What aspect of planet Earth must be changed to prevent the industrial revolution?

How do spell lists change if the party levels up without taking a long rest?

How do I design a circuit to convert a 100 mV and 50 Hz sine wave to a square wave?

Student Loan from years ago pops up and is taking my salary

How to politely respond to generic emails requesting a PhD/job in my lab? Without wasting too much time

Can the Right Ascension and Argument of Perigee of a spacecraft's orbit keep varying by themselves with time?

Drawing vertical/oblique lines in Metrical tree (tikz-qtree, tipa)

Word for: a synonym with a positive connotation?

Is this wall load bearing? Blueprints and photos attached

How to make Illustrator type tool selection automatically adapt with text length

Windows 10: How to Lock (not sleep) laptop on lid close?

"is" operation returns false even though two objects have same id

Do I have Disadvantage attacking with an off-hand weapon?

Can withdrawing asylum be illegal?

Did the new image of black hole confirm the general theory of relativity?

Didn't get enough time to take a Coding Test - what to do now?

What to do when moving next to a bird sanctuary with a loosely-domesticated cat?

What other Star Trek series did the main TNG cast show up in?

Identify 80s or 90s comics with ripped creatures (not dwarves)

Define a list range inside a list

Why can't devices on different VLANs, but on the same subnet, communicate?

Is there a writing software that you can sort scenes like slides in PowerPoint?

Huge performance difference of the command find with and without using %M option to show permissions

curl bash script works fine in shell but not work in cronjob

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}

0

I have a script using curl to do the job and set into crontabs.
Things were fine on redhat 7.5+ or CentOS 7.

But in redhat 7.2, the script turned into a junk and never output a thing from the curl results.

OUTPUT=/tmp/apm.log; touch $OUTPUT && truncate -s 0 $OUTPUT

[[ -f tmp/curl.tmp ]] && rm -f /tmp/curl.tmp

curl -s --connect-timeout 2 -XGET "http://www.google.com" -H Content- Type:application/json -d @/tmp/apm.json -o /tmp/curl.tmp

cat /tmp/curl.tmp >> $OUTPUT

echo >> $OUTPUT

Result: the script runs normally under shell, but does not run in cronjob. The /tmp/curl.tmp is generated but the $OUTPUT /tmp/apm.log is size 0.
After trial tests overnight, I found a potential solution.

OUTPUT=/tmp/apm.log; touch $OUTPUT && truncate -s 0 $OUTPUT

[[ -f tmp/curl.tmp ]] && rm -f /tmp/curl.tmp

curl -s --connect-timeout 2 -XGET "http://www.google.com" -H Content- Type:application/json -d @/tmp/apm.json -o /tmp/curl.tmp



while :

do

[ -f /tmp/curl.tmp ] && break

sleep 1

done**



cat /tmp/curl.tmp >> $OUTPUT

echo >> $OUTPUT

I added a while loop after curl to wait for the determination of the output file, following steps are not processed until the file is found. The script then can run normally as expected in cronjob.

It appears that the cron environment does not wait for the curl to finish it's task. So my question is, how can that be fixed ?

Red Hat Enterprise Linux Server 7.2 (Maipo)

CPE OS Name: cpe:/o:redhat:enterprise_linux:7.2:GA:server

Kernel: Linux 3.10.0-327.el7.x86_64

Architecture: x86-64



curl 7.29.0 (x86_64-redhat-linux-gnu) libcurl/7.29.0 NSS/3.16.2.3 Basic ECC 

zlib/1.2.7 libidn/1.28 libssh2/1.4.3

Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 

pop3s rtsp scp sftp smtp smtps telnet tftp

Features: AsynchDNS GSS-Negotiate IDN IPv6 Largefile NTLM NTLM_WB SSL lib

bash cron curl

share

asked 7 mins ago

Yeats RawYeats Raw

1

New contributor

Yeats Raw is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

0

I have a script using curl to do the job and set into crontabs.
Things were fine on redhat 7.5+ or CentOS 7.

But in redhat 7.2, the script turned into a junk and never output a thing from the curl results.

OUTPUT=/tmp/apm.log; touch $OUTPUT && truncate -s 0 $OUTPUT

[[ -f tmp/curl.tmp ]] && rm -f /tmp/curl.tmp

curl -s --connect-timeout 2 -XGET "http://www.google.com" -H Content- Type:application/json -d @/tmp/apm.json -o /tmp/curl.tmp

cat /tmp/curl.tmp >> $OUTPUT

echo >> $OUTPUT

Result: the script runs normally under shell, but does not run in cronjob. The /tmp/curl.tmp is generated but the $OUTPUT /tmp/apm.log is size 0.
After trial tests overnight, I found a potential solution.

OUTPUT=/tmp/apm.log; touch $OUTPUT && truncate -s 0 $OUTPUT

[[ -f tmp/curl.tmp ]] && rm -f /tmp/curl.tmp

curl -s --connect-timeout 2 -XGET "http://www.google.com" -H Content- Type:application/json -d @/tmp/apm.json -o /tmp/curl.tmp



while :

do

[ -f /tmp/curl.tmp ] && break

sleep 1

done**



cat /tmp/curl.tmp >> $OUTPUT

echo >> $OUTPUT

I added a while loop after curl to wait for the determination of the output file, following steps are not processed until the file is found. The script then can run normally as expected in cronjob.

It appears that the cron environment does not wait for the curl to finish it's task. So my question is, how can that be fixed ?

Red Hat Enterprise Linux Server 7.2 (Maipo)

CPE OS Name: cpe:/o:redhat:enterprise_linux:7.2:GA:server

Kernel: Linux 3.10.0-327.el7.x86_64

Architecture: x86-64



curl 7.29.0 (x86_64-redhat-linux-gnu) libcurl/7.29.0 NSS/3.16.2.3 Basic ECC 

zlib/1.2.7 libidn/1.28 libssh2/1.4.3

Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 

pop3s rtsp scp sftp smtp smtps telnet tftp

Features: AsynchDNS GSS-Negotiate IDN IPv6 Largefile NTLM NTLM_WB SSL lib

bash cron curl

share

asked 7 mins ago

Yeats RawYeats Raw

1

New contributor

Yeats Raw is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I have a script using curl to do the job and set into crontabs.
Things were fine on redhat 7.5+ or CentOS 7.

But in redhat 7.2, the script turned into a junk and never output a thing from the curl results.

OUTPUT=/tmp/apm.log; touch $OUTPUT && truncate -s 0 $OUTPUT

[[ -f tmp/curl.tmp ]] && rm -f /tmp/curl.tmp

curl -s --connect-timeout 2 -XGET "http://www.google.com" -H Content- Type:application/json -d @/tmp/apm.json -o /tmp/curl.tmp

cat /tmp/curl.tmp >> $OUTPUT

echo >> $OUTPUT

Result: the script runs normally under shell, but does not run in cronjob. The /tmp/curl.tmp is generated but the $OUTPUT /tmp/apm.log is size 0.
After trial tests overnight, I found a potential solution.

OUTPUT=/tmp/apm.log; touch $OUTPUT && truncate -s 0 $OUTPUT

[[ -f tmp/curl.tmp ]] && rm -f /tmp/curl.tmp

curl -s --connect-timeout 2 -XGET "http://www.google.com" -H Content- Type:application/json -d @/tmp/apm.json -o /tmp/curl.tmp



while :

do

[ -f /tmp/curl.tmp ] && break

sleep 1

done**



cat /tmp/curl.tmp >> $OUTPUT

echo >> $OUTPUT

I added a while loop after curl to wait for the determination of the output file, following steps are not processed until the file is found. The script then can run normally as expected in cronjob.

It appears that the cron environment does not wait for the curl to finish it's task. So my question is, how can that be fixed ?

Red Hat Enterprise Linux Server 7.2 (Maipo)

CPE OS Name: cpe:/o:redhat:enterprise_linux:7.2:GA:server

Kernel: Linux 3.10.0-327.el7.x86_64

Architecture: x86-64



curl 7.29.0 (x86_64-redhat-linux-gnu) libcurl/7.29.0 NSS/3.16.2.3 Basic ECC 

zlib/1.2.7 libidn/1.28 libssh2/1.4.3

Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 

pop3s rtsp scp sftp smtp smtps telnet tftp

Features: AsynchDNS GSS-Negotiate IDN IPv6 Largefile NTLM NTLM_WB SSL lib

bash cron curl

share

asked 7 mins ago

Yeats RawYeats Raw

1

New contributor

Yeats Raw is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

OUTPUT=/tmp/apm.log; touch $OUTPUT && truncate -s 0 $OUTPUT

[[ -f tmp/curl.tmp ]] && rm -f /tmp/curl.tmp

curl -s --connect-timeout 2 -XGET "http://www.google.com" -H Content- Type:application/json -d @/tmp/apm.json -o /tmp/curl.tmp

cat /tmp/curl.tmp >> $OUTPUT

echo >> $OUTPUT

OUTPUT=/tmp/apm.log; touch $OUTPUT && truncate -s 0 $OUTPUT

[[ -f tmp/curl.tmp ]] && rm -f /tmp/curl.tmp

curl -s --connect-timeout 2 -XGET "http://www.google.com" -H Content- Type:application/json -d @/tmp/apm.json -o /tmp/curl.tmp



while :

do

[ -f /tmp/curl.tmp ] && break

sleep 1

done**



cat /tmp/curl.tmp >> $OUTPUT

echo >> $OUTPUT

Red Hat Enterprise Linux Server 7.2 (Maipo)

CPE OS Name: cpe:/o:redhat:enterprise_linux:7.2:GA:server

Kernel: Linux 3.10.0-327.el7.x86_64

Architecture: x86-64



curl 7.29.0 (x86_64-redhat-linux-gnu) libcurl/7.29.0 NSS/3.16.2.3 Basic ECC 

zlib/1.2.7 libidn/1.28 libssh2/1.4.3

Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 

pop3s rtsp scp sftp smtp smtps telnet tftp

Features: AsynchDNS GSS-Negotiate IDN IPv6 Largefile NTLM NTLM_WB SSL lib

share

asked 7 mins ago

Yeats RawYeats Raw

1

New contributor

Yeats Raw is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

asked 7 mins ago

Yeats RawYeats Raw

1

New contributor

Yeats Raw is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 7 mins ago

Yeats RawYeats Raw

1

New contributor

Yeats Raw is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 7 mins ago

Yeats RawYeats Raw

1