Linux timed execution shell script _crontab

1. View tasks [[email protected] oraclebacka]$ crontab-l

2. New task [[email protected] oraclebacka]$ CRONTAB-E

3, 14 points per day 40 execute/backup/oraclebacka/sh.sh script, log output to/backup/oraclebacka/shlog.txt

* * * */backup/oraclebacka/sh.sh &>>/backup/oraclebacka/shlog.txt

Problem

1,/bin/sh:/backup/oraclebacka/sh.sh:permission denied

Shell script does not have execute permission, chmod 755 sh.sh

2,/backup/oraclebacka/sh.sh:line 59:ctxlc:command not found
/backup/oraclebacka/sh.sh:line 67:sqlplus:command not found
/backup/oraclebacka/sh.sh:line 69:ctxlc:command not found
/backup/oraclebacka/sh.sh:line: [:: Integer expression expected
/backup/oraclebacka/sh.sh:line 106:sqlplus:command not found
/backup/oraclebacka/sh.sh:line 108: [:: Integer expression expected
/backup/oraclebacka/sh.sh:line 136: [:: Integer expression expected
/backup/oraclebacka/sh.sh:line 136: [:: Integer expression expected

You may have noticed in the example above that each command gives an absolute path. When using C R o N T a b run s H e l l
Script, the user will be given the absolute path of the script, set the appropriate environment variables. Remember, since it is the user to C R o n
By submitting these jobs, you need to provide all the required environment to C R o N. Do not assume that C R o N knows the desired special environment, it
actually don't know. So you have to make sure to provide all the necessary path and environment variables in the S H e L script, in addition to some automatic
Sets the global variable.

There are two ways to export or copy to/etc/profile inside a shell.

The first of these solutions:

To view the environment variables for a user running C R o N T a b task:. bash_profile file Vi/home/oracle/.bash_profile

Copy the export path Oracle_base oracle_home oracle_sid to the shell script and place it at the beginning of the shell script

In the shell script:

Export Oracle_base=/u01/oracle Export oracle_home=/u01/oracle/app/12.1.0

The second solution:

Copy the settings from the. bash_profile file to the/etc/profile file, but use the root user

Linux timed execution shell script _crontab