linux:pipe
 
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linux:pipe [2020/09/16 11:24] – [Execution Dependency] tmadelinux:pipe [2022/02/16 04:34] – [Error-handling] tmade
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   ls /opt/ /otherfile > file 2>&1          #Redirect standard error output and standard output and to "file"   ls /opt/ /otherfile > file 2>&1          #Redirect standard error output and standard output and to "file"
 +  sudo -lU ${USER} > /dev/null 2>&1        #Redirect standard error output and standard output and to "/dev/null"
 +  ls /opt /otherfile 2> /dev/null          #Redirect standard error output to /dev/null       
   programm &> file                         #Redirect stdout AND stderr to "file"   programm &> file                         #Redirect stdout AND stderr to "file"
   echo "This is a test" 1> /dev/null       #Redirects standard output to /dev/null   echo "This is a test" 1> /dev/null       #Redirects standard output to /dev/null
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 To check if a process is running/ return code: To check if a process is running/ return code:
  
-SERVICE_NAME=apache2 +  SERVICE_NAME=apache2 
-  +
   (ps -ef | grep $SERVICE_NAME  | grep -v grep && echo "$SERVICE_NAME is running") || echo "$SERVICE_NAME is not running"   (ps -ef | grep $SERVICE_NAME  | grep -v grep && echo "$SERVICE_NAME is running") || echo "$SERVICE_NAME is not running"
   ps -ef | grep $SERVICE_NAME | grep -v grep && RESULT=running || RESULT=error   ps -ef | grep $SERVICE_NAME | grep -v grep && RESULT=running || RESULT=error
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 </code> </code>
   innobackupex --apply-log $TARGET_FOLDER && /bin/echo "`/bin/date +'%d-%m-%Y %H:%M:%S'`: Backup successful." >> $BACKUPLOG || /bin/echo "`/bin/date +'%d-%m-%Y %H:%M:%S'`: Backup failed." >> $ERRLOGFILE   innobackupex --apply-log $TARGET_FOLDER && /bin/echo "`/bin/date +'%d-%m-%Y %H:%M:%S'`: Backup successful." >> $BACKUPLOG || /bin/echo "`/bin/date +'%d-%m-%Y %H:%M:%S'`: Backup failed." >> $ERRLOGFILE
-   
-  cp -a $(ls /var/log/nginx/*access.log.* | grep -E 'access\.log\.[1-3](\.gz)?$') /mnt/serverlogs/lb-web/ 
      
 ==== Pipe to a programm ==== ==== Pipe to a programm ====
linux/pipe.txt · Last modified: 2022/02/16 04:34 by tmade
 
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