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Install mysql 57 on OS Oracle Linux 6.9: Error: Package

On OS Oracle Linux I’ve tried to install, MySQL community server 5.7 running the commands below: It returned the following error: Error: Package: mysql-community-client-5.7.19-1.el7.x86_64 (mysql57-community) Requires: libc.so.6(GLIBC_2.14)(64bit) Error: Package: perl-DBD-MySQL-4.013-3.el6.x86_64 (@publ…

ls -al output column fields

Can someone guide me what does each column of ls -ali output in linux describe? Answer ls -ali something like this -a, –all do not ignore entries starting with . -i, –inode print the index number of each file inode, authority, num ,user,group, size , date file name you can use “man ls”…

How to remove temp file in ansible using copy module

I’m using adhoc command for example After copy in the remote host. I found temp files in the directory ~/.ansible/tmp How to remove this temp directory on remote host? Using another module like “commmand” ? In the reference of copy ansible module i did not found about remove temp file after …

ack outputs nothing using crontab in linux

ack outputs nothing using crontab in linux. In the crontab file (edited with sudo crontab -e): And cat /ext/test110.sh will show After cron, there are 1.t and 2.t in /ext cat 2.t will output /usr/bin/ack; However, nothing in 1.t. If I run ack “localhost” /etc/hosts > /ext/3.t in bash (4.3.30) o…

Know who is the inheritor while debugging core dumps with GDB

My process has crashed, and I have a core dump. I see that the process crashed while running a code similar to that : I have a full call stack in the core dump, but I don’t know who is the inheritor that runs the “func”. Is there a way to figure it out (maybe by some pointer calculation tric…