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You can execute the following command to add /bin, or whichever directory you need, to PATH. export PATH="$PATH:/bin" You can then add that line to .profile or .bashrc (if you use bash) to make sure that directory is included in your path each time you log in.


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Systemd is working with services and targets. Targets is the equivalent of runlevels, services is the equivalent of init scripts. Most of systemd configuration is located in /usr/lib/systemd, while standard init are in /etc/{init.d,rc*.d,inittab}. When an issue kicks in during the boot process (default are getty.target or graphical.target, you can get them ...


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the code pgrep -P $(pgrep supervisord) | xargs ps -o %mem,%cpu,cmd -p | awk '{memory+=$1;cpu+=$2} END {print memory,cpu}' will get only one child layer if u want to search for all processes that were derived from a main pid, use this code .. ps -o pid,ppid,pgid,comm,%cpu,%mem -u {user name} | {grep PID_PRINCIPAL} The pid of main processe is the PGID ...


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When you are getting permission denied errors on file access etc. for unknown reason, it might be related to SELinux. Especially when you see a period following permissions like drwxr-xr-x. shown by ls -l for the file/dir in question, they could be mislabeled (you can see it by ls -Z) and cause the problem. You should first check current SELinux mode by ...


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You need to import the schema for inetOrgPerson into slapd. I have no idea about OpenLDAP installation on CentOS 7, but if you have a file /etc/ldap/schema/inetorgperson.ldif and dynamic slapd configuration (/etc/ldap/slapd.d/), it might accept the following command (run as root). ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/ldap/schema/inetorgperson.ldif


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Black Chrome windows are often, but not always, a symptom of a version mismatch between the X11 video driver and the kernel video driver. I've found that, amongst the programs I use regularly, Chrome was by far the most sensitive to such mismatches. Such a mismatch usually happens after doing a partial system upgrade. Finishing the upgrade and rebooting (to ...


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Edit your /boot/grub2/grub.cfg configuration file. This is the file which contains the configurations for GRUB BootLoader. Add a Menu entry in grub menu to boot from your OS reside in P3. /etc/grub.d/custom_entry the menu entry will look something like this (Update with your disk number, partition number, linux image path, initrd path) (Follow the already ...



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