Getting error in invalid number of arguments when deleting large number of files in directory ?
The error is due to bash shell has a limit of 2621440 to the number of arguments you can pass to a command. This can be verified by,
[root@hostab ~]# getconf ARG_MAX
2621440
Solution to this problem is to use the find command along with xargs,
cd to the directory where you want to delete files and run below command
find . -name ‘*’ |xargs rm
Facing issues in Virtualizor for database crash ? The mysql library is not located in normal /var/lib/mysql it located in /usr/local/emps/bin/
To repair database you need to use below command
[root@hostabc.virtualizor]# /usr/local/emps/bin/myisamchk -r *.MYI
Once completed all things should back to normal 🙂
You may have comes across situation where you have to manually edit a single file using excel or words to remove the space between words which is taking consuming and Boring 🙂
The below command can do the trick in one command to save your day
cat 116.txt | sed -e ‘s/[\t ]//g;/^$/d’ > test12
116.txt is the input file which has spaces between words
sed -e ‘s/[\t ]//g;/^$/d’ is the command to clear space in words
If you have entered command reboot and machine is not rebooting even after extended time
You can use below command to restart the server immediately which is equivalent to pressing a restart button physically.
# echo 1 > /proc/sys/kernel/sysrq
#echo b > /proc/sysrq-trigger