Search a pattern inside all files in current

ARUN Posted in LINUX COMMANDS, SEARCH COMMANDS
0

grep -rl pattern .

For example :

To search for each line under the current directory for the word “Hacked”
grep -rl Hacked .

To make a file of 10mb size

ARUN Posted in LINUX COMMANDS
0

dd if=/dev/zero of=testfile_10MB bs=10485760 count=1

OR

seq 10 600000 >> file1.txt         > create a 4MB file

To view inode usage

ARUN Posted in LINUX COMMANDS
0

df -i

To view processor info

ARUN Posted in LINUX COMMANDS, VERSION CHECK
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cat /proc/cpuinfo

or

grep proc /proc/cpuinfo

Gives Processor count
grep proc /proc/cpuinfo |wc -l

Command to create a folder and then another folder inside that.

ARUN Posted in LINUX COMMANDS
0

mkdir -p /data/db

To set permission 755 for folders and 644 for files

ARUN Posted in LINUX COMMANDS
0
find /home/*/public_html/ -type d -perm 0777 > /root/arun_777d.txt   –> TO FIND THE FOLDERS having 777 permission

find . -type f -exec chmod 644 {} \;
find . -type d -exec chmod 755 {} \;

OR

for i in `cat /etc/trueuserdomains| awk {‘print $2′}`; do find /home/$i/public_html -type f -exec chmod 644 {} \;; find /home/$i/public_html -type d -exec chmod 755 {} \;; done