Find and sort all files by size, save results to a text file on a Linux system

Find and order all files by size, save the result to a text file on a Linux system

du -k | sort -nr | awk '
     BEGIN {
        split("KB,MB,GB,TB", Units, ",");
     }
     {
        u = 1;
        while ($1 >= 1024) {
           $1 = $1 / 1024;
           u += 1
        }
        $1 = sprintf("%.1f %s", $1, Units[u]);
        print $0;
     }
    ' > result_list_ordered.txt

Find files by modification date, within a modified by date range on Linux

Find files modified within a date range


Use these commands

touch --date "2013-04-29" /tmp/start
touch --date "2013-05-1" /tmp/end
find -type f -newer /tmp/start -not -newer /tmp/end

Search or find all users on a Linux system

List all users on a Linux OS

Try one of these:

# cut -d: -f1 /etc/passwd
# cat /etc/passwd | cut -d ":" -f1

Got other ideas on how to do this? please leave a comment

Thanks!

Search files for a string in linux

Use grep
example, look for the text hsbc in the /srv/www/ location

# grep -r -l "hsbc" /srv/www/

Apache web service wont start after restart, apache2 error "Address already in use"

If you stopped or restarted the apache2 server service and it failed to start this article should help.

You might type the command: rcapache2 start

You might get an error like this:

Starting httpd2 (prefork) (98)Address already in use: make_sock: could not bind to address [::]:80
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
startproc:  exit status of parent of /usr/sbin/httpd2-prefork: 1               ...        failed


Try this:

Run each of these commands

for i in `ps auwx | grep -i nobody | awk {'print $2'}`; do kill -9 $i; done
for i in `lsof -i :80 | grep http | awk {' print $2'}`; do kill -9 $i; done
for i in `lsof -i :80 | grep http | awk {' print $2'}`; do kill -9 $i; done

then run
service httpd restart
or run
 rcapache2 start



Until next time
thanks

P.S. like anything else on this blog, the instructions are 'as is' and use art your own risk.