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Tuesday, 22 December 2009 09:10 |
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This how to shows how to enable root log in on fedora GUI Desktop.
- Open Terminal from Applications -> System Tools
- Type
su - and then insert root pasword
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Thursday, 03 December 2009 12:50 |
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To View a port number type in terminal
for full list:
cat /etc/services
for one you need:
cat /etc/services | grep (port number or service)
View /etc/services file.
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Thursday, 03 December 2009 12:40 |
UNIX, Linux Date and Time Set Date
Set the system time date
# date -s "7 Jul 2008 16:15:00"
Set time hardware
# hwclock --set --date "04 Jul 2008 00:43"
Set linux system clock to hardware clock
# hwclock --utc --systohc
Configure timezone
# timeconfig
Date Sync
Sync time date with time.nyst.gov
# /usr/sbin/ntpdate 192.43.244.18
# /usr/sbin/ntpdate pool.ntp.org
# hwclock --systohc
new option. check it!
# /sbin/service ntpd stop
# /sbin/hwclock -w
# /sbin/service ntpd start
Get Date
Get date and time
# date
# date - u
Get CMOS date time
# hwclock
Show calendar
# cal -1
Get hardware date time
# hwclock
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Thursday, 03 December 2009 12:35 |
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Append "Hello" to /hello.txt
# echo "Hello" >> /hello.txt
Replace /hello.txt and put the "Hello" into the /hello.txt # echo "Hello" > /hello.txt
Show file info
# wc /root/anaconda-ks.cfg
Delete file(s)
# rm *.txt
# rm lala.txt
Create text file
# touch /tmp/myfile
Show current path
# pwd
Show full path of application
# which php
# which ffmpeg
# which httpd
Copy file
cp /root/install.log /root/other/install.log
Move file
# mv ~/root/new-wirks/myfile ~/root/old-work
List files
# ls -la /etc | more
List files partly, for close press "q"
# ls -la /etc | more
Find file where name like "log"
# find / | grep log
Show last 10 lines of the file
# tail /var/log/messages
Show first 10 lines of the file
# head /var/log/messages
Create diretcory
# mkdir mydir
Mount cd-rom
# mkdir /cdrom
# mount /dev/cdrom /cdrom
List files and folder of current folder
# du -h
Show size of current folder
# du -sh
List "/root" files to "/thefiles" file
# du /root >> /thefiles
Get directory total size
# du -ch /home/rommel/bachup | grep total
Change file mode
# chmod 777 kkk.txt
Change directory mode recursive (with subfolders)
# chmod 777 mydir -R
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Thursday, 03 December 2009 12:28 |
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Install HDD Temperature.
# yum install hddtemp
Show hdd temperature
# hddtemp /dev/sda
/dev/sda = hdd1, /dev/sdb = hdd2
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