sed
sed command examples
When you copy a DOS file to Unix, you could find \r\n in the end of each
line. This example converts the DOS file format to Unix file format using sed
command.
$sed 's/.$//' filename
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sort
sort command examples
Sort a file in ascending order
$ sort names.txt
Sort a file in descending order
$ sort -r names.txt
Sort passwd file by 3rd field.
$ sort -t: -k 3n /etc/passwd | more
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shutdown
shutdown command examples
Shutdown the system and turn the power off immediately.
# shutdown -h now
Shutdown the system after 10 minutes.
# shutdown -h +10
Reboot the system using shutdown co…Read More
service
service command example
Service command is used to run the system V init scripts. i.e Instead of
calling the scripts located in the /etc/init.d/ directory with their full path,
you can use the service command.
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