ls Shows the list of file
ls -l Shows the long list of files
ls -a Shows the list of hidden files
ls -la Shows the long list of files along with hidden files and folders
ls -lt Shows the list of file sort by time and date
ls -ls Shows the list of file long format with file size
ls -lh Shows the list of file with readable file size
ls -i Shows the list of file with i nodes
ls -r Shows the list of file in reverse order
ls -R Shows the list of file recursively
ls -s Shows the list of file with file size
ls -S Shows the list of file sort by file size
ls -X Shows the list of file sort by extension
cd home Changes the directory in to home
cd vagrant/ Change the directory in to vagrant
cat svs.txt Displays the file contains
touch sv.txt Creates the text file sv
cd Change the directory in to home
cd /temp Changes the directory in to temp
cd /home/vagrant/ Changes the directory in to vagrant
mkdir sv Creates the Directory sv
rm sv.txt It removes the file sv.txt
cd /tmp/sv It change the directory in to sv
ls list of files and directories
cd sv Change directory in to sv
pwd Present working directory
cd .. Change directory one step back
pwd Present working directory
cd /home/vagrant Changes the directory in to vagrant
cd /tmp/sv Changes the directory in to sv
cd It changes current and previous directory
history It shows the all commands in history
creating the link files
ln -s /home/vagrant/data/tool.txt devtool it will create the softlink of the original file
unlink devtool It unlinks the file
rm devtool It is also unlink the file
Filter by grep command
(grep word file)
grep what file name It means the what is the word contains the file it will searches
grep -i what file name It searches the word by case insensitively
grep -i what *.cfg It searches all files contains .cfg
grep -i what * It searches the all the files in current directory
less and more
less file name It shows the information by pressing the down arrow to go down up to go upwords and type q to quit
more file name It shows the information by pressing enter to go down and press q to quit
head and tail
head file name It shows 10 lines from starting
head -20 file name It shows 20 lines from starting
tail file name It shows 10 lines from ending
tail -20 file name It shows 20 lines from ending
tail -f file name It shows the dynamic content it updates in terminal
cut -d: -f1 file name Delimiters is used to shows the colums by separately
Search and replace by Vim editer
:%s/devops/noops/g It replaces the word devops by noops in vim editer
sed -i 's/devops/noops/g' It replaces the word devops by noops
head -5 file name > /tmp/tool.txt It store the first five lines into tool.txt file
head -5 file name >> /tmp/tool.txt It store the first five lines into tool.txt and keeps the previous info
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