Friday, May 10, 2013

Creating Unix Files/Directories

Creating text files

 touch file1 file2 file3                       # One/more empty file create
 echo “Test” > redirect_output        # redirect the echo output
 cat file1 file2  file3 > conc_file       # concatenate file1,file2,file3 into conc_file

 Remove the files

 rm file1            # remove single file file1
 rm file1 file2    # remove mulitiple file file1, file2
 rm *                 # remove all the files from current directory(keep in mind it will  delete all the files from present directory)

delete options
 
rm -i file1                    # get user suggestion before delete the file
rm -rf file1/directory  #  it will delete files/directories without any suggestion

 

Create & Remove the hidden files

Before file name put l(dot) is used to create hidden files.
It should be displayed using the option ls -a 
 

Creating / Deleting a directory

Syntax:    mkdir dir_name
                rmdir dir_name      # remove the empty dir only
                rm –rf dir_name     # remove the non empty directory

Changing directory

     cd [pathname]
     cd       # return home directory
     cd -     # return to the previous  working directory
     cd ..    # change to previous directory
     pwd    # display the path name of the working

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