TriniDBA

This documentation covers some basic Linux commands used with Oracle.

In these examples, the example file name is filename.ext. Substitute the correct filename as necessary.

1. To list files in a directory:

ls

2. To list files in a directory in list format:

ls –l

3. To change directory to the oracle directory under /u0:

cd /u0/oracle

4. To change to the parent directory:

cd ..

5. To rename file1 to file2:

mv file1 file2

6. To remove a file:

rm filename.ext

7. To remove a directory, together with subdirectories:

rm –r directory

8. To get disk space free for all mounted file systems:

df -h

9. To change permissions on a file:

chmod 777 filename.ext

10. To change ownership of a file to applmgr and group dba (you may need to do this as root user):

chown applmgr:dba filename.ext

11. To create a symbolic link name /usr/bin/java to file /usr/local/jdk1.3.1_19 /bin/java

ln –s /usr/local/jdk1.3.1_19/bin/java /usr/bin/java

12. To tar all files in directory (to create one file contains all files in the directory):

tar cvf * filename.tar

13. To untar all files in directory:

tar xvf * filename.tar