bash-4.2# pwd
/oracle/product/10.2.0/db_1/network/admin
bash-4.2# ls
sqlnet.ora libnrad10.exp listener.ora samples tnsnames.ora
libnk510.imp libnrad10.imp listener.ora.bak shrept.lst
bash-4.2# cp sqlnet.ora sqlnet.ora.bak
cp: sqlnet.ora: A file or directory in the path name does not exist.
bash-4.2#
bash-4.2#
bash-4.2# ls -ltr
total 40
-rw-r----- 1 oracle dba 172 Dec 26 2003 shrept.lst
-rw-r----- 1 oracle dba 0 Aug 14 2005 libnrad10.imp
-rw-r----- 1 oracle dba 0 Aug 14 2005 libnrad10.exp
-rw-r----- 1 oracle dba 0 Aug 14 2005 libnk510.imp
drwxr-x--- 2 oracle dba 256 Dec 13 2012 samples
-rw-r--r-- 1 oracle dba 505 Jun 12 09:04 listener.ora.bak
-rw-r--r-- 1 oracle dba 183 Jun 12 09:13 tnsnames.ora
-rw-r--r-- 1 oracle dba 39 Jun 12 09:18 sqlnet.ora
-rw-r--r-- 1 oracle dba 347 Jun 12 09:22 listener.ora
bash-4.2# ls sqlnet.ora
ls: 0653-341 The file sqlnet.ora does not exist.
bash-4.2#
bash-4.2# more sqlnet.ora
sqlnet.ora: A file or directory in the path name does not exist.