This is the command to print all regular files in the src folder but excluding all files within the .svn folders: $ find src -name .svn -prune -o -type f -print where -o is the or operator. Define a shortcut: ff () { find $1 -name .svn -prune -o -...

Unix hidden files are named starting with a dot ".". To find hidden files in the current directory: $ find . -type f -name '.*' or $ find . -type f | grep \\/\\. To find hidden files in the marketing directory: $ find marketing -type f -name '.*' or $ find marketing -type f | grep \\/\\.

Summarized from The C Book : There are essentially two types of object in C: the internal and external objects. Anything declared outside a function is external; anything inside one, including its formal parameters, is internal. Since no function can be defined inside another, functions are always external. All function declarations implicitly have the extern keyword stuck in front of them, whether or not you put it there. These two declaearions are equivalent: void some_function(void); extern void some_func... The term linkage is used to describe the accessibility of objects from one file to another. There are three types of linkage: external , internal , and no linkage . Type of linkage Type of object Accessibility external external Across files, througout the program internal external Within...

Count the total number of lines of shell scripts (files ending with sh ): $ find . -type f -name \*.sh | xargs wc -l 2... Count the total number of lines for files under the src directory: find src -type f | xargs wc -l Count the total number of lines for files under the current directory whose path contains src/ : find . -type f -path \*src/\* | xargs wc -l

From Fedora Project wiki : A security context , or security label , is the mechanism used by SELinux to classify resources, such as processes and files, on a SELinux-enabled system. This context allows SELinux to enforce rules for how and by whom a given resource should be accessed. A security context is typically shown as a string consisting of three or four words. Each word specifies a different component of the security context, namely, the user , role , type , and level of that file or process . Each word is separated by a colon. Use the -Z switch to display security context info. Display security context for Apache files: $ ls -Z /var/www/ drwxr-xr-x. root root system_... Display security for files under...

-bash-4.1$ psql psql (8.4.4) Type "help" for...

PostgreSQL JDBC doc says: Specifically deleting a row that contains a Large Object reference does not delete the Large Object. Deleting the Large Object is a separate operation that needs to be performed. . In JDBC this can be done in two steps: Delete the large object (call PostgreSQL function lo_unlink ) long oid = jdbcTemplate.queryForObject("select... Delete the row in the referring table: jdbcTemplate.update("delete from InventoryItem whe...

PostgreSQL provides two distinct ways to store binary data: Binary data can be stored in a table using the data type bytea . By using the Large Object feature which stores the binary data in a separate table in a special format and refers to that table by storing a value of type oid in your table. Different methods are used to access the BLOBs depending on which storage type you choose: To use the bytea data type you should use the getBytes() , setBytes() , getBinaryStream() , or setBinaryStream() methods. To use the Large Object functionality you can use either the LargeObject class provided by the PostgreSQL JDBC driver, or by using the getBLOB() and setBLOB() methods. Using setBinaryStream on an OID column yields...

From the command line I can start and stop Windows services with NET START service_name and NET STOP service_name . But the NET command does not give a way to find the service name. You need the sc command to get the service name, below are some examples: List all running services: sc query List all services, running or not running (notice the space after =): sc query type= service state= all List all active drivers: sc query type= driver Find information about the "Indexing Service" (requires GNU grep): sc query type= service state= all | grep -i index ... Start the indexing service: sc start CiSvc Stop the indexing service: sc stop CiSvc Check the status of the indexing service: sc query CiSvc

Problem: cannot connect to PostgreSQL server because of above error. Solution: add the host entries to the /usr/local/pgsql/data/pg_hba.conf file: # TYPE DATABASE USER CIDR-ADDRESS ... Reference for CIDR address: http://oav.net/mirrors/cidr.html