Use getpwnam group of functions. Example code: #include <sys/types.h> #include <pwd.h> #inc... For gid, use getgrnam

To find out the DNS server ip address your computer is using, load this page in your browser: http://myresolver.info/

execl takes the full path name of the command and variable length of arguments terminated by NULL: execl("/bin/ls", "/bin/ls", "-r", "-t", "-l", NULL... where the second argument is argv[0] , but can be any string! execlp will try to find the command from $PATH , so full path to command is not needed: execl("ls", "ls", "-r", "-t", "-l", NULL); execv is the equivalent of execl , except that the arguments are passed in as a NULL terminated array: char *args[] = {"/bin/ls", "-r", "-t", "-l", NULL ... execvp is the equivalent of execvl , excep that the arguments are passed in as a NULL terminated array: char *args[] = {"ls", "-r", "-t", "-l", NULL }; ...

Use the .prev() function to find the previous sibling of the current element: $(this).prev() or $(this).prev('.selected')

To find JSP files containing ' [0] ': grep -l '\[0]' src/main/webapp/WEB-INF/views/*.jsp or grep -l \\[0] src/main/webapp/WEB-INF/views/*.jsp

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 -...

This was the error message: [ERROR] sun.security.validator.ValidatorExceptio... The certificate was actually signed by Verisign, but somehow failed to pass Java cert validation. To resolve the problem: Download the cert from the server (with RetrieveSSLCert , for example) Import the certificate into the keystore: $ keytool -import -trustcacerts -alias myserver -f... Define MAVEN_OPTS : $ export MAVEN_OPTS='-Djavax.net.ssl.trustStore=/h... The quotes must exist for the value of MAVEN_OPTS , and the path must be absolute ( ~/etc/mavenKeyStore.jks does not work).

I think this is simpler: grep -l limit .*

There are two ways to get the submit button: Use the :submit selector (note the space between the form name and :submit ): $('#the-form-id :submit') Use attribute selector (also, space between form id and attribute selector): $('#the-form-id [type="submit"] ') // or $(... jQuery recommends the latter if you are concerned about performance: Because :submit is a jQuery extension and not part of the CSS specification, queries using :submit cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in modern browsers, use [type="submit"] instead.

To exclude CVS directories: grep -R -l --exclude-dir=CVS 'string_to_find‘ src ... To exclude .svn directories: grep -R -l --exclude-dir=.svn 'string_to_find‘ src...