When I ran this code snippet with strace : f = fopen("TZ", "rb"); fseek(f, 0, SEEK_END); ... I saw ENOTTY error with uClibc : open("TZ", O_RDONLY|O_LARGEFILE) = 3 ioc... With the normal gnu libc , there's no such error: open("TZ", O_RDONLY) = 3 fstat64... There was no error running the program. But for some reason, uClibc did a ioctl call when it opened a file, and handled it appropriately.

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

By default SELinux blocks execstack permission. According to Ulrich Drepper : "As the name suggests, this error is raised if a program tries to make its stack (or parts thereof) executable with an mprotect call. This should never, ever be necessary. Stack memory is not executable on most OSes these days and this won't change. Executable stack memory is one of the biggest security problems. An execstack error might in fact be most likely raised by malicious code." You can check if a library/application requires execstack by using the execstack utility: execstack -q PATHTOPROGRAM You can try to clean the flag and see if the application still runs: execstack -c PATHTOPROGRAM To allow execstack for cc1 : # grep cc1 /var/log/audit/audit.log | audit2allow ...

PostgreSQL jdbc connection string: jdbc:postgresql://<hostname>:<port>/<database_name> . Example code: // register JDBC driver with DriverManager Clas...

cURL is a command line tool for transferring files with URL syntax. The main purpose and use for cURL is to automate unattended file transfers or sequences of operations. It's really easy to see HTTP headers with curl: C:\>curl --head http://www.google.com HTTP/1.0 ... or, headers and page together (dump headers to stdout): $ curl --dump-header - http://www.google.com HTTP/... Download openssl from openssl.org: curl http://www.openssl.org/source/openssl-0.9.6m.... C:\>curl --help Usage: curl [options...] <url> ...

Use the \d command to show information about a table: postgres=# \d patchtype Table ...