POSIX regex functions NAME regcomp, regexec, regerror, regfree - POSIX regex functions LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl...POSIX regex functions NAME regcomp, regexec, regerror, regfree - POSIX regex functions LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl...POSIX regex functions NAME regcomp, regexec, regerror, regfree - POSIX regex functions LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl...POSIX regex functions NAME regcomp, regexec, regerror, regfree - POSIX regex functions LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl...POSIX regex functions NAME regcomp, regexec, regerror, regfree - POSIX regex functions LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl...POSIX regex functions NAME regcomp, regexec, regerror, regfree - POSIX regex functions LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl...POSIX regex functions NAME regcomp, regexec, regerror, regfree - POSIX regex functions LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl...POSIX regex functions NAME regcomp, regexec, regerror, regfree - POSIX regex functions LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl......SIX regular expressions are supported and the following functions are present: regcomp () regerror () regexec () regfree () --- - _POSIX_SAVED_IDS - _SC_SAVED_IDS If this option…