bases - Convert an integer to hex, octal, and binary curfit - Fit data with Chebyshev, Legendre or spline curve detab - Replace tabs with tabs and blanks entab - Replace blanks with tabs and blanks lcase - Convert a file to lower case polyfit - Fit polynomial to list of X,Y data split - Split a large file into smaller segments surfit - Fit a surface, z=f(x,y), to a set of x, y, z points translit - Replace or delete specified characters in a file ucase - Convert a file to upper case urand - Uniform random number generator nttools - NOAO version of TTOOLS package