FILE(1) General Commands Manual FILE(1)NAME
file - determine file type
file file ...
File performs a series of tests on each argument in an attempt to classify it. If an argument appears to be ascii, file examines the first
512 bytes and tries to guess its language.
It often makes mistakes. In particular it often suggests that command files are C programs.
Does not recognize Pascal or LISP.
7th Edition April 29, 1985 FILE(1)
Check Out this Related Man Page
putc, putchar, fputc, putw - put character or word on a stream
int putc(c, stream)
int fputc(c, stream)
int putw(w, stream)
Putc appends the character c to the named output stream. It returns the character written.
Putchar(c) is defined as putc(c, stdout).
Fputc behaves like putc, but is a genuine function rather than a macro.
Putw appends word (that is, int) w to the output stream. It returns the word written. Putw neither assumes nor causes special alignment
in the file.
SEE ALSO fopen(3S), fclose(3S), getc(3S), puts(3S), printf(3S), fread(3S)DIAGNOSTICS
These functions return the constant EOF upon error. Since this is a good integer, ferror(3S) should be used to detect putw errors.
Because it is implemented as a macro, putc treats a stream argument with side effects improperly. In particular
doesn't work sensibly.
Errors can occur long after the call to putc.
7th Edition November 6, 1985 PUTC(3S)
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