[patch] The patch to enhance the "script" command

util-linux-2.11z-script.patch (text/plain), 1.54 KB, created by Wayne Davison on 2003-05-17 03:27:22 UTC

--- util-linux-2.11z/misc-utils/script.1	2002-01-12 11:45:00.000000000 -0800
+++ ./misc-utils/script.1	2003-05-12 16:40:34.000000000 -0700
@@ -40,6 +40,7 @@
 .Sh SYNOPSIS
 .Nm script
 .Op Fl a
+.Op Fl c Ar COMMAND
 .Op Fl f
 .Op Fl q
 .Op Fl t
@@ -69,6 +70,10 @@
 or
 .Pa typescript ,
 retaining the prior contents.
+.It Fl c Ar COMMAND
+Run the COMMAND rather than an interactive shell.
+This makes it easy for a script to capture the output of a program that
+behaves differently when its stdout is not a tty.
 .It Fl f
 Flush output after each write. This is nice for telecooperation:
 One person does `mkfifo foo; script -f foo' and another can
--- util-linux-2.11z/misc-utils/script.c	2002-11-26 08:18:00.000000000 -0800
+++ ./misc-utils/script.c	2003-05-12 16:33:27.000000000 -0700
@@ -91,6 +91,7 @@
 char	line[] = "/dev/ptyXX";
 #endif
 int	aflg = 0;
+char	*cflg;
 int	fflg = 0;
 int	qflg = 0;
 int	tflg = 0;
@@ -135,11 +136,14 @@
 		}
 	}
 
-	while ((ch = getopt(argc, argv, "afqt")) != -1)
+	while ((ch = getopt(argc, argv, "ac:fqt")) != -1)
 		switch((char)ch) {
 		case 'a':
 			aflg++;
 			break;
+		case 'c':
+			cflg = optarg;
+			break;
 		case 'f':
 			fflg++;
 			break;
@@ -284,6 +288,7 @@
 
 void
 doshell() {
+	char *opt = cflg? "-c" : "-i";
 	/***
 	int t;
 
@@ -301,9 +306,9 @@
 	(void) dup2(slave, 2);
 	(void) close(slave);
 #ifdef __linux__
-	execl(shell, strrchr(shell, '/') + 1, "-i", 0);
+	execl(shell, strrchr(shell, '/') + 1, opt, cflg, 0);
 #else
-	execl(shell, "sh", "-i", 0);
+	execl(shell, "sh", opt, cflg, 0);
 #endif
 	perror(shell);
 	fail();