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Description: read the input from a file specified on the command line
This to use sash as a #! interpreter.
<long description that can span multiple lines, optional>
Origin: https://github.com/OpenMandrivaAssociation/sash/blob/rolling/sash-3.6-scriptarg.patch
--- a/sash.c
+++ b/sash.c
@@ -527,6 +527,24 @@ main(int argc, const char ** argv)
}
}
+ /* A single argument is allowed, and it must be a filename which
+ provides stdin. This allows #! usage. */
+ if (argc) {
+ int fd;
+
+ fd = open(argv[0], O_RDONLY);
+ if (fd < 0) {
+ fprintf(stderr, "Error opening %s: %s\n", argv[0],
+ strerror(errno));
+ return 1;
+ }
+
+ dup2(fd, 0);
+ close(fd);
+
+ argc--, argv++;
+ }
+
/*
* No more arguments are allowed.
*/
@@ -1344,6 +1362,7 @@ usage(void)
fprintf(stderr, "Stand-alone shell (version %s)\n", version);
fprintf(stderr, "\n");
fprintf(stderr, "Usage: sash [-a] [-q] [-f fileName] [-c command] [-p prompt] [-i]\n");
+ fprintf(stderr, "Usage: sash [-a] [-q] [-f fileName] [-c command] [-p prompt] [-i] [script]\n");
exit(1);
}
--- a/sash.1
+++ b/sash.1
@@ -2,7 +2,7 @@
.SH NAME
sash \- stand-alone shell with built-in commands
.SH SYNOPSYS
-.B sash [-c command] [-f fileName ] [-p prompt] [-q] [-a]
+.B sash [-c command] [-f fileName ] [-p prompt] [-q] [-a] [script]
.SH DESCRIPTION
The
.B sash
@@ -525,6 +525,12 @@ This option is also implied if the -c or
The -a option creates aliases for the built-in commands so
that they replace the corresponding standard commands.
This is the same result as if the 'aliasall' command was used.
+
+A file name may be provided as the last argument to sash, in which case
+sash's standard input is read from that file. This allows #! scripts
+to use sash as their script interpreter. Be aware that sash does not provide
+most normal bourne-shell programming features, however.
+
.SH SYSTEM RECOVERY
This section contains some useful information about using
.B sash
|
