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344 Commits

Author SHA1 Message Date
pk
5d9692a740 Define BSD4_4: quad_t's in struct rlimit; 1998-01-20 22:43:34 +00:00
christos
38c84eeda3 test for the boundary condition in the previous trailing blank fix 1998-01-16 16:26:22 +00:00
christos
2708e4180f PR/4805: Ty Sarna: read builtin does not remove trailing blanks. 1998-01-15 19:39:11 +00:00
christos
505573954e Unfortunately (as I expected) the previous change broke: 
sleep
    cmd='set `type "sleep"`; eval echo \$$#'
    which=`eval $cmd`
    echo $which

because the region did not get recorded at all, and it was interpreted as
a single word. I modified the code to keep track when the result of a
backquote expansion has been recorded to avoid recording it twice. I still
feel that this is not the right fix... More to come.
 1997-12-01 14:43:20 +00:00
christos
81aad04920 Remove local declaration of getenv(); 1997-12-01 14:40:16 +00:00
christos
b7e4df7784 PR/4547: Joern Clausen: Incorrect argument expansion in backquote variable 
assignment. E.g.
	echo ${foo:=`echo 1 2 3 4`}
prints:
	1 2 3 1 2 3 4
because when the arquments are not quoted, the backquote result
gets recorded twice.  The fix right now is to comment out the
record_region() call in expbackq().  I hope that it does not break
anything else.
 1997-11-30 20:57:33 +00:00
cjs
af5956aa6b Make this compile with -DSMALL and warnings on. 1997-11-12 03:40:55 +00:00
kleink
3780e6aa5d Per 1003.2, the (builtin) read utility shall treat the backslash as an 
escape character (including line continuation), unless the `-r' option
is specified:
* adopt to this behaviour, add the `-r' option to disable it;
* remove the `-e' option, which was previously necessary to get this behaviour.
 1997-11-05 14:05:28 +00:00
christos
82ec25620f pid should be pid_t and status should be int! Avoid alignment problems... 1997-10-15 13:23:10 +00:00
christos
946049095f PR/4257: Jaromir Dolecek: Update for libedit interface change. 1997-10-14 15:06:42 +00:00
christos
e230a48b57 CFLAGS->CPPFLAGS 1997-10-10 19:47:50 +00:00
christos
7f2a271743 PR/3662: David Holland: Make /bin/sh use the symbolic macros for wait(). 1997-10-08 20:31:52 +00:00
lukem
92d7aa0376 getopt returns -1 not EOF 1997-09-14 07:43:56 +00:00
thorpej
23eb2db171 Avoid a segv in bltinlookup() reported by Ronald Khoo <ronald@demon.net> 
in PR #3929, fix submitted by hiroy@NETCOM.COM (Hiroyuki Ito).
 1997-08-26 20:09:59 +00:00
christos
23edbe3557 Remove WARNS=1 from all the subdirectory Makefiles, and add it to Makefile.inc 
now that all /bin has been cleaned.
 1997-07-20 22:36:20 +00:00
christos
c996803cad PR/3888: Chris Demetriou: type command-with-slash prints 
$PATH[0]/command-with-slash...
 1997-07-20 21:27:35 +00:00
thorpej
d891aff808 Cast the result of pointer arithmetic to "long", and use %ld to print it. 1997-07-18 17:46:59 +00:00
christos
18ad58a639 PR/3866: bayer@informatik.uni-leipzig.de: core dump using xon script. 
cmdenviron is pointing to varlist.list; varlist gets reset everytime
you enter evalcommand, but cmdenviron does not. The wonders of global
variables...
 1997-07-15 17:49:15 +00:00
christos
1eb178df64 Fix Sparcworks warnings. 1997-07-15 17:45:53 +00:00
christos
bb5e01d099 Don't re-define setjmp/longjmp in the svr4 case 1997-07-15 17:44:32 +00:00
phil
1d304ac34c Add a missing ) in the description of the builtin "set". 1997-07-10 23:07:04 +00:00
phil
64eb899e5a Make code agree with man page in processing expansion of "$*". 
Fix from PR 2647.
 1997-07-07 20:41:10 +00:00
christos
5accccd051 Fix problem introduced in yesterday's commit that broke both signed and 
unsigned character machines. So that people don't have to reverse engineer
this again:
	mksyntax detects if characters are signed or not and builts a syntax
	table that has a base of 129 for signed characters or 1 for unsigned
	characters. This is so the largest negative signed char [-128] + the
	base == 1. 0 is special and means end of file in both cases. PEOF
	is -1 for the unsigned character case and -129 for the signed
	character case, so that syntax[PEOF + base] == syntax[0] == CEOF
	So PEOF has to be -1, but it is explicitly compared with
	unsigned characters on machines where characters are unsigned.
	The quick fix is to define UPEOF the (unsigned char) version of PEOF
	and use that. A better fix is to always use unsigned characters
	when referencing symbol table entries, but that would require
	extensive changes to the shell. So to summarize

	syntax[0] == CEOF, base + PEOF == 0

		unsigned	signed
	base	1		129
	PEOF	-1		-129
 1997-07-05 21:25:09 +00:00
christos
687f7852d9 Make the syntax tables work on machines where characters are unsigned. 1997-07-04 21:40:55 +00:00
christos
cd799663e4 Fix compiler warnings. 1997-07-04 21:01:48 +00:00
christos
28f5c57bd5 Don't roll own rules to build helper programs. 
Add WARNS
 1997-07-04 21:00:36 +00:00
christos
cbf48b75c7 PR/3827: Wolfgang Rupprecht: cd ./. core dumps 
Warning cleanups
 1997-07-04 20:59:40 +00:00
lukem
a1267d0c71 add auto-generated token.h to dependancy for ${OBJS}. 
not everyone runs "make depend" ...
 1997-06-16 02:42:38 +00:00
cjs
cddf57d923 Add documentation for ulimit command, courtsey of 
Eric Fischer <eric@fudge.uchicago.edu>.
 1997-05-23 19:40:30 +00:00
veego
3e90f9b423 Add mkinit.o mknodes.o mksyntax.o to CLEANFILES 1997-05-15 10:03:24 +00:00
mycroft
cc4a1553a1 Eliminate bogus redefinitions of standard targets. 1997-05-09 07:50:03 +00:00
gwr
10e180cc49 Back out the .PATH.c changes. The .depend problem (and others) 
will be fixed using the new .NOPATH make feature instead.
 1997-05-08 21:11:01 +00:00
gwr
012e528f2e Use .PATH.c: ... 1997-05-06 20:44:56 +00:00
christos
fb758fd82b PR/3452: Jerry Peek: Redirections of unopened fd to file failed. 
for arg in a b c
    do
	echo hi this is $arg 1>&3
    done 3> foo
 1997-04-21 12:38:25 +00:00
thorpej
062f26f33b - XXX Inhibit warnings on PowerPC for now - there are lots of 
"char is unsigned" problems here.
- Add rules for mkinit, mknodes, and mksyntax that use the HOST_*
  facilities, for cross-compiling.
 1997-04-17 08:13:26 +00:00
christos
3a468199cb #if __STDC__ -> #ifdef __STDC__ 1997-04-11 23:08:40 +00:00
christos
360e930d42 Make this work on systems that don't have quads 1997-04-11 23:08:15 +00:00
christos
2c8f740e5c __svr4__ -> __SVR4 1997-04-11 23:07:47 +00:00
christos
7ea7f895f5 Use #ifdef __STDC__ instead of #if __STDC__ 1997-04-11 23:06:51 +00:00
christos
92cdde85e8 Fix so that this compiles on systems without quads and remove the double 
inclusion of varargs/stdarg
 1997-04-11 23:05:43 +00:00
christos
70bb105c67 Pointer arithmetic on void * is illegal but gcc does not care. 1997-04-11 23:03:08 +00:00
christos
23745b89db Don't call getpwd() because if that fails the shell cannot start. (from scott) 1997-04-11 23:01:44 +00:00
christos
f726a3c453 Rename pread to preadfd 1997-04-11 23:00:40 +00:00
christos
3bddaec49b add forward declaration of union node; 1997-04-11 22:58:40 +00:00
christos
7efa5addb4 Track $TERM and call the appropriate editline(3) routine to update the 
terminal type.
 1997-04-11 22:45:38 +00:00
christos
a0fa692d3b PR/3352: From Hiroyuki Ito: ${#1} was not being expanded properly if there 
was a need to allocated another stack block.
 1997-03-18 18:54:40 +00:00
christos
7accaec421 NO_HISTORY->SMALL 1997-03-14 01:42:18 +00:00
christos
6042831b7e Fix problems with -DNO_HISTORY 1997-03-13 21:57:32 +00:00
mycroft
3a59e5e8e3 Set input files to close-on-exec mode. 1997-03-13 20:07:49 +00:00
mouse
412433b44c alternate -> alternative, per PR 2643 1997-03-08 13:26:20 +00:00
christos
6b7623a681 Fix PR/3289: upon initialization check if $PWD contains the right directory 
and use it. We also maintain $PWD now, like the rest of the
	     shells.
 1997-03-07 21:36:19 +00:00
christos
4a521d359f varisset fixes: 
- treat $0 specially since it is not in shellparams
	- check the number of parameters instead of walking
	  the parameters array to avoid checking against the
	  null terminated element.
 1997-03-03 19:26:18 +00:00
christos
edc5dadbab PR/3269: Off by one in varisset(), caused variable substitution not to 
count the last positional parameter as set.
 1997-03-01 19:33:29 +00:00
christos
a5aaf55cf3 Fix PR/3258 sh -c 'echo $0' causes segmentation fault. 1997-02-25 17:51:50 +00:00
christos
680690d33c add type builtin. 1997-02-06 23:24:52 +00:00
christos
6f224ae59f Fix parsing problem introduced in the previous ${10} fix, where $#digit 
or $digit# would get mis-parsed as a positional parameter.
 1997-01-26 18:05:34 +00:00
christos
633ceb6db5 - varisset(): In positional arguments, take into account VSNUL so that: 
set -- ""; echo ${1:-wwww} works.
- when expanding arithmetic, discard previous ifs recorded regions, since we
  are doing our own scanning. x=ab; echo $((${#x}+1)) now works.
- in ${var#word} fix two bugs:
   * if there was an exact match, there was an off-by-one bug in the
     comparison of the words. x=abcd; echo ${x#abcd}
   * if there was no match, the stack region was not adjusted and the rest
     of the word was getting written in the wrong place. x=123; echo ${x#abc}X
 1997-01-24 17:26:28 +00:00
christos
3d5f212ba8 enable parsing of multi-digit positional arguments i.e. ${10} works and it 
is not a bad substitution.
 1997-01-24 17:15:56 +00:00
tls
48250187e6 kill 'register' 1997-01-11 02:04:27 +00:00
cjs
5678a13f1b Re-introduce some code from 1.14 (with modifications) to make the 
shell's idea of the current working directory match reality when
symlinks (or anything else we can't stat) are traversed with the
cd command. However, this does not print out the cwd after cd
traverses symlinks, as it used to, though the capability is still
there should one want to use it.
 1996-12-22 08:34:34 +00:00
christos
a00e49c200 Getopts bugs again (I'll never get this right). 
- make sure that OPTIND is set correctly even in the absence of options.
- don't keep stale state between getopts calls.
 1996-12-15 20:37:09 +00:00
christos
340077b543 - fix parsing bug reported by mycroft: ! was only recognized in the beginning 
of pipelines. Now we are recognizing it everywhere like ksh, so:

	! if [ a = b ]; then ! echo c && ! true; else ! echo d; fi

  works.
 1996-11-25 20:22:00 +00:00
christos
9530a32719 Fix bug in getopts code where the argument list got truncated. 
From Todd Miller.
 1996-11-24 20:48:01 +00:00
christos
07aeb5b266 remove a debugging printf that was left from the last POSIX error code fixes. 1996-11-09 01:04:07 +00:00
christos
ccce082dd2 Fix miscellaneous getopts problems: 
- the 3 argument version of getopts would not reset properly
- OPTARG did not get cleared after a non argument option was found
- OPTIND was not set properly after a non argument option.
 1996-11-06 01:17:10 +00:00
christos
846dce0ee3 Fix problems that gcc -Wall found (from Todd Miller, OpenBSD) 1996-11-02 18:26:03 +00:00
christos
a4ad4c0efc A correction to the previous patch from Todd Miller. 1996-11-02 18:07:08 +00:00
christos
27e15e5bbc echo ${1:-empty} did not do the substitution; from Todd Miller (OpenBSD) 1996-11-02 17:47:41 +00:00
cgd
8ba64baaaf add builtins.h to the list of (built) headers depended on by ${OBJS}, so 
make from 'cleandir' works.
 1996-10-22 13:22:19 +00:00
abrown
e613224229 Remove leftover printf("here") from last change. 1996-10-19 02:38:36 +00:00
christos
bc73cf950a PR/2808: Remove trailing whitespace (from FreeBSD) 1996-10-16 15:45:03 +00:00
christos
afb80e9b13 PR/2808: Add a definition for warnx() (from FreeBSD; currently unused) 1996-10-16 15:28:10 +00:00
christos
2b0a187f34 PR/2808: Use .Nm macro properly. (from FreeBSD) 1996-10-16 15:27:03 +00:00
christos
1a523dd56b PR/2808: - Don't use p++ in macros. 
- Hash using unsigned numbers.
	 (from FreeBSD)
 1996-10-16 15:24:31 +00:00
christos
68b1dcea6d PR/2808: Don't define DEBUG and #ifdef out functions not needed when DEBUG 
is not defined (from FreeBSD).
 1996-10-16 15:21:49 +00:00
christos
3b66e0cada PR/2808: Add HISTORY section and documentation of getopts. (from FreeBSD) 1996-10-16 15:20:01 +00:00
christos
da8c1311a3 PR/2808: fix redirection to the same file descriptor 
better error messages for failed pipes
	 (from FreeBSD)
 1996-10-16 15:16:04 +00:00
christos
d8c242f0ae PR/2808: - detect eof inside backquotes 
- handle && and || shortcircuits properly
	 - tokens.def -> tokens.h
	 (from FreeBSD)
 1996-10-16 14:53:23 +00:00
christos
10a76271de No need to have 2 declarations for the same constant string, one for K&R and 
one for STDC...
 1996-10-16 14:51:24 +00:00
christos
fd8c99438e PR/2808: POSIX 1003.2: first arg after -c cmd is $0, remainder $1... 
(from FreeBSD)
 1996-10-16 14:49:56 +00:00
christos
14185e5152 PR/2808: Kill use of error2() (from FreeBSD) 1996-10-16 14:49:03 +00:00
christos
71ab1d0aed PR/2808: tokens.def -> tokens.h 1996-10-16 14:47:49 +00:00
christos
03ba3cf0d6 PR/2808: Use the <ctype.h> functions instead of our homegrown tables to 
determine if a character is alpha or alphanumeric, so that NLS
	 works... now if only our NLS really worked... (from FreeBSD).
 1996-10-16 14:46:35 +00:00
christos
f6c00506fc PR/2808: Remove extraneous newline from error message (from FreeBSD) 1996-10-16 14:44:28 +00:00
christos
00a9e38ee8 PR/2808: #undef things that we #define to avoid duplicate definitions. 
(from FreeBSD)
 1996-10-16 14:43:37 +00:00
christos
a20d79429a PR/2808: Don't include <sgtty.h> unless OLD_TTY_DRIVER is defined. 
Remove extraneous newline from error messages.
 1996-10-16 14:42:20 +00:00
christos
435812e77d PR/2808: Remove extraneous newlines from error routines (from FreeBSD) 1996-10-16 14:40:32 +00:00
christos
4b99c4d748 PR/2808: Fix parsing of $n where n > 9 (from FreeBSD) 1996-10-16 14:38:58 +00:00
christos
2a9c11dd53 PR/287: Shell does not exit with 126/127 when permission denied/ 
command not found. Add extra exception type and generalize
	error handling routines to take that exception type. Use
	a global variable exerrno to keep the last exec error.
 1996-10-16 14:35:42 +00:00
christos
886c875a97 PR/287: Exit with 127/126 when command is not found/permission denied. 
PR/2808: don't bomb out on "set -e; false && true"
 1996-10-16 14:31:57 +00:00
christos
dd6abbc5c3 PR/2808: Handle cd "". This is for systems where "" != "." 1996-10-16 14:29:42 +00:00
christos
aded8d4c14 PR/2808: tokens.def -> tokens.h 1996-10-16 14:24:56 +00:00
christos
3ec8ea2b0e PR/2808: Depend and clean fixes from FreeBSD 1996-10-16 14:23:51 +00:00
thorpej
47f181309b If getcwd() fails, dang it, I want to know _why_. 1996-09-18 22:47:48 +00:00
mycroft
c65b90450d ioctl(TIOC[GS]PGRP) -> tc[gs]etpgrp() 1996-09-17 14:44:05 +00:00
christos
4d9c694460 Apply PR#2721 from VaX#n8: make man page more lucid in places. 1996-09-02 21:28:21 +00:00
christos
29cad877cd Don't infinite loop with: 
unset var
	echo ${var:=}
 1996-09-02 21:25:52 +00:00
christos
beb57fb35d - Add function callback capability when variables are set. 
- Add setvarsafe that returns an error instead of longjmp() to the
  error code.
 1996-06-25 16:49:05 +00:00
christos
cc31700a92 - Add getoptsreset to be used as a callback function when OPTIND is set. 
This is used to implement the POSIX behavior when OPTIND=1
- Call setvarsafe instead of setvar. If one ran
	"getopts optstr badvariable"
  where badvariable contained an illegal variable name, there was no way
  to recover, since setvar() would longjmp on the error.
 1996-06-25 16:47:43 +00:00
christos
02b3c16118 change sethistsize() to take the history size as an argument so it can 
be used directly by the new variable callback functions.
 1996-06-25 16:43:33 +00:00
christos
9a738ef22d const poisoning. 1996-06-25 16:40:38 +00:00
christos
70ad20e9f1 Include header files to get function prototypes; don't use home grown ones. 1996-06-25 16:40:06 +00:00
christos
0bc88b2434 getopts fixes: 
1. OPTIND value was not computed correctly when the argument was part of the
   option string (i.e. for "l:" "-l 1" was working "-l1" was not). (PR/2505).
2. OPTARG was not being unset in case of errors [in the non POSIX error case].
3. optvar could be set to random values.
4. Option string starting with a : was not treated specially as POSIX
   specifies (if the option string starts with a :, then there is no
   error printed when there are missing option arguments or illegal options,
   and OPTARG and optvar are being set specially).
5. Implemented getopts "opts" optvar [arg]. The optional argument case
   was not implemented.

To do:
- what does Posix say about resetting the getopts state? Bash does it
  by setting OPTIND=0; is that correct? Should we be doing the same thing?
- should we be using getopt(3) for everything internal to the shell? Is that
  feasible because we might need to handle multiple invocations at once.
 1996-06-04 21:00:09 +00:00
christos
66824391d1 Fix PR/2504: return with no args returns 0 instead of the return value of 
the previous command in functions
 1996-06-03 12:21:17 +00:00
cgd
edc0ef345c Fix growstackblock() 'newlen' calculations: 
(1) it needs to be ALIGNed for both halves of the 'if,' and
	(2) if you're going to claim that you now have ALIGN(newlen)
	    bytes left, you should have actually allocated
	    ALIGN(newlen), rather than just 'newlen' bytes.
 1996-05-20 14:49:32 +00:00
christos
55a41e8abb Close PR/2384 backquoted backslash-newline was not eaten. 1996-05-09 19:40:08 +00:00
pk
0b9acf16f8 Return zero status if `else' clause is empty. 1996-03-06 14:49:29 +00:00
christos
b09ffc42b1 - parser.c: Fix prompting in old style backquote expansion. Fixes PR/2139 
and many user complaints why the shell hangs in echo "`"
- eval.c:   Fix exitstatus invalid resetting in `if' statements were:
		if (exit 3); then
			echo foo $?
		else
			echo bar $?
		fi
	    printed 'bar 0' instead of bar 3
 1996-03-05 21:03:52 +00:00
jtc
16f5230c39 Changed so that cd builtin doesn't do wierd stuff when cd'ing through 
symlinks.  From Chris Demetriou <cgd@NetBSD.ORG>.  Fixes PR #1776.

Changed so that INTOFF/INTON are paired in getpwd().  From Matthias
Pfaller <leo@marco.de>.  Fixes PR #2130.
 1996-03-01 01:58:58 +00:00
mycroft
b5b9e1d0fa Fix problems with the way init.o is built: 
* Prevent gratuitous rebuilds when nothing has changed.
* Make sure it's rebuilt if a .h file is updated.
From Mike Long, PR 1454.
 1996-02-18 12:29:18 +00:00
christos
d3aec2060d Fix PR/2070: Ksh style variable modifiers were broken in /bin/sh, from 
enami tsugutomo
 1996-02-12 15:11:41 +00:00
christos
ff008dabf6 Fix PR/1760, where 'cd -' before any other command could cause a reference 
to an uninitialized pointer. Use getcwd() to get the current working directory,
instead of forking /bin/pwd [per Scott's suggestion]
 1995-11-19 23:27:37 +00:00
christos
c22dddc4e0 Parallel make fixes. 1995-10-22 00:15:02 +00:00
christos
893ade3fac - fix PR1620, -DNO_HISTORY did not work. 
- restore parsing state after parsing old style command substitution.
  The ';' in '`echo z;`' broke the following:
	for i in 1; do
		cat > /dev/tty << __EOF__
		`echo z;`
		__EOF__
	done

cVS: Enter Log.  Lines beginning with `CVS: ' are removed automatically
 1995-10-19 04:14:37 +00:00
christos
92380da725 fixed previous booboo that broke command line editing input. 1995-10-06 21:38:18 +00:00
christos
c1b02d9bff - Fix -v flag, so that it works properly when the shell reads from scripts. 
- Bad style to fix my own PR, but I'd like to commit the parallel make
  changes soon, and this is a necessary prerequisite.
 1995-09-26 13:25:19 +00:00
jtc
d4fe82df8d Handle %q format directive; from Mike Long (PR #1454). 1995-09-14 16:19:06 +00:00
christos
f9382bca1a Fix return builtin to work like it does in ksh: 
When not in a function, it skips the rest of the current input file.
Instances of `return' outside function definitions were previously ignored.
What does joe posix have to say about this?
[fixes PR/1444]
 1995-09-11 17:05:41 +00:00
christos
782cb68126 Fix bin/1240, from Dennis Ferguson. the exit builtin with no arguments 
should return the exitcode of the previous command but it always returned 0.
 1995-07-20 15:04:16 +00:00
pk
edae5ead03 Relocate pointers after re-allocation of the job table. 1995-07-04 16:26:45 +00:00
jtc
88fc62fe16 Changed type of rlimit values from quad_t to rlim_t. Cast rlim_t's to 
quad_t's and use "%qd" in printf.
Eliminated unneccessary conditional.
 1995-06-12 19:44:16 +00:00
mycroft
332b7d5213 Add a DPADD. 1995-06-10 20:19:40 +00:00
christos
a45947b2a4 Changed so that 'PATH=newpath command' works, instead of looking at the 
old path. Synced input.c with vangogh.
 1995-06-09 01:53:44 +00:00
cgd
dcb82cbdbc needs string.h 1995-06-07 16:28:03 +00:00
christos
9d255ec409 Ignore result of sigaction when setting traps. Traps will succeed even 
on SIGKILL or SIGSTOP. This is what other bourne shells do. (suggested
by mycroft)
 1995-06-07 04:16:57 +00:00
christos
b842cc2784 Avoid trapping SIGKILL. Pretend that we did, so that we will not keep 
failing trying to trap it later. This is what the other bourne shells do.
 1995-06-05 14:24:33 +00:00
christos
58e18fc330 Fixed bug where 
$ cat foo
echo $FOO

$ FOO=1 . ./foo
$ echo $FOO

Did not echo 1 at all. Now variable assignments before sourced scripts
are honored during and after the execution of the script.
 1995-05-28 18:09:48 +00:00
christos
4fb6f609aa Changed so that syntax errors (EXERROR) set the exit status to 2, 
and commands that are not found set the exit status to 1 like all
other bourne shells.
[It used to be 0 and 2 respectively]
 1995-05-19 15:08:55 +00:00
christos
56a08eccca Fixed bug where ${#} was interpreted incorrectly as ${#var} and thus 
misparsed. Keith Bostic reported it.
 1995-05-17 00:05:25 +00:00
cgd
b5f33fc18e re-add an #endif that was (apprently) clobbered. 1995-05-15 03:29:54 +00:00
christos
fbac2e9de2 Fixed new bug the previous fix introduced: 
false
    foo=bar
    echo $?

would print 1
Also fixed the long standing bug:

    false
    echo `echo $?`

would print 0
The exitstatus needs rethinking and rewriting. The trial and error method
is not very efficient
 1995-05-15 02:47:38 +00:00
christos
2e1970487e Fixed bug caused by previous x=false not preserving the exit status fix. 
The if statement exit status broke...
 1995-05-14 04:19:18 +00:00
christos
07bae7eddd Merge in my changes from vangogh, and fix the x=false; echo $? == 0 
bug.
 1995-05-11 21:28:33 +00:00
christos
dae6c6b963 Added missing resource limits and recognize "unlimited" as RLIM_INFINITY 1995-04-11 03:17:45 +00:00
christos
df504509f1 1. Don't core dump on 'fc -l' (From Gerard J van der Grinten) 
2. PATH=xxx ls, does the PATH assignment first and then tries to find ls in xxx
3. VAR=xxx exec ls, does the variable assignment.
 1995-03-31 21:58:09 +00:00
christos
6ee2193d9a Reverted to set - turning off -x and -v. Charles corrected me... It is part 
of POSIX.
 1995-03-26 17:25:10 +00:00
christos
ad1f891148 set - 
does not anymore clear the -x and -v flags. This was incompatible with
all other bourne shell implementations.
 1995-03-25 23:45:24 +00:00
mycroft
6bfd77e432 Fix typo in previous. 1995-03-23 00:01:03 +00:00
mycroft
3e417cced4 Use sigprocmask(), not sigsetmask(). 1995-03-21 15:40:16 +00:00
cgd
49f0ad8601 convert to new RCS id conventions. 1995-03-21 09:01:59 +00:00
christos
5c42185b5c Oops... typo in the IFS previous fix. 1995-02-28 23:27:24 +00:00
christos
6ab1954578 Changed so that backquote expansion eats all trailing newlines, not just 
the last one.
Reported by guido@gvr.win.tue.nl (Guido van Rooij).
Repeat By:

	echo "`cat file-with-many-newlines`"
 1995-02-28 23:09:43 +00:00
christos
3936aab031 Changed IFS string-splitting so that it breaks spaces even when IFS does not 
begin with a space, but contains one. Fixes PR bin/809.

        #!/bin/sh
        list="a  b c "
        echo "With ordinary IFS"
        for i in $list;do
            echo $i
        done
        IFS=":${IFS}"
        echo "With changed IFS"
        for i in $list;do
            echo $i
        done

Note that before the fix ":${IFS}" behaved differently than "${IFS}:".
 1995-02-28 22:46:12 +00:00
mycroft
f5ad44b6ac Use S_IS*(). 1995-01-30 19:30:13 +00:00
christos
ad8d5369f5 I added the documented in the manual but not implemented variable expansions: 
${#WORD}
    ${WORD%PAT}
    ${WORD%%PAT}
    ${WORD#PAT}
    ${WORD##PAT}
 1995-01-23 06:33:03 +00:00
mycroft
4d643bf207 Remove `.' from default PATH. 1995-01-20 18:21:16 +00:00
mycroft
c4459d08d9 Clean up deleted files. 1995-01-15 10:15:19 +00:00
mycroft
4bcd14e0b4 Remove the gratuitous `security' warning. 1995-01-15 09:29:16 +00:00
jtc
cc9fe5ba6d Describe the : shell builtin. 
Fixes PR #712.
 1995-01-12 23:35:56 +00:00
mycroft
e848bd4fb5 Fix that last bug in a less expensive way. 1994-12-31 23:56:54 +00:00