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commit bash-20190612 snapshot

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Chet Ramey
2019-06-14 09:31:42 -04:00
parent 653d7134f8
commit f602910792
24 changed files with 1256 additions and 1099 deletions
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doc/bash.0
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@@ -6041,21 +6041,22 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS
Wait for each specified child process and return its termination
status. Each _i_d may be a process ID or a job specification; if
a job spec is given, all processes in that job's pipeline are
waited for. If _i_d is not given, all currently active child pro-
cesses are waited for, and the return status is zero. If the --nn
option is supplied, wwaaiitt waits for a single job to terminate and
returns its exit status. Supplying the --ff option, when job con-
trol is enabled, forces wwaaiitt to wait for _i_d to terminate before
returning its status, instead of returning when it changes sta-
tus. If _i_d specifies a non-existent process or job, the return
status is 127. Otherwise, the return status is the exit status
of the last process or job waited for.
waited for. If _i_d is not given, wwaaiitt waits for all running
background jobs and the last-executed process substitution, if
its process id is the same as $$!!, and the return status is zero.
If the --nn option is supplied, wwaaiitt waits for a single job to
terminate and returns its exit status. Supplying the --ff option,
when job control is enabled, forces wwaaiitt to wait for _i_d to ter-
minate before returning its status, instead of returning when it
changes status. If _i_d specifies a non-existent process or job,
the return status is 127. Otherwise, the return status is the
exit status of the last process or job waited for.
RREESSTTRRIICCTTEEDD SSHHEELLLL
If bbaasshh is started with the name rrbbaasshh, or the --rr option is supplied at
invocation, the shell becomes restricted. A restricted shell is used
to set up an environment more controlled than the standard shell. It
behaves identically to bbaasshh with the exception that the following are
invocation, the shell becomes restricted. A restricted shell is used
to set up an environment more controlled than the standard shell. It
behaves identically to bbaasshh with the exception that the following are
disallowed or not performed:
+o changing directories with ccdd
@@ -6064,16 +6065,16 @@ RREESSTTRRIICCTTEEDD SSHHEELLLL
+o specifying command names containing //
+o specifying a filename containing a // as an argument to the ..
+o specifying a filename containing a // as an argument to the ..
builtin command
+o specifying a filename containing a slash as an argument to the
+o specifying a filename containing a slash as an argument to the
--pp option to the hhaasshh builtin command
+o importing function definitions from the shell environment at
+o importing function definitions from the shell environment at
startup
+o parsing the value of SSHHEELLLLOOPPTTSS from the shell environment at
+o parsing the value of SSHHEELLLLOOPPTTSS from the shell environment at
startup
+o redirecting output using the >, >|, <>, >&, &>, and >> redirect-
@@ -6082,10 +6083,10 @@ RREESSTTRRIICCTTEEDD SSHHEELLLL
+o using the eexxeecc builtin command to replace the shell with another
command
+o adding or deleting builtin commands with the --ff and --dd options
+o adding or deleting builtin commands with the --ff and --dd options
to the eennaabbllee builtin command
+o using the eennaabbllee builtin command to enable disabled shell
+o using the eennaabbllee builtin command to enable disabled shell
builtins
+o specifying the --pp option to the ccoommmmaanndd builtin command
@@ -6095,14 +6096,14 @@ RREESSTTRRIICCTTEEDD SSHHEELLLL
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed (see CCOOMM--
MMAANNDD EEXXEECCUUTTIIOONN above), rrbbaasshh turns off any restrictions in the shell
MMAANNDD EEXXEECCUUTTIIOONN above), rrbbaasshh turns off any restrictions in the shell
spawned to execute the script.
SSEEEE AALLSSOO
_B_a_s_h _R_e_f_e_r_e_n_c_e _M_a_n_u_a_l, Brian Fox and Chet Ramey
_T_h_e _G_n_u _R_e_a_d_l_i_n_e _L_i_b_r_a_r_y, Brian Fox and Chet Ramey
_T_h_e _G_n_u _H_i_s_t_o_r_y _L_i_b_r_a_r_y, Brian Fox and Chet Ramey
_P_o_r_t_a_b_l_e _O_p_e_r_a_t_i_n_g _S_y_s_t_e_m _I_n_t_e_r_f_a_c_e _(_P_O_S_I_X_) _P_a_r_t _2_: _S_h_e_l_l _a_n_d _U_t_i_l_i_-
_P_o_r_t_a_b_l_e _O_p_e_r_a_t_i_n_g _S_y_s_t_e_m _I_n_t_e_r_f_a_c_e _(_P_O_S_I_X_) _P_a_r_t _2_: _S_h_e_l_l _a_n_d _U_t_i_l_i_-
_t_i_e_s, IEEE --
http://pubs.opengroup.org/onlinepubs/9699919799/
http://tiswww.case.edu/~chet/bash/POSIX -- a description of posix mode
@@ -6120,7 +6121,7 @@ FFIILLEESS
_~_/_._b_a_s_h_r_c
The individual per-interactive-shell startup file
_~_/_._b_a_s_h___l_o_g_o_u_t
The individual login shell cleanup file, executed when a login
The individual login shell cleanup file, executed when a login
shell exits
_~_/_._i_n_p_u_t_r_c
Individual _r_e_a_d_l_i_n_e initialization file
@@ -6134,14 +6135,14 @@ AAUUTTHHOORRSS
BBUUGG RREEPPOORRTTSS
If you find a bug in bbaasshh,, you should report it. But first, you should
make sure that it really is a bug, and that it appears in the latest
version of bbaasshh. The latest version is always available from
make sure that it really is a bug, and that it appears in the latest
version of bbaasshh. The latest version is always available from
_f_t_p_:_/_/_f_t_p_._g_n_u_._o_r_g_/_p_u_b_/_g_n_u_/_b_a_s_h_/.
Once you have determined that a bug actually exists, use the _b_a_s_h_b_u_g
command to submit a bug report. If you have a fix, you are encouraged
to mail that as well! Suggestions and `philosophical' bug reports may
be mailed to _b_u_g_-_b_a_s_h_@_g_n_u_._o_r_g or posted to the Usenet newsgroup
Once you have determined that a bug actually exists, use the _b_a_s_h_b_u_g
command to submit a bug report. If you have a fix, you are encouraged
to mail that as well! Suggestions and `philosophical' bug reports may
be mailed to _b_u_g_-_b_a_s_h_@_g_n_u_._o_r_g or posted to the Usenet newsgroup
ggnnuu..bbaasshh..bbuugg.
ALL bug reports should include:
@@ -6152,7 +6153,7 @@ BBUUGG RREEPPOORRTTSS
A description of the bug behaviour
A short script or `recipe' which exercises the bug
_b_a_s_h_b_u_g inserts the first three items automatically into the template
_b_a_s_h_b_u_g inserts the first three items automatically into the template
it provides for filing a bug report.
Comments and bug reports concerning this manual page should be directed
@@ -6169,10 +6170,10 @@ BBUUGGSS
Shell builtin commands and functions are not stoppable/restartable.
Compound commands and command sequences of the form `a ; b ; c' are not
handled gracefully when process suspension is attempted. When a
process is stopped, the shell immediately executes the next command in
the sequence. It suffices to place the sequence of commands between
parentheses to force it into a subshell, which may be stopped as a
handled gracefully when process suspension is attempted. When a
process is stopped, the shell immediately executes the next command in
the sequence. It suffices to place the sequence of commands between
parentheses to force it into a subshell, which may be stopped as a
unit.
Array variables may not (yet) be exported.