diff options
Diffstat (limited to 'builtins/shift.def')
| -rw-r--r-- | builtins/shift.def | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/builtins/shift.def b/builtins/shift.def index e20b4d5..3213086 100644 --- a/builtins/shift.def +++ b/builtins/shift.def @@ -1,23 +1,22 @@ This file is shift.def, from which is created shift.c. It implements the builtin "shift" in Bash. -Copyright (C) 1987-2003 Free Software Foundation, Inc. +Copyright (C) 1987-2009 Free Software Foundation, Inc. This file is part of GNU Bash, the Bourne Again SHell. -Bash is free software; you can redistribute it and/or modify it under -the terms of the GNU General Public License as published by the Free -Software Foundation; either version 2, or (at your option) any later -version. +Bash is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. -Bash is distributed in the hope that it will be useful, but WITHOUT ANY -WARRANTY; without even the implied warranty of MERCHANTABILITY or -FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -for more details. +Bash is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. -You should have received a copy of the GNU General Public License along -with Bash; see the file COPYING. If not, write to the Free Software -Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. +You should have received a copy of the GNU General Public License +along with Bash. If not, see <http://www.gnu.org/licenses/>. $PRODUCES shift.c @@ -39,8 +38,13 @@ $PRODUCES shift.c $BUILTIN shift $FUNCTION shift_builtin $SHORT_DOC shift [n] -The positional parameters from $N+1 ... are renamed to $1 ... If N is +Shift positional parameters. + +Rename the positional parameters $N+1,$N+2 ... to $1,$2 ... If N is not given, it is assumed to be 1. + +Exit Status: +Returns success unless N is negative or greater than $#. $END int print_shift_error; @@ -57,7 +61,8 @@ shift_builtin (list) register int count; WORD_LIST *temp; - times = get_numeric_arg (list, 0); + if (get_numeric_arg (list, 0, ×) == 0) + return (EXECUTION_FAILURE); if (times == 0) return (EXECUTION_SUCCESS); |