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UNIX for Dummies Questions & Answers
if statement problem
Post 91669 by bakunin on Sunday 4th of December 2005 07:16:43 PM
12-04-2005
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1. UNIX for Dummies Questions & Answers
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Hi I have a bash script like this
if
then
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echo "Enter the variable: " "
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Hi All,
I am writing an if statement to check multiple conditions, but when I try to execute the script it is breaking at the point of if statement by showing the issue below.
Code I am using is given below.
if -a ]
then
....
else
...
fi
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LEARN ABOUT DEBIAN
std::sub_match
std::sub_match< _BiIter >(3cxx) std::sub_match< _BiIter >(3cxx) NAME
std::sub_match< _BiIter > - SYNOPSIS
Inherits std::pair< _BiIter, _BiIter >. Public Types typedef iterator_traits < _BiIter >::difference_type difference_type" typedef _BiIter first_type typedef _BiIter iterator typedef _BiIter second_type typedef std::basic_string < value_type > string_type" typedef iterator_traits < _BiIter >::value_type value_type" Public Member Functions int compare (const sub_match &__s) const int compare (const string_type &__s) const int compare (const value_type *__s) const difference_type length () const operator string_type () const string_type str () const void swap (pair &__p) Public Attributes _BiIter first bool matched _BiIter second Detailed Description template<typename _BiIter>class std::sub_match< _BiIter > A sequence of characters matched by a particular marked sub-expression. An object of this class is essentially a pair of iterators marking a matched subexpression within a regular expression pattern match. Such objects can be converted to and compared with std::basic_string objects of a similar base character type as the pattern matched by the regular expression. The iterators that make up the pair are the usual half-open interval referencing the actual original pattern matched. Definition at line 757 of file regex.h. Member Typedef Documentation typedef _BiIter std::pair< _BiIter , _BiIter >::second_type [inherited] first_type is the first bound type Definition at line 90 of file stl_pair.h. Member Function Documentation template<typename _BiIter> int std::sub_match< _BiIter >::compare (const sub_match< _BiIter > &__s) const [inline] Compares this and another matched sequence. Parameters: s Another matched sequence to compare to this one. Return values: <0 this matched sequence will collate before s. =0 this matched sequence is equivalent to s. <0 this matched sequence will collate after s. Definition at line 818 of file regex.h. Referenced by std::operator!=(), std::operator<(), std::operator<=(), std::operator==(), std::operator>(), and std::operator>=(). template<typename _BiIter> int std::sub_match< _BiIter >::compare (const string_type &__s) const [inline] Compares this sub_match to a string. Parameters: s A string to compare to this sub_match. Return values: <0 this matched sequence will collate before s. =0 this matched sequence is equivalent to s. <0 this matched sequence will collate after s. Definition at line 831 of file regex.h. template<typename _BiIter> int std::sub_match< _BiIter >::compare (const value_type *__s) const [inline] Compares this sub_match to a C-style string. Parameters: s A C-style string to compare to this sub_match. Return values: <0 this matched sequence will collate before s. =0 this matched sequence is equivalent to s. <0 this matched sequence will collate after s. Definition at line 844 of file regex.h. template<typename _BiIter> difference_type std::sub_match< _BiIter >::length () const [inline] Gets the length of the matching sequence. Definition at line 775 of file regex.h. template<typename _BiIter> std::sub_match< _BiIter >::operator string_type () const [inline] Gets the matching sequence as a string. Returns: the matching sequence as a string. This is the implicit conversion operator. It is identical to the str() member function except that it will want to pop up in unexpected places and cause a great deal of confusion and cursing from the unwary. Definition at line 788 of file regex.h. template<typename _BiIter> string_type std::sub_match< _BiIter >::str () const [inline] Gets the matching sequence as a string. Returns: the matching sequence as a string. Definition at line 801 of file regex.h. Referenced by std::sub_match< _Bi_iter >::compare(), and std::operator<<(). Member Data Documentation _BiIter std::pair< _BiIter , _BiIter >::first [inherited] second_type is the second bound type Definition at line 92 of file stl_pair.h. Referenced by std::sub_match< _Bi_iter >::length(), std::sub_match< _Bi_iter >::operator string_type(), and std::sub_match< _Bi_iter >::str(). _BiIter std::pair< _BiIter , _BiIter >::second [inherited] first is a copy of the first object Definition at line 93 of file stl_pair.h. Referenced by std::sub_match< _Bi_iter >::length(), std::sub_match< _Bi_iter >::operator string_type(), and std::sub_match< _Bi_iter >::str(). Author Generated automatically by Doxygen for libstdc++ from the source code. libstdc++ Tue Nov 27 2012 std::sub_match< _BiIter >(3cxx)