Top Forums Shell Programming and Scripting Array based selection of values by selecting either index or member Post 303045468 by nezabudka on Thursday 26th of March 2020 08:37:04 AM
Old 03-26-2020
Need to refine error handling
Code:
choose() {
  select button in $@ Quit; do
    case $button in
      Quit)
        echo $REPLY - $button
        break
        ;;
      "") 
        echo ERROR try again
        continue
        ;;
      *)  
        echo you press $REPLY and selected $button
    esac
done
}

choose $listofitems

This User Gave Thanks to nezabudka For This Post:
 

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

why the inode index of file system starts from 1 unlike array index(0)

why do inode indices starts from 1 unlike array indexes which starts from 0 its a question from "the design of unix operating system" of maurice j bach id be glad if i get to know the answer quickly :) (0 Replies)
Discussion started by: sairamdevotee
0 Replies

2. UNIX for Dummies Questions & Answers

wh inode index starts from 1 unlike array index (0)

brothers why inode index starts from 1 unlike array inex which starts from 0 its a question from the design of unix operating system of maurice j.bach i need to know the answer urgently...someone help please (1 Reply)
Discussion started by: sairamdevotee
1 Replies

3. Programming

random array index returning values not contained

For kicks I wrote up a Password generator after lunch. Let me start with the code: unsigned int x,y,z,c; unsigned int KISS(); unsigned int devrand(); int main( int argc, char** argv ) { int i, j = 1; char pwd = "abcdefghijklmnopqrstuvwxyz" ... (5 Replies)
Discussion started by: VRoemer
5 Replies

4. Shell Programming and Scripting

PERL - Selecting specific files based on 'date stamp' values

Hi, I've list of files in a directory, which have date stamp value in their names. ex: abc_data_20071102.csv, abc_data_20091221.csv, abc_data_20100110.csv, abc_data_20100222.csv, abc_data_20080620.csv,... etc., I need to select and process only files, within the given date... (4 Replies)
Discussion started by: ganapati
4 Replies

5. Shell Programming and Scripting

Selecting rows based on values in columns

Hi My pipe delimited .txt file contains rows with 10 columns. Can anyone advise how I output to file only those rows with the letters ‘ci' as the first 2 characters in the 3rd column ? Many thanks (4 Replies)
Discussion started by: malts18
4 Replies

6. Programming

Selecting array values

I have two arrays DIST(1:NCOF) and X(1:NX) Let NCOF = 5 and NX = 15, with DIST = and X = I want to create an array that puts a zero if DIST is outside the region in X, otherwise putting 1. In this example I should get RES = Using DIST = would give RES = The values in... (6 Replies)
Discussion started by: kristinu
6 Replies

7. Shell Programming and Scripting

Selecting lowest and highest values in columns 1 and 2, based on subsets in column 3

Hi, I have a file with the following columns: 361459 447394 CHL1 290282 290282 CHL1 361459 447394 CHL1 361459 447394 CHL1 178352861 178363529 AGA 178352861 178363529 AGA 178363657 178363657 AGA Essentially, using CHL1 as an example. For any line that has CHL1 in... (2 Replies)
Discussion started by: hubleo
2 Replies

8. Shell Programming and Scripting

build array name based on loop index

Hi, I am new to perl and I have the following query please help here. I have following array variables declaration @pld1 = qw(00 01 02 03 04 05); @pld2 = qw(10 11 12 13 14 15); for(my $k=1;$k<=2;$k++) { //I want here to use @pld1 if $k is 1 // and @pld2 if $k is 2. How to do... (3 Replies)
Discussion started by: janavan
3 Replies

9. Shell Programming and Scripting

Bash 3.2 - Array / Regex - IF 3rd member in array ends in 5 digits then do somthing...

Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help. pesudo code if == ENDSINFIVEINTS ]]; then do... (4 Replies)
Discussion started by: briandanielz
4 Replies

10. Shell Programming and Scripting

Find minimum and maximum values based on column with associative array

Hello, I need to find out the minimum and maximum values based on specific column, and then print out the entire row with the max value. Infile.txt: scf6 290173 290416 . + X_047241 T_00113118-1 scf6 290491 290957 . + X_047241 T_00113118-2 scf6 290898 290957 . + X_047241 T_00113119-3 scf6... (2 Replies)
Discussion started by: yifangt
2 Replies
xpc_array_create(3)					   BSD Library Functions Manual 				       xpc_array_create(3)

NAME
xpc_array_create -- creation and management of XPC arrays SYNOPSIS
#include <xpc/xpc.h> xpc_object_t xpc_array_create(const xpc_object_t *objects, size_t count); void xpc_array_set_value(xpc_object_t array, size_t index, xpc_object_t value); void xpc_array_append_value(xpc_object_t array, xpc_object_t value); xpc_object_t xpc_array_get_value(xpc_object_t array, size_t index); size_t xpc_array_get_count(xpc_object_t array); bool xpc_array_apply(xpc_object_t array, xpc_array_applier_t applier); void xpc_array_set_bool(xpc_object_t array, size_t index, bool value); void xpc_array_set_int64(xpc_object_t array, size_t index, int64_t value); void xpc_array_set_uint64(xpc_object_t array, size_t index, uint64_t value); void xpc_array_set_double(xpc_object_t array, size_t index, double value); void xpc_array_set_date(xpc_object_t array, size_t index, int64_t value); void xpc_array_set_data(xpc_object_t array, size_t index, const void *bytes, size_t length); void xpc_array_set_string(xpc_object_t array, size_t index, const char *value); void xpc_array_set_uuid(xpc_object_t array, size_t index, const uuid_t value); void xpc_array_set_fd(xpc_object_t array, size_t index, int value); void xpc_array_set_connection(xpc_object_t array, size_t index, xpc_connection_t value); bool xpc_array_get_bool(xpc_object_t array, size_t index); int64_t xpc_array_get_int64(xpc_object_t array, size_t index); uint64_t xpc_array_get_uint64(xpc_object_t array, size_t index); double xpc_array_get_double(xpc_object_t array, size_t index); int64_t xpc_array_get_date(xpc_object_t array, size_t index); const void * xpc_array_get_data(xpc_object_t array, size_t index, size_t *length); const uint8_t * xpc_array_get_uuid(xpc_object_t array, size_t index); const char * xpc_array_get_string(xpc_object_t array, size_t index); int xpc_array_get_fd(xpc_object_t array, size_t index); xpc_connection_t xpc_array_get_connection(xpc_object_t array, size_t index); ARRAYS
XPC arrays are collections of XPC objects ordered by index. The index is zero-based. XPC arrays are contiguous, and values must exist at all indexes between zero and the greatest index of the array. A hole in the array can be simulated by using a null object as returned by xpc_null_create(3). CREATION
The xpc_array_create() function returns a newly created array. The caller may optionally provide objects, a C array of XPC object references, to initialize the array. The count is used to specify the size of the C array. If objects is NULL, then count must be zero. If count speci- fies more elements than are actually present in values or if values is NULL and count is non-zero, the behavior is undefined. GETTING AND SETTING VALUES
The xpc_array_append_value() function may be used to append a value to the end of an array. This operation increases the count of the values in the array by one. The value of a specific index in the array may be set using the xpc_array_set_value() function. The value must be non-NULL, and the index must already exist (i.e. less than the count provided at creation or extended through previous append operations). The value at a specific index of an array may be retrieved using the xpc_array_get_value() function. The result of getting a non-existing index (i.e. one that was not specified at creation or through a previous append operation) in undefined. PRIMITIVE GET AND SET FUNCTIONS
Various functions exist for retrieving primitive C and operating system types directly from an array without the need for an intermediate boxed object. See xpc_object(3) for more information. The special XPC_ARRAY_APPEND constant may be used to append a value to the end of the array instead of operating on a specific index. SEE ALSO
xpc_object(3), xpc_objects(3), xpc_dictionary_create(3) Darwin 1 July, 2011 Darwin

Featured Tech Videos

All times are GMT -4. The time now is 07:26 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy