Array size in C shell scripting

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Array size in C shell scripting
# 1  
Old 01-31-2020
Array size in C shell scripting


I would like to know how to define the size of the array in c shell scripting.
# 2  
Old 01-31-2020
set x=(40 10 30 20)
echo "${#x}"

Compare with bash:
x=(40 10 30 20)
echo "${#x[@]}"

In bash ${#x} is like ${#x[0]} i.e. the (string-)length of the first element.
# 3  
Old 01-31-2020
Is it possible to define the size of the array instead of directly giving the input?

Like x is the array variable and it has the size of 10. So that I could pass the input.
# 4  
Old 01-31-2020
The c-shell is very primitive (and buggy).
You cannot declare an array. You have to use the =( ) syntax to extend it.
Clear an array: set x=()
Append an element: set x=($x:q "last")
Prepend an element set x=("first" $x:q)
Change an existing element: set x[1]="new"
These 2 Users Gave Thanks to MadeInGermany For This Post:
# 5  
Old 02-01-2020
Thank you.

--- Post updated at 01:41 PM ---

Thank you.
# 6  
Old 02-01-2020
Is there any pdf document to learn about c shell scripting? And one more thing is there any way to open the text document using shell scripting?
# 7  
Old 02-03-2020
I cannot recommend the C-shell at all.
My own experience is, it is sufficient for the command line, but it is full of bad surprises if you are going to write longer scripts.
The Internet is full of warnings:
Why you should not use C shell by Chris F.A. Johnson
Csh Programming Considered Harmful
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Convert String to an Array using shell scripting in JSON file.

This is the sample json I have pasted here. I want all the IP address strings to be converted into an array. For example "" has to be converted to everywhere in the JSON. There are multiple IPs in a JSON I am pasting one sample object from the JSON. But the IPs already in an Array... (11 Replies)
Discussion started by: vinshas1
11 Replies

2. Shell Programming and Scripting

How to get the file size and count of a table using shell scripting?

Hi there, im a beginner to the shell scripting.i trying to extract a table from a db(IMD) and i have to get the count of that table and size of the file. can you help me out how to write the shall scriping for the above query. (2 Replies)
Discussion started by: pawanmamidi
2 Replies

3. Shell Programming and Scripting

Assigning array values using awk in shell scripting

hi My script as below #!/bin/ksh for i in `seq 1 7` do a=$(awk '{print $i}' /home/rama/expenese.txt) done for i in `seq 1 7` do echo "${a}" done content of expense.txt is as below 5032 210179 3110 132813874 53488966 11459221 5300794 I want output as... (6 Replies)
Discussion started by: Ramakrishna V
6 Replies

4. Shell Programming and Scripting

array + if in linux shell scripting

Hi, I am having two set of files with different number of columns and rows. A set of files have only single row with 20 columns. B set of files have 1000s of rows with 5 columns. both set contains equal number of files. I want to save all the 20 columns of A in variables one by one and... (21 Replies)
Discussion started by: CAch
21 Replies

5. Shell Programming and Scripting

Use Awk and Array to get total size of files

Hello all, I need to do scripts total up the size in selected extension file for example and segmentation.avi is in Label Media. For file info.doc and calc.xls in Label Document. I need output will be like this: count 1 Media,,2 GB count 2 Document,,4 GB My problem is,... (16 Replies)
Discussion started by: sheikh76
16 Replies

6. Programming

size of char array in c

i have to store a data more than 100000. i don't know the size of the data whether it may be 100000 or 1000000. so how can i define variable size; example char abc; but i don't know the size so how can i give array size?? in one sentence how can i give the array size dynamically so that i... (6 Replies)
Discussion started by: phani_sree
6 Replies

7. Shell Programming and Scripting

Size of an array in sh shell script

Is there a way to find out the size of an array in sh shell script? Thanks. (1 Reply)
Discussion started by: trivektor
1 Replies

8. UNIX for Advanced & Expert Users


Hi, Do anyone know what's the max size of array (in awk) can be store before hit any memory issue. Regards (3 Replies)
Discussion started by: epall
3 Replies

9. Shell Programming and Scripting

difference between AIX shell scripting and Unix shell scripting.

please give the difference between AIX shell scripting and Unix shell scripting. (2 Replies)
Discussion started by: haroonec
2 Replies

10. Programming

Array size

In a C program is there any limit on the size of an array? (4 Replies)
Discussion started by: Nadeem Mistry
4 Replies
Login or Register to Ask a Question

Featured Tech Videos