arrays in C shell Post: 302260106

Sponsored Content

Top Forums Shell Programming and Scripting arrays in C shell Post 302260106 by drl on Wednesday 19th of November 2008 04:56:45 PM

11-19-2008

Registered User

Hi.

Here is a demo script:

Code:

#!/usr/bin/env tcsh

# @(#) s1       Demonstrate setting array variable in csh.

echo
echo "(Versions displayed with local utility version)"
sh -c "version >/dev/null 2>&1" && version "=o" tcsh
echo

set ARRAY = ( a b c d e f)
echo ARRAY is $ARRAY

set master_array =
set i = 0

# Copy first 3 items only.

while ( $i < 4 )
# master_array[i] = $ARRAY[i]
set master_array = ( $master_array $ARRAY[$i] )
@ i++
end
# done

echo
echo master_array is $master_array

echo
echo " Easier transfer:"
set first = 2
set last  = 4
set ar = ( $ARRAY[$first-$last] )
echo ar is $ar

exit 0

Producing:

Code:

% ./s1

(Versions displayed with local utility version)
Linux 2.6.11-x1
tcsh 6.13.00

ARRAY is a b c d e f

master_array is a b c

 Easier transfer:
ar is b c d

Look over http://www.grymoire.com/Unix/Csh.html , Google for tutorial csh scripting yields about 250K hits. See also man csh ... cheers, drl

PS Standard advice: avoid scripting in csh family; use Bourne shell family whenever possible.

Last edited by drl; 11-19-2008 at 06:05 PM..

drl

View Public Profile for drl

Find all posts by drl

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bourne Shell and Arrays

Hi everyone, first post here so please be gentle :-) I normally likle to script in Bourne Shell simply for guarenteed compatibility across any system I might run across but this latest problem has me stumped. Arrays is a rather significant construct missing from sh and after finding a way to...

2. Shell Programming and Scripting

arrays in shell script

Hi, can we use arrays in shell script? I have this so far: #!/bin/sh isql -Usa -P -S DBSERVER -o output << EOF sp_transactions "state", "prepared", "xactname" go / EOF the file 'output'' will be have many entries and I want to caputre the transaction names only: grep 000 output works...

3. Shell Programming and Scripting

how to use arrays in c shell

hi :) i need help to explain arrays 2D in c shell like this in c++ int a

4. Shell Programming and Scripting

shell / awk arrays

I have a bash shell script that sources a data file, the data file has array values such as: #--data file ---# sg_name="db1" sg_size="12892" sg_allow="50000" sg_name="db2" sg_size="12892" sg_allow="50000" export sg_name sg_size sg_allow #--end data file --# In my shell script...

5. Shell Programming and Scripting

C shell arrays

how do you declare an array in the C shell and loop through each element?

6. Shell Programming and Scripting

I need help with arrays in C Shell

Hi guys could you please post links that explain how to use and manipulate arrays in c shell (.csh files) ? examples are useful too :rolleyes:

7. Shell Programming and Scripting

Using arrays in shell

I have three arrays. One is Master array and that has list of other array in config file. for e.g (for simplicity I have only defined array with 2 elements each) set +A MASTERARRAY SQLUPDATE_ONETIME SQLUPDATE_DAILY END_OF_ARRAY set +A SQLUPDATE_ONETIME update12 update22 END_OF_ARRAY...

8. Shell Programming and Scripting

Shell script for 2 arrays

I have 2 arrays abc and xyz abc = ( a b c d e f g h i j k l m n o p q r s t u v w x y z ) and xyz = ( b c d e f ) lets assume a .... z are the file name. I have to perform a pattern replacement on each file present in abc array accept the files i have in xyz array. and i am doing...

9. Shell Programming and Scripting

Shell arrays need help

Ok so spaces separate elements. What if you wanted an element to have a space in it? For instance: nums="one two three and a half" where "three and a half" is THE SAME element?

10. Shell Programming and Scripting

Arrays in Shell Scripts

I have defined an array like this: set -A MYARRAY MYARRAY=file1 MYARRAY=file2 MYARRAY=file3 MYARRAY=file4 i=0 while } ]] do echo "File Name $i :" ${MYARRAY} i=`expr $i + 1 ` echo "value of i=" $i done This works perfectly and shows...

LEARN ABOUT FREEBSD

echo

ECHO(1) 						    BSD General Commands Manual 						   ECHO(1)

NAME

     echo -- write arguments to the standard output

SYNOPSIS

     echo [-n] [string ...]

DESCRIPTION

     The echo utility writes any specified operands, separated by single blank (' ') characters and followed by a newline ('
') character, to the
     standard output.

     The following option is available:

     -n    Do not print the trailing newline character.

     The end-of-options marker -- is not recognized and written literally.

     The newline may also be suppressed by appending 'c' to the end of the string, as is done by iBCS2 compatible systems.  Note that the -n
     option as well as the effect of 'c' are implementation-defined in IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002.  For porta-
     bility, echo should only be used if the first argument does not start with a hyphen ('-') and does not contain any backslashes ('').  If
     this is not sufficient, printf(1) should be used.

     Most shells provide a builtin echo command which tends to differ from this utility in the treatment of options and backslashes.  Consult the
     builtin(1) manual page.

EXIT STATUS

     The echo utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     builtin(1), csh(1), printf(1), sh(1)

STANDARDS

     The echo utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002.

BSD
								 November 12, 2010							       BSD

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bourne Shell and Arrays

Discussion started by: Unbeliever

2. Shell Programming and Scripting

arrays in shell script

Discussion started by: melanie_pfefer

3. Shell Programming and Scripting

how to use arrays in c shell

Discussion started by: hgphsf

4. Shell Programming and Scripting

shell / awk arrays

Discussion started by: lochraven