Sponsored Content
Full Discussion: creating array variable
Top Forums Shell Programming and Scripting creating array variable Post 302124051 by scriptingmani on Thursday 28th of June 2007 10:09:03 AM
Old 06-28-2007
creating array variable

Hi all,

i am quite fimiliar with shell scripting but i wouldn't regard myself as a semi professional at it.

I am trying to create an array variable to read in 4 lines from a file using head and tail command in a pipeline and store each line into each array. I have done the scripting in unix but for some reason i keep getting syntax errors during runtime saying 'mon=' unexpected.

for the moment i am trying to create a simple script to store months Jan, Feb Mar Apr into array mon but its not having it and i don't know why. i did google searches and i tried a number of the examples i found but none work
i tried to use declare -a mon but it says "declare: not found" - is it something to do with the first line - #!/bin/bash?
#!/bin/bash

mon=( Jan Feb Mar Apr )

echo $mon

can someone please throw some light onto this becuase its doing my head in.

thanks in advance

Mani
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

creating a dynamic array in ksh

Hi, Is it possible to create a dynamic array in shell script. I am trying to get the list of logfiles that created that day and put it in a dynamic array. I am not sure about it. help me New to scripting Gundu (3 Replies)
Discussion started by: gundu
3 Replies

2. Shell Programming and Scripting

creating a dynamic array

i want to create an array the array elements are populated depending upon the number of entries present in a data file The data file is created dynamically how to achieve the same thanks (1 Reply)
Discussion started by: trichyselva
1 Replies

3. Programming

Creating an array to hold posix thread ids: Only dynamic array works

I am facing a strange error while creating posix threads: Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output. Snippet 1 This works: -------------- int *threadids; threadids = (int *) malloc (num_threads * sizeof(int)); ... (4 Replies)
Discussion started by: kmehta
4 Replies

4. Shell Programming and Scripting

creating variable array name

#!/bin/ksh #export CLASSPATH=$CLASSPATH:~dialp/cso/classes:/opt/oracle/product/8.1.6/jdbc/lib/classes12.zip #export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/oracle/product/8.1.6/lib DATE="`date '+%m%d%Y'`" PATH=.:$PATH export PATH town_name='123' town_name='123' town_name='345'... (1 Reply)
Discussion started by: priyanka3006
1 Replies

5. Shell Programming and Scripting

Creating array containing file names

I am wondering how I can save the file names (stored in $file or $fnames) in array which I can access with an index. alias MATH 'set \!:1 = `echo "\!:3-$" | bc -l`' set narg = $#argv while ($iarg < $narg) MATH iarg = $iarg + 1 set arg = $argv set opt = ` echo $arg | awk... (1 Reply)
Discussion started by: kristinu
1 Replies

6. Shell Programming and Scripting

Problem with array and creating directories

I have an interesting requirement. I have declaried an array like :- arr=`find . ! -name "." | xargs -I {} echo {} | cut -c 2-${#}` Then i will try to access the array elements like :- i=0 for i in ${arr}; do Here comes the confusions, the array elements are basically dir and files stored... (2 Replies)
Discussion started by: Renjesh
2 Replies

7. Shell Programming and Scripting

Creating bash array name from variable

Hi gurus, I need to create arrays from variables, via a loop. The issue I have is with the array name creation. How do I use a variable to define an array? I want to do something like declare -a $H where $H is my loop variable. I then need to add items to each array I've created,... (3 Replies)
Discussion started by: melias
3 Replies

8. UNIX for Dummies Questions & Answers

Creating an array

I am having trouble creating an array, I've tried everything google gives me but it won't work, and it seems as though it should. Using Ubunto 12.04 and bash. #!/bin/bash ARRAY=one two three echo ${ARRAY}When I do this I receive the error : two: not found and : Bad substitution When I... (3 Replies)
Discussion started by: jrymer
3 Replies

9. Shell Programming and Scripting

Creating array from file

Dear community, how can I create an array from file taking only the 4th field? out.txt file is something like this: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20So the final array should be: 4 8 12 16 20With this command I created an array with all the fields, but I need only the 4th... (13 Replies)
Discussion started by: Lord Spectre
13 Replies

10. Shell Programming and Scripting

Creating an array with options as an argument!

Hi Guys, I am writting a c shell script where I have to parse an input argument with options that could be an array. So far I have achieved where I could parse a single argument with option but failed when I try to create an array with the options. For example: This is on terminal window:... (2 Replies)
Discussion started by: dixits
2 Replies
sh(1)							      General Commands Manual							     sh(1)

NAME
sh - Shell, the standard command language interpreter DESCRIPTION
[Tru64 UNIX] Tru64 UNIX provides two command interpreters with the name sh. The XCU5.0 and POSIX.2 compliant command interpreter sh is available in the file /usr/bin/posix/sh and is described in the sh(1p) reference page. The Bourne shell, historically known as sh, is available in the file /usr/bin/sh and is described in the sh(1b) reference page. [Tru64 UNIX] Your initial, or login, shell is determined by your entry in the file /etc/passwd. This file can be changed only by your sys- tem administrator. You must use whatever procedures are in place at your location to have this entry changed. [Tru64 UNIX] If available on your system, you may use the passwd -s or the chsh commands to change your login shell. Note This option is not available if your site manages passwords through the Network Information Service (NIS) facility. Check with your system administrator. [Tru64 UNIX] Subsequent shells spawned from the initial shell depend on the value in the environment variable BIN_SH. If this variable is set to xpg4, the POSIX shell is started. If this variable is set to svr4, an SVR4 compliant version of the shell is started. If this vari- able is unset, the Bourne shell is started. If this variable is set to any other value, an error is reported and the results are unpre- dictable. See the EXAMPLES section for information on setting this variable. NOTES
[Tru64 UNIX] With Tru64 UNIX Version 4.0 the Korn shell, /usr/bin/ksh is the same as the POSIX shell /usr/bin/posix/sh. RESTRICTIONS
[Tru64 UNIX] The file /etc/shells must include entries for both the POSIX shell /usr/bin/posix/sh and the Bourne shell, /usr/bin/sh. If this file is incorrect, see your system administrator. EXAMPLES
Using the Bourne, Korn, or POSIX shell, to set the variable BIN_SH to use the POSIX/ XCU5.0compliant shell, enter: BIN_SH=xpg4 export BIN_SH Using the Bourne, Korn, or POSIX shell, to set the variable BIN_SH to use the SVR4 compliant shell, enter: BIN_SH=svr4 export BIN_SH Using the Bourne, Korn, or POSIX shell, to unset the variable BIN_SH, enter: unset BIN_SH Using the C/ shell, to set the variable BIN_SH to use the POSIX/XCU5.0 compliant shell, enter: setenv BIN_SH xpg4 Using the C/ shell, to set the variable BIN_SH to use the SVR4 compliant shell, enter: setenv BIN_SH svr4 Using the C/ shell, to unset the variable BIN_SH, enter: unsetenv BIN_SH FILES
User profile. Contains user information, including the login shell name. Contains the names of available and permitted shells. SEE ALSO
Commands: csh(1), ksh(1), Bourne shell sh(1b), POSIX shell sh(1p), passwd(1) Files: passwd(4), shells(4) Standards: standards(5) sh(1)
All times are GMT -4. The time now is 06:21 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy