|
|
Sponsored Content
Top Forums
UNIX for Dummies Questions & Answers
dynamic variables
Post 302231423 by max_payne1234 on Tuesday 2nd of September 2008 09:30:28 AM
09-02-2008
dynamic variables
I am new to unix and the following problem is bugging me.
var1="hello1"
var2="hello2"
var3="hello3"
counter=1
while [ $counter -le 3]
do
echo $var$counter
done
the idea here is to display the value of "var" based on the counter.
I am using the korn shell. I used array here but the problem is that I am executing the script from another script and so the prompt comes as "-A bad option"
Can the above problem be done in another way i.e without using arrays.
Can eval be useful here? please help.
code snippet for this would be very helpful
TIA
var1="hello1"
var2="hello2"
var3="hello3"
counter=1
while [ $counter -le 3]
do
echo $var$counter
done
the idea here is to display the value of "var" based on the counter.
I am using the korn shell. I used array here but the problem is that I am executing the script from another script and so the prompt comes as "-A bad option"
Can the above problem be done in another way i.e without using arrays.
Can eval be useful here? please help.
code snippet for this would be very helpful
TIA
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Gurus,
I have a requirement of writting the shell script where it should ask me two values
FND_TOP=/d02/app/oracle/xxx/fnd/11.5.0
CDCRM_TOP=/d02/app/oracle/xxx/cdcrm/11.5.0
and then keep these values stored as variables for the execution of rest of the script.
Because, I have to... (2 Replies)
Discussion started by: isingh786
2 Replies
2. Programming
Hi,
is it possible in C to allocate dynamically a global variable?? (3 Replies)
Discussion started by: littleboyblu
3 Replies
3. Shell Programming and Scripting
Hi All,
Shell is ksh
I've given portion of the script here to explain the problem.
It will accept 2 input parameters .
in_file1=$1
in_file2=$2
outbound_dir=/home/outbound
for i in 1 2
do
eval file$i=$outbound_dir/\$in_file$i
eval echo "filename is \$file$i"
... (4 Replies)
Discussion started by: kk17
4 Replies
4. Shell Programming and Scripting
Hi,
I need some direction with the following. The below code is semi-psuedo code which will hopefully make it easier to understand what I am trying to achieve:
for i in `echo ${testarray
}`
do
let c=c+1
eval "first$c=$i"
while... (4 Replies)
Discussion started by: yonderboy
4 Replies
5. Shell Programming and Scripting
Code:
$ cat test.bash
#!/bin/bash
job=$1
steps=$2
num=$(echo "$@" | wc -w)
Example Submission:
$ ./test.bash BS01 3 1 2 3
What: (2 Replies)
Discussion started by: mkastin
2 Replies
6. Shell Programming and Scripting
Hello,
so i'm making a script, using dynamic variables and trying to expand them. So far it hasn't worked out too well so it seems that I need some help from you, the elite.
Example:
#!/bin/sh
counter=0
until (($counter>5))
counter2=1
until (($counter2>6)); do
if ;... (5 Replies)
Discussion started by: TehOne
5 Replies
7. Shell Programming and Scripting
Greetings all,
Been trying to do my Googling and forum searches but can't seem to lock in on a solution.
I have a script that parses a log and collects all the uniq events to a flat file. Some days might have 50 unique events, other days might have 75. (Hence my reference to dynamic.)
... (2 Replies)
Discussion started by: sjrupp
2 Replies
8. Shell Programming and Scripting
Hi All,
I am really struggling to solve this problem, this might be small but I am not able to, can somebody help me?
I have few directories and these directories receives text files in large amount with in fraction of seconds. So I just want to send all the files in current directory to... (2 Replies)
Discussion started by: VasuKukkapalli
2 Replies
9. Shell Programming and Scripting
Hi all,
I want to dynamically set variables in a bash script. I made a naive attempt in a while loop that hopefully can clarify the idea.
n=0; echo "$lst" | while read p; do n=$(($n+1)); p"$n"="$p"; done
The error message is:
bash: p1=line1: command not found
bash: p2=line2: command... (8 Replies)
Discussion started by: jeppe83
8 Replies
10. Shell Programming and Scripting
Hi ,
i am unable to generate dynamic variables can any one please help me on the below issue
j=1
{record_count_"$j"}=`db2 -xselect substr\(job_name,24\) rec_count from $libname.audit_table_nrt where job_name like \'DATAMART_DEL_RUN%\' and STS_FLAG=\'E\' and seq_no=$i`
echo " record... (3 Replies)
Discussion started by: bhaskar v
3 Replies
LEARN ABOUT PHP
wincache_ucache_cas
WINCACHE_UCACHE_CAS(3) 1 WINCACHE_UCACHE_CAS(3) wincache_ucache_cas - Compares the variable with old value and assigns new value to it SYNOPSIS
bool wincache_ucache_cas (string $key, int $old_value, int $new_value) DESCRIPTION
Compares the variable associated with the $key with $old_value and if it matches then assigns the $new_value to it. PARAMETERS
o $key - The $key that is used to store the variable in the cache. $key is case sensitive. o $old_value - Old value of the variable pointed by $key in the user cache. The value should be of type long, otherwise the function returns FALSE. o $new_value - New value which will get assigned to variable pointer by $key if a match is found. The value should be of type long, otherwise the function returns FALSE. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Using wincache_ucache_cas(3) <?php wincache_ucache_set('counter', 2922); var_dump(wincache_ucache_cas('counter', 2922, 1)); var_dump(wincache_ucache_get('counter')); ?> The above example will output: bool(true) int(1) SEE ALSO
wincache_ucache_inc(3), wincache_ucache_dec(3). PHP Documentation Group WINCACHE_UCACHE_CAS(3)