IF condition against a ARRAY in shell script


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting IF condition against a ARRAY in shell script
# 1  
Old 04-26-2010
IF condition against a ARRAY in shell script

Hi,

I want to check a particular string inserted by User to be checked against the values i already have in a ARRAY string using IF condition. Is this possible? if yes how to do that.
example :

i have a,b,c,d,e,f values in a array called values

i asked user to enter a value:
user entered b as a value
read uservalue

i have to check if the user entered value is present there inside my array using IF condition:
if [ $uservalue exist in ARRAY value ]

Last edited by kukretiabhi13; 04-26-2010 at 04:02 PM..
# 2  
Old 04-26-2010
Try something like this:
Code:
#!/bin/ksh
.
.
.

read ans

i=0
len=${#value[*]}

while [ $len -gt $i ]
do
  if [ "${value[$i]}" = "$ans" ]
  then
    # Do your stuff here
  fi
  i=$(( $i + 1 ))
done

I recommend you to read one of the tutorials here:

https://www.unix.com/answers-frequent...tutorials.html
# 3  
Old 04-26-2010
Code:
#!/bin/bash
ARRAY=( a b c d e f )
read -p "Enter element : " K
FOUND=0
for E in ${ARRAY[@]}
do	[ "$K" = "$E" ] && FOUND=1
done
echo -n "$K "; ((FOUND)) && echo "found" || echo "not found"

I use a flag here but if you only have to perform an action if found then use following code
Code:
#!/bin/bash
ARRAY=( a b c d e f )
read -p "Enter element : " K
for E in ${ARRAY[@]}
do	if [ "$K" = "$E" ]
        then echo "$K found"
        fi
done

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Pass C shell array to another C shell script(csh) and shell(sh)

Dear Friends, Please help me on this my script name is send.csh In this i have written the statement like this set args = ( city state country price ) I want to pass this array to another c shell called receiver.csh. and i want to use it in this c shell or how to pass to... (2 Replies)
Discussion started by: SA_Palani
2 Replies

2. Shell Programming and Scripting

If condition shell script beginner

Hi all I have the folloing process that needs checking often: ps -ef | grep ih bscsrtx 206 15901 0 11:28:10 pts/6 0:00 fih -r4 bscsrtx 218 15901 0 11:28:27 pts/6 0:01 aih bscsrtx 29763 15901 4 11:27:16 pts/6 0:59 rdh -prih root 429 27268 0 11:30:15 pts/td ... (13 Replies)
Discussion started by: fretagi
13 Replies

3. Shell Programming and Scripting

Need Help to add Condition in Shell Script..

Hi Team, I m very new to shell scripting , i want to add following condition in my script . Can anybody help me. There are three port in My node "$port" port_A port_B port_C I Want to add following Conditions in my script. If Node is connected to port_A and port_B script... (10 Replies)
Discussion started by: Ganesh Mankar
10 Replies

4. Shell Programming and Scripting

Substring check in IF condition in shell script

I want to check if the string has the substring in IF condition then process... i tried below but not working if ]; then ............. field can be "reserved1" ....reservedn / fillspaces1 ... fillspacesn (4 Replies)
Discussion started by: greenworld123
4 Replies

5. UNIX for Dummies Questions & Answers

While condition in shell script

while do if ;then read driverName else driverName="" fi done can anyone please explain what exactly is happening on 1st line...is it like the conditions being ORed...I have no clue about this. (4 Replies)
Discussion started by: rtagarra
4 Replies

6. Shell Programming and Scripting

Errors in if condition validations-Shell Script

Hello All, i am facing difficulty in validating the values, kindly help me in resolving the issue. Thanks a lot in advance. -Chandra Script:Test.sh #! /bin/sh # *************************************************************************** # Function to display help function usage()... (1 Reply)
Discussion started by: duddukuri
1 Replies

7. Shell Programming and Scripting

An issue with condition statement in shell script

Hello forum members. please go through the below mentioned issue and let me know the right solution. I have to write a script which runs another script .the executable script take input parmeters.so iam writing the the script below . Sample Code:Begins #! /bin/ksh echo " enter... (2 Replies)
Discussion started by: rajkumar_g
2 Replies

8. AIX

if condition in AIX5.3-10 shell script

True if file exists and has been modified since it was last read. if then command else exit fi i am on AIX5.3-10. it does not understand -N any other way. i can use -ot (file1 is older than file2), but prefer -N if possible. (3 Replies)
Discussion started by: tjmannonline
3 Replies

9. Shell Programming and Scripting

Help with shell script to check the condition.

:) Hi, I want to script for this scenerio, OSR Settings Scenario : We are looking to find all the *.a files from the following locations in the filesystem of a server. OSR Directories /etc /bin /usr/bin /usr/sbin /var/adm These *.a files should have the permissions on... (12 Replies)
Discussion started by: sakthilinux
12 Replies

10. Shell Programming and Scripting

need help with test condition in shell script

I'm new to scripting and I need help with a bourn shell script. What i'm trying to do is a test condition where "if the time is within 2 hours, it's true" and so on. The time is in the following format DATE=`/bin/date +"%Y%m%d%H%S"` for example, 20060907152000. So, what the script first... (9 Replies)
Discussion started by: pieman8080
9 Replies
Login or Register to Ask a Question

Featured Tech Videos