• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1000
  • Last Modified:

Regular Expression to extract a number from a variable value

Hi,

I am getting different set of values in a variable. These values can be adminWash4567.sh adminWash4567.txt eastLA7456.sh eastLA7456.txt westLA7825 oldSFB8523 etc. I basically am trying to extract the last 4 digits of the value which starts with "admin".
I think it should work something like this

if the value starts with "admin" save last 4 digits in a variable before the "." (as in adminWash4567.sh) and exit

it would be great if you can suggest a way to do this
0
LordSM
Asked:
LordSM
3 Solutions
 
TintinCommented:
A generic solution is



value='adminWash4567.sh'
result=`echo "$value" | sed "s/admin.*\([0-9][0-9][0-9][0-9]\).*/\1/"`
echo $result

Open in new window

0
 
omarfaridCommented:
try

var=`echo  adminWash4567.sh | sed 's/[a-zA-Z\.]*//' | awk -F'.' '{ print $1 }'`
0
 
LordSMAuthor Commented:
Generic solution works

value='adminWash4567.sh'
result=`echo "$value" | sed "s/admin.*\([0-9][0-9][0-9][0-9]\).*/\1/"`
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now