search for partial sting -grep/awk?

Computing.Net > Forums > Unix > search for partial sting -grep/awk?

Computing.Net: Over 1,000,000 posts about all things technology related! Over 90% answered within 24 hours! Click here to sign up now, it's free!

search for partial sting -grep/awk?

Original Message

Name: ihsail
Date: August 31, 2005 at 08:03:05 Pacific
Subject: search for partial sting -grep/awk?
OS: Unix
CPU/Ram: Shell

Comment:

Hi,
Please help...
I would like to do the following:
I have a file name num_key.txt, this file only contains one line.
Content of file:
/usr/home/data/abc-212-20050801.txt
Content changes, it can be the following:
aa-313-20050801.txt
I need to extract the "212" from this line and use it as a parameter for something else. The 3-digit number is always between the dashes "-###-".
How do I "extract" this 3-digit number from the file and pass it to a variable?
Thank you very much.

ihsail

Report Offensive Message For Removal

Response Number 1

Name: David Perry
Date: August 31, 2005 at 10:53:40 Pacific

Reply:

var=`cut -f 2 -d '-' num_key.txt`
var=`awk -F"-" '{ print $2 }' num_key.txt`

Report Offensive Follow Up For Removal

Response Number 2

Name: nails
Date: August 31, 2005 at 11:01:07 Pacific

Reply:

There are probably better solutions, but in awk you can change the field separator to a "-" and the second field should be your answer:
#!/bin/ksh
var=$(awk ' BEGIN { FS = "-" } { print $2 } ' num_key.txt)
echo $var

Report Offensive Follow Up For Removal


how to search for tab in grep SEARCH FOR STING IN TXT FILES search for "period" awk	awk search for word using variable Search a table for partial name grep search for string in files and folders