Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

Shell Script Unique Identifier Question

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Shell Script Unique Identifier Question
# 8  
Old 07-22-2008
You do not need to use tr to check for digits. In most modern shells this sort of check can be done entirely within the shell. For example in ksh93, assuming the number of digits is between 6 and 8:
Code:
$ str="my_identifier8859574"
$ id=${str/@(my_identifier)+({6,8}(\d))/\2}
$ print $id
8859574
$ [[ $id1 != @({6,8}(\d)) ]] && print "ERROR"
$

 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Add unique identifier from file to filetype in directory

I am trying to add a unique identifier to two file extensions .bam and .vcf in a directory located at /home/cmccabe/Desktop/index/R_2016_09_21_14_01_15_user_S5-00580-9-Medexome. The identifier is in $2 of the input file. What the code below is attempting to do is strip off the last portion... (21 Replies)
Discussion started by: cmccabe
21 Replies

2. Shell Programming and Scripting

Generate 10000 unique audio file of 2MB each using shell script.

Hi, I want 10000+ unique Audio file of approx 2MB each. How can i generate numerous audio files using shell script. Any tool, command or suggestions are welcome. If i give one audio seed file then can we create numerous unique files with same seed file? Any help is highly appreciable.... (11 Replies)
Discussion started by: sushil.kumar
11 Replies

3. Shell Programming and Scripting

Identifier in shell

Dear guys I need help here with syntax, I am trying to start script command to capture all user activities every day, I want the log file of each user to be named with his login ID + date time to overcome the possibility of over writing the log file if he logoff and login again. Here is was I wrote... (5 Replies)
Discussion started by: q8devilish
5 Replies

4. Shell Programming and Scripting

Select combination unique using shell script

Hi All, bash-3.00$ gzgrep -i '\ ExecuteThread:' /******/******/******/******/stdout.log.txt.gz <Jan 7, 2012 5:54:55 PM UTC> <Error> <WebLogicServer> <BEA-000337> < ExecuteThread: '414' for queue: 'weblogic.kernel.Default (self-tuning)' has been busy for "696" seconds working on the request... (4 Replies)
Discussion started by: osmanux
4 Replies

5. Shell Programming and Scripting

Shell script to count unique rows in a CSV

HI All, I have a CSV file of 30 columns separated by ,. I want to get a count of all unique rows written to a flat file. The CSV file is around 5000 rows The first column is a time stamp and I need to exclude while counting unique Thanks, Ravi (4 Replies)
Discussion started by: Nani369
4 Replies

6. Shell Programming and Scripting

Identifier In Shell script

Hi, I have a shell script and inside that shell script it calls a local .env file to set the environment for the shell script ,but the thing is that i got a error while running the script like ./myscript.sh it gives DB_NAME=dvcl021: is not an identifier that DB_Name is accessed from my .env... (6 Replies)
Discussion started by: malickhat
6 Replies

7. Shell Programming and Scripting

shell script to find and replace a line using a identifier

Hi all im having trouble starting with a shell script, i hope someone here can help me i have 2 files file1: 404905.jpg 516167 404906.jpg 516168 404917.psd 516183 404947.pdf 516250 file2: 516250 /tmp/RecyclePoster18241.pdf 516167 /tmp/ReunionCardFINAL.jpg 516168... (7 Replies)
Discussion started by: kenray
7 Replies

8. Shell Programming and Scripting

Urgent: selecting unique specific content of a file using shell script

Hi, I have a file whose content and format at places is as given below. print coloumn .... coloumn .... coloumn .... skip 1 line print coloumn ... skip 1 line I need to select the following : print coloumn .... coloumn .... coloumn... (2 Replies)
Discussion started by: jisha
2 Replies

9. Shell Programming and Scripting

Shell script to check the unique numbers in huge data

Friends, I have to write a shell script,the description is---- i Have to check the uniqueness of the numbers in a file. A file is containing 200thousand tickets and a ticket have 15 numbers in asecending order.And there is a strip that is having 6 tickets that means 90 numbers.I... (7 Replies)
Discussion started by: namishtiwari
7 Replies

10. Shell Programming and Scripting

Problem with shell script...ORA-00904:invalid identifier

Guys, Please suggest me what's wrong with this script? #!/usr/bin/sh ############################################################################## # Author : Bhagat Singh # # # Date : Nov 13,2006 #... (12 Replies)
Discussion started by: bhagat.singh-j
12 Replies
Login or Register to Ask a Question

LEARN ABOUT OPENSOLARIS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a    Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.11							    30 Jan 2004 							 script(1)