Visit Our UNIX and Linux User Community


'tr' confusion


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers 'tr' confusion
# 1  
Old 12-05-2007
'tr' confusion

Good day, everyone!
Could anybody explain me the following situation.
If I'm running similar script:
Code:
Var="anna.kurnikova"
Var2="Anna Kurn"
echo $Var | tr -t  "$Var" "$Var2"

Why the output is :
Code:
anna KurniKova

instead of Anna Kurnikova?
Smilie
Thank you in advance for any explanations
Smilie
# 2  
Old 12-06-2007
Why are you telling it to truncate the first var? I'd suggest just running tr as normal without the truncate commandline option - should do what you want.

Edit: It's also not a supported flag on many implentations of tr so isn't very portable
# 3  
Old 12-06-2007
What i'm trying to achieve is to combine those two variables so the output would look like a proper name. If i'm running 'tr' on it's own the result is really messy, looks like a single letter substituion:
Code:
 nnnn nurnnnnnn

And the reason for truncating, is to bring both Var's to equal lenght.
 

Previous Thread | Next Thread
Test Your Knowledge in Computers #592
Difficulty: Medium
Suppose we want to sort a huge collection of 1 trillion, 10^12, elements. Doing so with Selection Sort or Insertion Sort would require about n^2 = (10^12)^2 = 10^24 or 1 sextillion comparisons.
True or False?

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Confusion in hash

Hi folks, If a declare a direct hash , then the hash element works fine. my %test = ("test",1); print %test; print "\n"; Here in the above, the name of the hash is predeclared... Suppose now I need to create the hash elements dynamically in the for loop. $test="hash"; my... (1 Reply)
Discussion started by: scriptscript
1 Replies

2. Shell Programming and Scripting

confusion in use of exit 0

hi i am new to shell scripting. i was going thru the part option and arguments. on this section i fail to understand the use of exit 0 in below example . #!/bin/sh USAGE="Usage: $0 " case "$1" in -t) TARGS="-tvf $2" ;; -c) TARGS="-cvf $2.tar $2" ;; *) echo "$USAGE" exit 0 ;; esac... (13 Replies)
Discussion started by: scriptor
13 Replies

3. Shell Programming and Scripting

Confusion with PS

Hello All, I have a problem in counting number of process getting run with my current script name.. Here it is ps -ef | grep $0 | grep -v grep This display just one line with the PID, PPID and other details when i print it in the script. But when I want to count the numbers in my... (11 Replies)
Discussion started by: sathyaonnuix
11 Replies

4. Homework & Coursework Questions

Server Confusion

I don't even know where to start with this one. There is so much out there about different aspects of this. I am starting with a basic Ubuntu 11.04 install. Do I need to configure a DNS? I am a little confused about that. What do I need to do for a domain name? I have followed various tutorials,... (1 Reply)
Discussion started by: polyglot0727
1 Replies

5. Programming

shmget confusion?????

Hi friends, This is a small program built on the concept of shared memory. The producer is a separate program and process, and the consumer is a seperate program and process. Both are executed under the same user account. The producer takes some string from the user and adds that string to the... (1 Reply)
Discussion started by: gabam
1 Replies

6. Shell Programming and Scripting

conditional confusion

Hell Unix.com Community: I am working on a personal project using yad v0.12.4 (zenity fork) and have hit a wall on how to show a progress bar while my function is processing. I have been all over the ABS Guide, googled 21 Linux-specific sites that I revere. I even asked on the yad-common... (4 Replies)
Discussion started by: Habitual
4 Replies

7. Programming

C fork Confusion :-?

Hi, I was trying to learn forking in C in UNIX. Somehow i still haven't been able to get the concept well. I mean, i do understand that fork creates an exact replica of the parent (other than the fact that parent gets the process id of the child and child gets 0 when fork is called). This is the... (2 Replies)
Discussion started by: ralpheno
2 Replies

8. UNIX for Dummies Questions & Answers

crontab confusion

I come across an entry in cron which is in such: 0 * * * * What is the first 0 indicating? 0 minute? meaning a script cron as such will run every minute? :confused: (2 Replies)
Discussion started by: user50210
2 Replies

9. UNIX for Dummies Questions & Answers

unix confusion

:confused: some one please tell me where i can possibly find out what is unix 10.2 and the basic system functions of it is. I really need help! (1 Reply)
Discussion started by: tribb24
1 Replies

Featured Tech Videos