Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

String manipulation using ksh

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers String manipulation using ksh
# 1  
Old 09-17-2008
String manipulation using ksh
I have a UNIX shell where:
LEVEL=dev
SITE=here
and WHEREIAM=/tmp/$SITE/location/$LEVEL

I want to echo $WHEREIAM in such a way that I get it back with all the environment variables resolved (/tmp/here/location/dev).
This command will be used in a shell script.
# 2  
Old 09-17-2008
what is wrong with:
echo "$WHEREIAM"
?
# 3  
Old 09-17-2008
echo "$WHEREIAM" gives /tmp/$SITE/location/$LEVEL instead of as I would have expected /tmp/here/location/dev
# 4  
Old 09-18-2008
Actually could have something like:
WHEREIAM= `echo $WHEREIAM | command`
where command(using sed, awk, ...) will replace all environment variables by their value within the shell so that in my example i'll have when echo $WHEREIAM after ===>=/tmp/here/location/dev
# 5  
Old 09-18-2008
Place the variable between double quotes or braces:

Code:
LEVEL=dev
SITE=here
WHEREIAM=/tmp/${SITE}/location/${LEVEL}

Regards
# 6  
Old 09-18-2008
Quote:
Originally Posted by zambo
Actually could have something like:
WHEREIAM= `echo $WHEREIAM | command`
where command(using sed, awk, ...) will replace all environment variables by their value within the shell so that in my example i'll have when echo $WHEREIAM after ===>=/tmp/here/location/dev
if you use double quotes it should give expected result.. Smilie
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

ksh String Manipulation - removing variables from within a variable

Hi. I'd like to remove all values in a string variable that also exist in a second variable. What is the appropriate approach to take here? I can use a 'For' loop and check each element and then populate a new string. But is there a cleaner, simpler way? E.g. I have the following 2 variables ... (19 Replies)
Discussion started by: user052009
19 Replies

2. Shell Programming and Scripting

Deleting part of a string : string manipulation

i have something like this... echo "teCertificateId" | awk -F'Id' '{ print $1 }' | awk -F'te' '{ print $2 }' Certifica the awk should remove 'te' only if it is present at the start of the string.. anywhere else it should ignore it. expected output is Certificate (7 Replies)
Discussion started by: vivek d r
7 Replies

3. Shell Programming and Scripting

String manipulation

Hello Could you help with small script: How to split string X1 into 3 string String X1 can have 1 or many strings X1='A1:B1:C1:D1:A2:B2:C2:D2:A3:B3:C3:D3' This is output which I want to have: Z1='A1:B1:C1:D1' Z2='A2:B2:C2:D2' Z3='A3:B3:C3:D3' (5 Replies)
Discussion started by: vikus
5 Replies

4. Shell Programming and Scripting

String manipulation using ksh script

Hi, I need to convert string "(joe.smith" into "joe_smith" i.e. I need to remove the leading opening brace '(' and replace the dot '.' with an under score '_' can anyone suggest a one liner ksh script or unix command for this please (3 Replies)
Discussion started by: sdj
3 Replies

5. Shell Programming and Scripting

Help With String Manipulation

Hi Guru's, I need some help with data manipulation using shell scripting. I know how to replace the whole string but not part of the string. The value after aa= should be replaced with the value in the mail leaving ,OU=111,OU=222,DC=333 as is. Below are the inputs and expected outputs. Input:... (17 Replies)
Discussion started by: Samingla
17 Replies

6. Shell Programming and Scripting

Eval Tricky Manipulation of Arry in KSH - Help

Hi, Could any one share the intelligence to track this problem. I have any array BT_META_36 and it prints properly with contents of array. # print "BT_META_36=${BT_META_36}" # BT_META_36=cab3,cab4:HDS:052,07A cab3,cab4:HDS:052,07A Now I have a BT_META_36 assigned to a variable.... (0 Replies)
Discussion started by: ajilesh
0 Replies

7. Shell Programming and Scripting

string manipulation in ksh

Hi all, I'm trying to extract the name of a script that is being run with a full path. i.e. if the script name is /some/where/path/script_name.ksh I'd like to extract only: script_name i know that it is possible to do so in two phases: echo "${0##*/}" will give me script_name.ksh and... (4 Replies)
Discussion started by: iceman
4 Replies

8. Shell Programming and Scripting

string manipulation

Hello, I have a korn shell string variable str1 = "A,B,Z" I would like to create another korn shell string variable str2 = "letter = 'A' or letter = 'B' or letter = 'Z' " Please help! Thanks in advance an UNIX newbie! (13 Replies)
Discussion started by: hai1973
13 Replies

9. Shell Programming and Scripting

String Manipulation

Hi, Suppose I have the following text in a file. ORA-00942: table or view does not exist ORA-01555: snapshot too old: rollback segment number string with name "string" too small Is there any way I can list all the text that starts only with 'ORA-'? Or there any grep command that can... (7 Replies)
Discussion started by: kakashi_jet
7 Replies

10. Programming

string manipulation in C

Hi all, i have the following string as input : "<iframe src="http://abcdef.com/asd/aaa/awerftya0480000008ave/direct;wi.120;hi.600/01?page=" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" topmargin="0" leftmargin="0" allowtransparency="true" width="120" height="600"> <script... (1 Reply)
Discussion started by: trinath
1 Replies
Login or Register to Ask a Question