string manipulation


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting string manipulation
# 1  
Old 10-29-2006
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!
# 2  
Old 10-29-2006
Are you looking for something like this:
Code:
str1="A,B,Z"
str2=`echo $str1 | cut -d, -f1`

Use -f2 for letter B and -f3 for letter Z.
# 3  
Old 10-29-2006
Thanks for quick response!

The problem is that str1 may contains any number of letters separated by a comma

I think I need some sort of loop!
# 4  
Old 10-29-2006
can you please be more precise?? like which value do yo have to pick. is it the first one the second one or the last one?
# 5  
Old 10-29-2006
One way to do that:
Code:
str1="A,B,C,D,E,F,G,H,I"
count=`echo $str1 | awk -F, '{print NF}'`
i=2
while ((i <= $count));
do
str${i}=`echo $str1 | cut -d, -f${i}`
(( i = i + 1));
done

Another way, using awk arrays:
Code:
str1="A,B,C,D,E,F,G,H,I,J"
echo $str1 | awk -F, '{
for (i =1; i <= NF; i++)
         a[i]=$i;
}'

You can reference array subscript later on to access values.

Regards,
Tayyab
# 6  
Old 10-29-2006
Thanks Tayyab!

I tried your second suggestion but one more stupid question: array a is in awk, how do I reference to it in Shell.

Regards
# 7  
Old 10-29-2006
Code:
eval `echo $str1 | awk -F, '{
for (i =1; i <= NF; i++)
        printf("a[%d]=%s\n",i,$i);
}'`

Use the above code to access array "a" in shell script.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

String Manipulation

I'm making a little game in Perl, and I am trying to remove the first instance of a character in an arbitrary string. For example, if the string is "cupcakes"and the user enters another string that contains letters from "cupcake" e.g: "sake"the original string will now look like this (below)... (3 Replies)
Discussion started by: whyte_rhyno
3 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

Hi All, Pls help me out on the below, 05 LAMSZ201-ZM-MEMO2-DATE02-5 PIC X(10). 05 LAMSZ201-ZM-MEMO2-AMT02-5 PIC S9(13)V99. 05 LAMSZ201-ZM-MEMO2-TYPE02-6 PIC XXX. 05 LAMSZ201-ZM-MEMO2-DATE02-6 PIC X(10). 05 ... (2 Replies)
Discussion started by: baskivs
2 Replies

5. Shell Programming and Scripting

String Manipulation

Hi, I have a file in the following format 123|shanwer|15DEC2010|bgbh|okok|16JAN3000|okok| I want the following to be in following format 123|shanwer|12\15\2010|bgbh|okok|01\16\3000|okok| SED/PERL/AWK Gurus could you please help me with this? Thanks Shankar (8 Replies)
Discussion started by: Shan2210
8 Replies

6. Shell Programming and Scripting

I need help with string manipulation

First of all I am VERY new to this so bare with me and try and explain everything even if it seems simple. Basically I want to read a line of text from a html file. See if the line of text has a certain string in it. copy an unknown number of characters (the last 4 characters wiil be ".jpg" the... (1 Reply)
Discussion started by: c3lica
1 Replies

7. Shell Programming and Scripting

string manipulation

i have a file that contains a pattern like this: ajay 1234 newyork available kumar 2345 denver singh 2345 newyork ajay 3456 denver kumar 3456 newyork singh 3456 delhi available ajay 4567 miami kumar 4567 miami singh 4567 delhi i want to search for each line... (5 Replies)
Discussion started by: ajay41aj
5 Replies

8. Shell Programming and Scripting

String manipulation

Hi, i am just gettin exposed to UNIX. Could anyone of u help me out with dis problem..? i have a variable 'act' which has the value as follows, echo $act gives -0- -0- -----0---- 2008-06-04 -0- -0- echo "$act" | awk '{print ($act)}' gives, -0- -0- -----0---- 2008-06-04 -0- -0- I... (2 Replies)
Discussion started by: jerrynimrod
2 Replies

9. UNIX for Dummies Questions & Answers

string manipulation

Hi, I have a file with rows of text like so : E100005568374098100000015667 D100005568374032000000112682 H100005228374060800000002430 I need to grab just the last digits(bolded) of each line without the proceeding text/numbers. Thanks (5 Replies)
Discussion started by: james6
5 Replies

10. 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
Login or Register to Ask a Question