Visit Our UNIX and Linux User Community


command/script to extract a substring from a string


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting command/script to extract a substring from a string
# 1  
Old 09-20-2006
command/script to extract a substring from a string

I have a long string "<ID type="Oid">{[ManagedElement(Key=rvpdn-nvl-mayo-17)][PhysicalRoot][Chassis][Slot(SlotNum=10000)][Module][Port(PortNumber=GigabitEthernet0/1)][PhysicalLayer][DataLinkLayer]}</ID>"

I need to extract "GigabitEthernet0/1" from the above string.
How can it be done? Smilie
# 2  
Old 09-20-2006
I can use cut -d')' -f3 | cut -d'=' -f2
Any other elegant way in unix?
# 3  
Old 09-20-2006
Code:
long_string="
port_number=`echo "$long_string" | sed 's/.*PortNumber=\([^)]*\).*/\1/' `


Jean-Pierre.
# 4  
Old 09-20-2006
Using expr...
Code:
port_number=$(expr "$long_string" : ".*PortNumber=\([^)]*\).*")

# 5  
Old 09-21-2006
alternatively in Python:

Code:
#!/usr/bin/python
import re
longstring = '"<ID type="Oid">{[ManagedElement(Key=rvpdn-nvl-mayo-17)][PhysicalRoot][Chassis][Slot(SlotNum=10000)][Module][Port(PortNumber=GigabitEthernet0/1)][PhysicalLayer][DataLinkLayer]}</ID>"'
get = re.findall(".*PortNumber=(.*)\)",longstring)
print get

# 6  
Old 09-21-2006
Thanks to all.

Previous Thread | Next Thread
Test Your Knowledge in Computers #248
Difficulty: Easy
ARPANET was designed to reliably transmit 911 messages, and to inform the host computer when it loses a message.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Question on grep command (extract a string)

Dear all, I have a file a.txt like below: 1_234560_A_G_b37 1 2 1 2 2 2 ... 1_35465767_C_T_b37 2 1 1 2 2 2 ... 2_490638010_A_T_b37 1 2 1 2 2 2 ... 10_4567899_T_G_b37 2 2 1 2 2 2 ... ... what I want to do is extracting rows starting with "10_" like : 10_4567899_T_G_b37 2 2 1 2 2... (1 Reply)
Discussion started by: forevertl
1 Replies

2. Shell Programming and Scripting

Script Shell Extract substring

Hi all, Please, i'd like to extract string just before '.fr'. Here is some lines of my file: g-82.text.text1.fr.worker1 g-xx.yyyyyy.zzzz.fr.worker2 i'd like to extract this text: g-82.text.text1 g-xx.yyyyyy.zzzz Please, which command i have to use in my script shell ? ... (16 Replies)
Discussion started by: chercheur111
16 Replies

3. Shell Programming and Scripting

Command to extract word from a string

Hi All, I have a word and from that word would like to search for certain set of string, is there any command to do so ? EX : Components from the above word, would like to search for strings set and extract the search string and then do if stmt... pon nen ent Com say... (2 Replies)
Discussion started by: Optimus81
2 Replies

4. Shell Programming and Scripting

Help me please: UNIX command to extract substring not squeeze spaces

Hi experts, Please help me!... I have a string " test1 test2 test3 ". There are two spaces before "test1"; There are four spaces between "test1" and "test2"; there are two spaces between "test2 and "test3". I want to extract a substring "2 test3" using positions. Below is my test... (5 Replies)
Discussion started by: sophiez16
5 Replies

5. Shell Programming and Scripting

How to extract a substring from a string

Hi, I have an input string say for example: ABC,DEF,IJK,LMN,...,XYZ The above string is comma delimited. Now I have to extract the last part after the comma i.e. XYZ. :b: (3 Replies)
Discussion started by: bghosh
3 Replies

6. Shell Programming and Scripting

Extract a string up to the first occurence of a substring

Hi, I'm a newbie to shell scripting and have searched the forum but couldn't find what i was looking for. Basically I have a list of filenames like... 123-fileone.txt I want to be able to extract the prefix up to the first '-'. So I'd end up with 123. I have attempted it using a pretty... (2 Replies)
Discussion started by: kirkg
2 Replies

7. Solaris

Extract substring from a string

i have srtring i.e. "NAME,CLASS,AGE" (length of string is not constant) and from this string i've extract each word delimited by "," (comma). INPUT: "NAME,CLASS,AGE" OUTPUT: NAME CLASS AGE how can i do that? i have tried some string manipulation function like... (5 Replies)
Discussion started by: jadoo_c2
5 Replies

8. UNIX for Dummies Questions & Answers

Extract substring of unknown length from string

I have a string: hgLogOutput=" +0000 files: forum/web/hook-test.txt /forum/web/hook-test-2.txt description: test" and I want to extract the file names from it, they will always appear between the files: and the description:. I have worked out that I can do this: "$hgLogOutput" | awk '{... (2 Replies)
Discussion started by: klogger
2 Replies

9. Shell Programming and Scripting

help for shell script of finding shortest substring from given string by user

please give me proper solution for finding a shortest substring from given string if string itself and first char and last char of that substr are also given by user if S="dpoaoqooroo" and FC="o" and LC="o",then shortest substr is "oo" and rest of the string is "dpoaoqroo" i have code but it is... (1 Reply)
Discussion started by: pankajd
1 Replies

10. Shell Programming and Scripting

Using Awk in shell script to extract an index of a substring from a parent string

Hi All, I am new to this shell scripting world. Struck up with a problem, can anyone of you please pull me out of this. Requirement : Need to get the index of a substring from a parent string Eg : index("Sandy","dy") should return 4 or 3. My Approach : I used Awk function index to... (2 Replies)
Discussion started by: sandeepms17
2 Replies

Featured Tech Videos