Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

search in text for string

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting search in text for string
# 1  
Old 10-24-2010
search in text for string
search in text for string

I assigned text to variable
for example :
cafe tea coca > drinks
and i want to check is $i is in "drink" or not


thanks
# 2  
Old 10-24-2010
What shell are you using (e.g. bash, ksh, csh, zsh)?

Can you confirm if "drink" is a file or a another shell text variable.
# 3  
Old 10-24-2010
my shell is bash



---------- Post updated at 05:34 PM ---------- Previous update was at 05:31 PM ----------




and "drink" is another shell text variable
I assigned via ">"
cafe tea coca > drink
# 4  
Old 10-24-2010
you could use bash replace something like this:

Code:
drink="cafe tea coca"
[ "${drink}" = "${drink/tea/}" ] || echo "Drink contains tea"

Above will work for ksh93 or bash, Basically we are saying if $drink equals $(replace "tea" with nothing in drink) is false echo "

or use bash in-built compare

Code:
[[ "$drink" =~ "tea" ]] && echo "Drink contains tea"

Last edited by Chubler_XL; 10-24-2010 at 07:58 PM.. Reason: explain what is happening
This User Gave Thanks to Chubler_XL For This Post:
testman84
# 5  
Old 10-24-2010
Code:
#!/bin/bash

drink="cafe tea cocoa"
echo $drink | grep -q $1

if [[ $? == 0 ]]; then
    echo "Match is Found"
fi

This User Gave Thanks to soleil4716 For This Post:
testman84
# 6  
Old 10-24-2010
bash code:
  1. #!/bin/bash
  2. i=tea
  3. drinks="cafe tea cocoa"
  4. if [[ $drinks = *$i* ]]; then 
  5.   echo yup
  6. fi

shell code:
  1. i=tea
  2. drinks="cafe tea cocoa"
  3. case $drinks in 
  4.   *$i*) echo yup
  5. esac
* No external programs died during the making of this code
Last edited by Scrutinizer; 10-24-2010 at 08:45 PM..
This User Gave Thanks to Scrutinizer For This Post:
testman84
# 7  
Old 10-24-2010
Not the most elegant one but still working...

Code:
( grep $i <(echo "$drink") >/dev/null 2>&1 ) && echo 'yup !'

This User Gave Thanks to ctsgnb For This Post:
testman84
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Search a string and display its location on the entire string and make a text file

I want to search a small string in a large string and find the locations of the string. For this I used grep "string" -ob <file name where the large string is stored>. Now this gives me the locations of that string. Now how do I store these locations in a text file. Please use CODE tags as... (7 Replies)
Discussion started by: ANKIT ROY
7 Replies

2. Shell Programming and Scripting

Read in search strings from text file, search for string in second text file and output to CSV

Hi guys, I have a text file named file1.txt that is formatted like this: 001 , ID , 20000 002 , Name , Brandon 003 , Phone_Number , 616-234-1999 004 , SSNumber , 234-23-234 005 , Model , Toyota 007 , Engine ,V8 008 , GPS , OFF and I have file2.txt formatted like this: ... (2 Replies)
Discussion started by: An0mander
2 Replies

3. UNIX for Dummies Questions & Answers

Search String, Out matched text and input text for no match.

I need to search a string for some specific text which is no big deal using grep. My problem is when the search fails to find the text. I need to add text like "na" when my search does not match. I have tried this command but it does not work when I put the command in a loop in a bash script: ... (12 Replies)
Discussion started by: jojojmac5
12 Replies

4. Shell Programming and Scripting

To Search for a string and to extract the string from the text

Hi Team I have an huge xml where i need to search for a ceratin numbers. For example 2014-05-06 15:15:41,498 INFO WebContainer : 10 CommonServicesLogs - CleansingTriggerService.invokeCleansingService Entered PUBSUB NOTIFY MESSAGE () - <?xml version="1.0" encoding="UTF-8"... (5 Replies)
Discussion started by: Kannannair
5 Replies

5. Shell Programming and Scripting

Search a string in a text file and add another string at the end of line

Dear All I am having a text file which is having more than 200 lines. EX: 001010122 12000 BIB 12000 11200 1200003 001010122 2000 AND 12000 11200 1200003 001010122 12000 KVB 12000 11200 1200003 In the above file i want to search for string KVB... (5 Replies)
Discussion started by: suryanarayana
5 Replies

6. Shell Programming and Scripting

Search a string in a text file and add another string at the particular position of a line

I am having a text file which is having more than 200 lines. EX: 001010122 12000 BIB 12000 11200 1200003 001010122 2000 AND 12000 11200 1200003 001010122 12000 KVB 12000 11200 1200003 In the above file i want to search for string KVB and add/replace... (1 Reply)
Discussion started by: suryanarayana
1 Replies

7. Shell Programming and Scripting

Search a string and append text after the string

Hi, I have a file like this... <o t="Batch" id="8410" p="/" g="32"> <a n="name"> <v s="DBBA1MM"/> </a> <a n="owner"> <v r="/Administrator"/> </a> <a n="rights"> <v s="95"/> </a> <a n="debugLevel"> <v s="3"/> </a> <a n="avsStoreLoc"> <v... (8 Replies)
Discussion started by: kesu2k
8 Replies

8. AIX

search text string

hi, i know this trick: find / -name '*' -exec grep 'string to search' {} \; but it won't show the path/file where it came from. how can i make the path/file to show up. thanks in advance, itik (2 Replies)
Discussion started by: itik
2 Replies

9. Shell Programming and Scripting

Perl: Search for string on line then search and replace text

Hi All, I have a file that I need to be able to find a pattern match on a line, search that line for a text pattern, and replace that text. An example of 4 lines in my file is: 1. MatchText_randomNumberOfText moreData ReplaceMe moreData 2. MatchText_randomNumberOfText moreData moreData... (4 Replies)
Discussion started by: Crypto
4 Replies

10. Shell Programming and Scripting

appending string to text file based on search string

Hi, I need to append string "Hi" to the beginning of the lines containing some specific string. How can I achieve that? Please help. Malay (1 Reply)
Discussion started by: malaymaru
1 Replies
Login or Register to Ask a Question