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Getting the index of a string in a string

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http://www.unix.com – I have a variable Code: $line= Some text with ERR message I want to get the value of the index of ERR and assign to a variable say $index I expect the output Code: echo $index 16 I tried to use match function of awk, but unable to pass a string as input instead of a file Also tried the following code Code: index=awk '{for(i=1;i<=NF;i++) if($1~/^ERR/){print i}'<$line (HowTos)

jiqi2's picture
Submitted by jiqi2 on 12/05/2012

Stories similar to Getting the index of a string in a string

Why does this work:

Code: awk -v s="this is a string" 'index($0, s)' file while the following doesn't?

Code: s="this is a string" awk -v s=$s 'index($0, s)' file How do I search for a string with spaces in it?

---------- Post updated at 01:18 AM ---------- Previous update was at 01:15 AM ----------

I figured it out.

i would like to search for a letter in a string and get its index position. example:

Code: name='john'

pos=$(expr index $name o) the result will be equal to 2 (2nd position)

how do you make this thing not case sensitive? example:

Code: name='john'

pos=$(expr index $name O) the capitalization is the issue.

Moderator's Comments:

awk string with spaces 38 weeks 6 days ago

Why does this work:

Code: awk -v s="this is a string" 'index($0, s)' file while the following doesn't?

Code: s="this is a string" awk -v s=$s 'index($0, s)' file How do I search for a string with spaces in it?

---------- Post updated at 01:18 AM ---------- Previous update was at 01:15 AM ----------

I figured it out.

I cannot correctly write the generic method for this:

private int [] loadIntArray(String key, int [] defaultArray) { int [] array = new int [4]; for( int index=0; index<4 ; index++) { array[index] = sp.getInt(key + index, defaultArray[index]); } return array; }

I wrote this:

private <T[]> loadArray(String key, <T[]> defaultArray) { <T[]> array =

hi i have a requirement to input a string to a shell script and to split the string to multiple fields, the string is copied from a row of three columns (name,age,address) in an excel sheet. the three columns (from excel) are seperated with a tab when pasted in the command prompt, but when the string is assigned to a variable, the tab disappears to a space. code is given below

Code:

echo

awk - index and wildcards 18 weeks 1 day ago

When I search for the string

Code: capId=... using

Code: awk '/capId=.../' file I get successful results. However when I feed the string as a variable, like this:

Code: str="capId=..." awk -v str="$str" 'index($0, str)' file I get no results.

What can I do if I need to generate a string that contains wildcards and feed it to awk?

I am really new to bash scripting, and I can not figure it out how to do this. I have string which is an output of another command. I only need the end of this string to display. The separator string is ". " (dot and space), and I need the string after the last index of ". "

It would be easy in other languages for me, but I do not know how to do this basic operation in bash.

I'm new to gawk. I read the asort function sorts by data element values; when no sort function is specified, in the default order (which I took as numerical sort or lexicographic sort respectively).

wget output file names 44 weeks 4 days ago

Hi,

I have a list of urls in my input.txt file like this

input.txt

Code: http://unix.com/index.html?acc=OSR765454&file=filename1.gz http://unix.com/index.html?acc=OBR765454&file=filename111.gz http://unix.com/index.html?acc=ORS765454&file=filename1111.gz http://unix.com/index.html?acc=OST76454&file=filename11111.gz http://unix.com/index.html?acc=OS5454&file=filename1111