How to search and replace string from nth column from a file?
I wanted to search for a string and replace it with other string from nth column of a file which is comma seperated which I am able to do with below
# For Comma seperated file without quotes
# For Comma seperated file with quotes
But I wanted to make it in one command so that it works for both type of file. I know I can do with sed command sed -i "s/$PPK/$NPK/" $FileName but it replaces the value in other columns as well so can anyone suggest what can be done ?
Here ColumnNo is the nth column from which I wanted to replace PPK to NPK.
Please find other details
Last edited by Amit Joshi; 11-10-2015 at 12:59 AM..
Reason: Added more details
I have file with multiple columns. Column values for a record may be same.
Now i have to replace a column value(this can be same for the other columns) with new value.
File.txt
A,B,C,D,A,B,C,D,A,B,C,D
A,B,C,D,A,B,C,D,A,B,C,D
A,B,C,D,A,B,C,D,A,B,C,D
A,B,C,D,A,B,C,D,A,B,C,D... (1 Reply)
Hi
I am looking for a particular string in a file.If the string exists, then I want to replace another string with some other text.Once replaced, search for the same text after that character position in the file. :wall:
E.g: Actual File content:
Hello
Name: Nitin Raj
Welcome to Unix... (4 Replies)
Hi,
I need some unix command to replace the following thing.
cat test.dat
1234|test|8/19/2009|8/20/2009|test
1234|test|8/9/2009|8/21/2009|test
1234|test|8/1/2009|8/2/2009|test
after processing
1234|test|08/19/2009|08/20/2009|test
1234|test|08/09/2009|08/21/2009|test... (6 Replies)
I need to be able to search for a string in the first column and if that string exists than replace the nth column with "-9.99".
AW12000012012 2.38 1.51 3.01 1.66 0.90 0.91 1.22 0.82 0.57 1.67 2.31 3.63 0.00
AW12000012013 1.52 0.90 1.20 1.34 1.21 0.67 ... (14 Replies)
how to search and replace string in column in file with command sed or other
search "INC0000003.in" and replace column 4 = "W"
$ cat file.txt
INC0000001.in|20150120|Y|N|N
INC0000002.in|20150120|Y|N|N
INC0000003.in|20150120|Y|N|N
INC0000004.in|20150120|Y|N|Noutput... (4 Replies)
Hi Everyone,
I have a requirement in ksh where i have a set of files in a directory. I need to search each and every file if a particular string is present in the file, delete that line and replace that line with another string expression in the same file.
I am very new to unix. Kindly help... (10 Replies)
I am passing a variable and replace nth value with the variable.
I tried using many options in awk command but unable to ignore the special characters in the output and also unable to pass the actual value.
Input : "1","2","3"
Output : "1","1000","3"
TempVal=`echo 1000`
Cat... (2 Replies)
Hi,
I have a text file which looks like this
a.txt
A,12,Apple,Red
B,33,Banana,Yellow
C,66,Sky,Blue
I need to search for a particular field(s) in particular column(s) and for that matching line need to replace the nth column.
Sample scenario 1:
Search for 66 in second field and Sky in... (5 Replies)
Hello All,
I am writing a shell script with following requirement:
1. I have one input file as below
CHE01,A,MSC,INO
CHE02,B,NST,INC
CHE03,C,STM,INP
2. In shell script I have predefined array as below:
Array1={A, B, C}
Array2= {U09, C04, A054} (6 Replies)
I have the below string which i need to compare with a file and replace this string in the file which matches closely. Can anyone help me on this.
string(Scenario 1)- user::r--,user::ourfrd:r--
String(Scenario 2)- user::r--
File
****
# file: /local/Desktop/myfile
# owner: me
# group:... (6 Replies)
Discussion started by: sarathy_a35
6 Replies
LEARN ABOUT PHP
str_ireplace
STR_IREPLACE(3) 1 STR_IREPLACE(3)str_ireplace - Case-insensitive version ofstr_replace(3).
SYNOPSIS
mixed str_ireplace (mixed $search, mixed $replace, mixed $subject, [int &$count])
DESCRIPTION
This function returns a string or an array with all occurrences of $search in $subject (ignoring case) replaced with the given $replace
value. If you don't need fancy replacing rules, you should generally use this function instead of preg_replace(3) with the i modifier.
PARAMETERS
If $search and $replace are arrays, then str_ireplace(3) takes a value from each array and uses them to search and replace on $subject. If
$replace has fewer values than $search, then an empty string is used for the rest of replacement values. If $search is an array and
$replace is a string, then this replacement string is used for every value of $search. The converse would not make sense, though.
If $search or $replace are arrays, their elements are processed first to last.
o $search
- The value being searched for, otherwise known as the needle. An array may be used to designate multiple needles.
o $replace
- The replacement value that replaces found $search values. An array may be used to designate multiple replacements.
o $subject
- The string or array being searched and replaced on, otherwise known as the haystack. If $subject is an array, then the search
and replace is performed with every entry of $subject, and the return value is an array as well.
o $count
- If passed, this will be set to the number of replacements performed.
RETURN VALUES
Returns a string or an array of replacements.
EXAMPLES
Example #1
str_ireplace(3) example
<?php
$bodytag = str_ireplace("%body%", "black", "<body text=%BODY%>");
?>
NOTES
Note
This function is binary-safe.
Caution
Replacement order gotcha
Because str_ireplace(3) replaces left to right, it might replace a previously inserted value when doing multiple replacements.
Example #2 in the str_replace(3) documentation demonstrates how this may affect you in practice.
SEE ALSO str_replace(3), preg_replace(3), strtr(3).
PHP Documentation Group STR_IREPLACE(3)