HI all
I have a problem, I need to replace a field in a file, but only in the lines that have some pattern, example:
100099C01101C00000000059394200701CREoperadora_TX
100099C01201C00000000000099786137OPERADORA_TX2
in the example above I need to change the first field from 1 to 2 only if... (3 Replies)
I got a sample file like this.
$ cat test
12|13|100|s
12|13|100|s
100|13|100|s
12|13|100|s
I want to replace all 100 by 2000 only in 3rd field using "awk"
This is replacing all 100's :-(
$ awk -F "|" '{gsub( /100/,"2000");print}' test
12|13|2000|s
12|13|2000|s
2000|13|2000|s... (5 Replies)
I have a file 'test.out' with contents:
1|1|10|10|I|asdf|
2|1|10|10|I|sdfg|
4|1|10|10|I|hgfj|
34|0|10|10|I|sdg|
I want to modify the fifth column with value 'I' to 'A' for only the last line. Below is what I expect to see:
1|1|10|10|I|asdf|
2|1|10|10|I|sdfg|
... (3 Replies)
Hello All,
I have a file with contents like
apple|ball|charlie|David|
England|France|Germany|
Ireland|Japan|King|London|
Man|Nancy|Orange|
here the column delimiter is |
so if any of the lines/rows in the file has 3 only records (last field is empty), i want to place a | at the end of... (4 Replies)
Something like vlookup in excel, column 2 in file 2 is blank and should be replaced by column 2 in file 1 based on comparing column 1 in both files.
file1
Code:
1234~abc~b~c~d~e~f~g~h~09/10/09
5678~def~b~c~d~e~f~g~h~12/06/10
8910~hij~b~c~d~e~f~g~h~03/28/13... (1 Reply)
Find a blank field
Hi
I have set of fields that have some blank values, how to find that and get its line noumbers in output file.
Ex:
Col1 col2 col3
11 ss 103
12 104
13 105
14 se 106 (2 Replies)
hi,
i having a file with | seperated in which i need to search char in 3rd column and replace with null. i need to replace only the coulmn where character occurs in 3rd field
for eg:
file1.txt
xx|yy|xx|12
output file:
xx|yy||12 (5 Replies)
Hi All,
i have a file like
col1 col2 col3
13 24 NA
12 13 14
11 12 13
14 22 NA
18 26 NA
in this file if i found "NA" other values in the line are also replace by NA
Could you help me! (7 Replies)
hai guys,
pick the 1st field and calculate max length.
if suppose max length is 2,
then compare the all records if <2 then add zero's prefix of the record.
for ex:
s.no,sname
1,djud
37,jtuhe
in this max length of the 1st field is 2 right
the output wil be
s.no,sname
01,djud... (6 Replies)
Discussion started by: Suneelbabu.etl
6 Replies
LEARN ABOUT CENTOS
join
JOIN(1) User Commands JOIN(1)NAME
join - join lines of two files on a common field
SYNOPSIS
join [OPTION]... FILE1 FILE2
DESCRIPTION
For each pair of input lines with identical join fields, write a line to standard output. The default join field is the first, delimited
by whitespace. When FILE1 or FILE2 (not both) is -, read standard input.
-a FILENUM
also print unpairable lines from file FILENUM, where FILENUM is 1 or 2, corresponding to FILE1 or FILE2
-e EMPTY
replace missing input fields with EMPTY
-i, --ignore-case
ignore differences in case when comparing fields
-j FIELD
equivalent to '-1 FIELD -2 FIELD'
-o FORMAT
obey FORMAT while constructing output line
-t CHAR
use CHAR as input and output field separator
-v FILENUM
like -a FILENUM, but suppress joined output lines
-1 FIELD
join on this FIELD of file 1
-2 FIELD
join on this FIELD of file 2
--check-order
check that the input is correctly sorted, even if all input lines are pairable
--nocheck-order
do not check that the input is correctly sorted
--header
treat the first line in each file as field headers, print them without trying to pair them
-z, --zero-terminated
end lines with 0 byte, not newline
--help display this help and exit
--version
output version information and exit
Unless -t CHAR is given, leading blanks separate fields and are ignored, else fields are separated by CHAR. Any FIELD is a field number
counted from 1. FORMAT is one or more comma or blank separated specifications, each being 'FILENUM.FIELD' or '0'. Default FORMAT outputs
the join field, the remaining fields from FILE1, the remaining fields from FILE2, all separated by CHAR. If FORMAT is the keyword 'auto',
then the first line of each file determines the number of fields output for each line.
Important: FILE1 and FILE2 must be sorted on the join fields. E.g., use "sort -k 1b,1" if 'join' has no options, or use "join -t ''" if
'sort' has no options. Note, comparisons honor the rules specified by 'LC_COLLATE'. If the input is not sorted and some lines cannot be
joined, a warning message will be given.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report join translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by Mike Haertel.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO comm(1), uniq(1)
The full documentation for join is maintained as a Texinfo manual. If the info and join programs are properly installed at your site, the
command
info coreutils 'join invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 JOIN(1)