How to replace a string in a file using another file as source?
I have a file with two columns of alpha numeric strings, I need to replace in another file all the appearances of any string in column A with the correspondent string in column B, I tried this but it is not working:
Code:
for i in `awk '{print $1}' test_file`; do for j in `awk '{print $2}' test_file`; do sed 's/$i/$j/g' test_file1 > test_file2; done; done
as a test if I do this:
Code:
for i in `awk '{print $1}' test_file`; do for j in `awk '{print $2}' test_file`; do echo $i:$j; done; done
I got the list of strings correctly, but the replacement doesn't work
Moderator's Comments:
Added code tags ...
Last edited by Peter Roday; 08-29-2017 at 04:01 PM..
i am very new to UNIX
plz help me in this scenario
i have two text files as below
file1.txt
name=Rajakumar.
Discipline=Electronics and communication.
Designation=software Engineer.
file2.txt
name=Kannan.
Discipline=Mechanical.
Designation=CADD Design Engineer.
... (6 Replies)
Hi,
I have a file with the following contents
# Lines that start with a # are comments.
#
# Calling TOAD like this will perform a comparison from command line :
#
# "C:\Program Files\Quest Software\Toad for Oracle 9.6\toad.exe" -c... (2 Replies)
Hi -
I am looking for a replacing a string in a in multiple *.sql files in directory with a new string without using a temporary file
Normally I can use sed command as below
for W in ls `FILE*.sql`
do
sed 's/OLD/NEW/g' $W > TEMPFILE.dat
mv TEMPFILE.dat $W
done
But Here in my... (9 Replies)
Hi Everyone,
I am new to this forum and new to sed/awk programming too !!
I need to find particular string in file1(text file) and replace it with a value from another text file(file2) the file2 has only one line and the value to be replaced with is in the second column.
file 1:
(assert (=... (21 Replies)
Can someone tell me how I can do this?
e.g:
Say file1.txt contains:
today is monday
the 22 of
NOVEMBER
2010
and file2.txt contains:
the
11th
month
of
How do i replace the word NOVEMBER with (5 Replies)
Can someone tell me how I can do this?
e.g:
a=$(echo -e wert trewt ertert ertert ertert erttert
erterte
rterter
tertertert
ert)
How do i replace the STRING with $a?
I try this:
sed -i 's/STRING/'"$a"'/g' filename.ext
but this don' t work (2 Replies)
We have two files
file 1: (usually small, ~100 lines), each line contains a : separated index, value e.g
2: Apple
1: Banana
5: Pear
7: Orange
File 2: (usually large, 10 million lines or more), each line contains a single string value. e.g
xyz1
xyz2
xyz3
xyz4
xyz5
xyz6
xyz7
Now... (2 Replies)
Hello Forum.
I have a file called abc.sed with the following commands;
s/1/one/g
s/2/two/g
...
I also have a second file called abc.dat and would like to substitute all occurrences of "1 with one", "2 with two", etc and create a new file called abc_new.dat
sed -f abc.sed abc.dat >... (10 Replies)
Hi
I have a large txt file on my AIX server and I need to replace some text using two other files. So filename1 has about 500 lines similar to:
txtcode SYStem100
I have the string I want to change in string2 and the new stringname in string3. Does anyone know a way of doing this? I have... (1 Reply)
I have a file comp.pkglist which mention package version and release . In 'version change' and 'release change' line there are two versions 'old' and 'new' Version Change: --> Release Change: -->
cat comp.pkglist
Package list: nss-util-devel-3.28.4-1.el6_9.x86_64
Version Change: 3.28.4 -->... (1 Reply)
Discussion started by: Paras Pandey
1 Replies
LEARN ABOUT MOJAVE
colrm
COLRM(1) BSD General Commands Manual COLRM(1)NAME
colrm -- remove columns from a file
SYNOPSIS
colrm [start [stop]]
DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read
from the standard input. Output is written to the standard output.
If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec-
ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not
zero.
Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).
EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO awk(1), column(1), cut(1), paste(1)HISTORY
The colrm command appeared in 3.0BSD.
BSD August 4, 2004 BSD
08-29-2017
