To make sure you replace nothing but a space, do it like
. Scrutinizer's proposal will replace ANY character.
The above code will change the 22nd <space> character on a line; not a space that is the 22nd character on a line. If the requirement is to change the 22nd character on a line to an <A> if and only if that character was a <space>, try something more like (assuming you have a POSIX-conforming version of sed:
This User Gave Thanks to Don Cragun For This Post:
Hi I have two questions.
1. how to convert "EverythingIsFine" to "Everything Is Fine" in a txt file.
2. how to convert everything to upper case letter and reverse, I hope there is a general purpose script for this. (1 Reply)
I have a space delimited text file. I want to extract rows where the third column has 0 as a value and write those rows into a new space delimited text file. How do I go about doing that? Thanks! (2 Replies)
I have 2 files,
file01= 7 columns, row unknown (but few)
file02= 7 columns, row unknown (but many)
now I want to create an output with the first field that is shared in both of them and then subtract the results from the rest of the fields and print there
e.g.
file 01
James|0|50|25|10|50|30... (1 Reply)
How to change the uploaded weekly file data to the following format?
New Well_Id,Old Well_Id,District,Thana,Date,Data,R.L,WellType,Lati.,Longi.
BAG001,PT006,BARGUNA,AMTALI,1/2/1978,1.81,2.29,Piezometer,220825,901430
BAG001,PT006,BARGUNA,AMTALI,1/9/1978,1.87,2.29,Piezometer,220825,901430... (3 Replies)
Hi all,
I have one file with a sequence and the other file which says the position and the letter to be changed. I have to match two files and replace content. Example is shown which will describe what I want to do. For example, file 1 has many sequences and few are shown below
sequence file:... (6 Replies)
Hi - I have a file "file1" of below format. Its a comma seperated file. Note that each string is enclosed in double quotes.
"abc","-0.15","10,000.00","IJK"
"xyz","1,000.01","1,000,000.50","OPR"
I want the result as:
"abc","-0.15","10000.00","IJK"
"xyz","1,000.01","1000000.50","OPR"
I... (8 Replies)
I have a csv file and i want to convert its rows into columns
sample file like this
Row1,1,2,3,......,n
row2,4,5,6,.......,n
.
.
.
.
rown,7,8,9,........,n
i want it like this
row1,row2,....,rown
1,4,.............,7 (4 Replies)
Good afternoon all,
I want to ask how to change some letter in my file with other letter in spesific line
eg.
data.txt
1
1
1
0
0
0
0
for example i want to change the 4th line with character 1.
How could I do it by SED or AWK.
I have tried to run this code but actually did not... (3 Replies)
Hi,
I need to replace, as the title says, the first letter of each line (when it's not a number) by the same letter, but capital.
For instance :
hello
Who
123pass
Would become :
Hello
Who
123pass
Is there a way with sed to do that ? Or other unix command ?
Thank you :) (7 Replies)
Discussion started by: ganon551
7 Replies
LEARN ABOUT NETBSD
column
COLUMN(1) BSD General Commands Manual COLUMN(1)NAME
column -- columnate lists
SYNOPSIS
column [-tx] [-c columns] [-s sep] [file ...]
DESCRIPTION
The column utility formats its input into multiple columns. Rows are filled before columns. Input is taken from file operands, or, by
default, from the standard input. Empty lines are ignored.
The options are as follows:
-c Output is formatted for a display columns wide.
-s Specify a set of characters to be used to delimit columns for the -t option.
-t Determine the number of columns the input contains and create a table. Columns are delimited with whitespace, by default, or with
the characters supplied using the -s option. Useful for pretty-printing displays.
-x Fill columns before filling rows.
column exits 0 on success, >0 if an error occurred.
ENVIRONMENT
COLUMNS The environment variable COLUMNS is used to determine the size of the screen if no other information is available.
EXAMPLES
(echo "PERM LINKS OWNER GROUP SIZE MONTH DAY HH:MM/YEAR NAME";
ls -l | sed 1d) | column -t
SEE ALSO colrm(1), ls(1), paste(1), sort(1)HISTORY
The column command appeared in 4.3BSD-Reno.
BSD March 9, 2008 BSD