05-03-2011
Hey, it does not seem to be a problem exactly with your code.
One possible fallout can be that your c<space>c is really a c<tab>c, but while on display it looks like one single space. A <tab> moves the character to next tab stop.
This User Gave Thanks to 116@434 For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Guys, I need some help... how can I remove the blank spaces between the lines below? (between the date and the hour fields)
21/05/07 00:05:00 99
21/05/07 00:10:01 99
21/05/07 00:15:00 99
21/05/07 00:20:00 99
21/05/07 00:25:00 99
I want to make the file... (4 Replies)
Discussion started by: dfs
4 Replies
2. Shell Programming and Scripting
Hi,
I have this problem that there are blank spaces in my text file... i want to remove them
line 1
line 2
line 3
I want to remove the space between line 2 and line 3... I tried sed... it work but it prints the whole text file at the command prompt which i dont want....
sde i tried was... (4 Replies)
Discussion started by: bhagya2340
4 Replies
3. Shell Programming and Scripting
Hello All,
I am trying to remove all tabspaces and all blankspaces from my file using sed & awk, but not getting proper code. Please help me out.
My file is like this (<b> means one blank space, <t> means one tab space)-
$ cat file
NARESH<b><b><b>KUMAR<t><t>PRADHAN... (3 Replies)
Discussion started by: NARESH1302
3 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I'm a newbie to shell scripting and I have the following problem:
I need all spaces between two letters or a letter and a number exchanged for an underscore, but all spaces between a letter and other characters need to remain. Searching forums didn't help...
One example for clarity:
... (3 Replies)
Discussion started by: Cpt_Cell
3 Replies
5. Shell Programming and Scripting
I have a file which has blank spaces($) and the blank spaces at the end of the file are not coming up while cutting the files.. please find the following file, desired output..
file1:
001_AHaris$$$$$020$$$$$$$$$
001_ATony$$$$$$030$$$$$$$$$
002_AChris$$$$$090$$$$$$$$$... (5 Replies)
Discussion started by: techmoris
5 Replies
6. Shell Programming and Scripting
hi
i have a file which store some data.the contents of my file is
data1:data2
data3:data4
i have a script which read this file
correct="$(cat /root/sh | cut -d: -f1)"
i used this syntax..please help me which syntax is used to remove blank spaces..then how to read this file.. (1 Reply)
Discussion started by: shubhig15
1 Replies
7. Shell Programming and Scripting
Hi everyone..
I'm trying to eliminate multiple whitespaces from a file..
I must make use of shell script to eliminate whitespaces..
Take a look at the sample file
1 int main()
2 {
3 int a,b;
4 printf("Enter the values of a and b");
5 scanf("%d%d",&a,&b);
6 if(a>b) ... (6 Replies)
Discussion started by: abk07
6 Replies
8. Shell Programming and Scripting
I have a file which contains data such as that shown below. How do i remove all the blcnak spaces, before, during and at the end of each line in one command?
300015, 58.0823212, 230.424728
300016, 58.2276459, 229.141602
300017, 58.7590027, 226.960846
... (9 Replies)
Discussion started by: carlr
9 Replies
9. UNIX for Advanced & Expert Users
Hi Gurus,
Somebody can say me how to delete blank spaces and blank lines in a file unix, please.
Thank you for advanced. (10 Replies)
Discussion started by: systemoper
10 Replies
10. Shell Programming and Scripting
I'm monitoring a WLAN network to keep track of new SSIDs popping up. The SSIDs are stored along with the AP MAC address and a few other parameters in a CSV file. A typical line could look like this:
18:70:9f:e3:80:aa 10:11:15 MyNetwork 2437
Now, the problem is that some networks use SSIDs... (4 Replies)
Discussion started by: Zooma
4 Replies
COL(1) BSD General Commands Manual COL(1)
NAME
col -- filter reverse line feeds from input
SYNOPSIS
col [-bfpx] [-l num]
DESCRIPTION
Col filters out reverse (and half reverse) line feeds so the output is in the correct order with only forward and half forward line feeds,
and replaces white-space characters with tabs where possible. This can be useful in processing the output of nroff(1) and tbl(1).
Col reads from standard input and writes to standard output.
The options are as follows:
-b Do not output any backspaces, printing only the last character written to each column position.
-f Forward half line feeds are permitted (``fine'' mode). Normally characters printed on a half line boundary are printed on the follow-
ing line.
-p Force unknown control sequences to be passed through unchanged. Normally, col will filter out any control sequences from the input
other than those recognized and interpreted by itself, which are listed below.
-x Output multiple spaces instead of tabs.
-lnum Buffer at least num lines in memory. By default, 128 lines are buffered.
The control sequences for carriage motion that col understands and their decimal values are listed in the following table:
ESC-7 reverse line feed (escape then 7)
ESC-8 half reverse line feed (escape then 8)
ESC-9 half forward line feed (escape then 9)
backspace moves back one column (8); ignored in the first column
carriage return (13)
newline forward line feed (10); also does carriage return
shift in shift to normal character set (15)
shift out shift to alternate character set (14)
space moves forward one column (32)
tab moves forward to next tab stop (9)
vertical tab reverse line feed (11)
All unrecognized control characters and escape sequences are discarded.
Col keeps track of the character set as characters are read and makes sure the character set is correct when they are output.
If the input attempts to back up to the last flushed line, col will display a warning message.
SEE ALSO
expand(1), nroff(1), tbl(1)
STANDARDS
The col utility conforms to the Single UNIX Specification, Version 2. The -l option is an extension to the standard.
HISTORY
A col command appeared in Version 6 AT&T UNIX.
BSD
June 17, 1991 BSD