Explained:
head -1 takes the top line
tr -d "\n" gets rid of extra line feeds
tr "\t" "n" converts tabs to line feeds
wc -l counts the number of lines (that line feeds caused)
------------------------------
$x=" hi";
$tabspace=0;
while ($x =~ /\t/g )
{
$tabspace++;
}
print $tabspace;
---------------------------------
1.)when i tried it without "g" ($x = ~/\t/ )... when i run the script it utilizes around 95% cpu and system hangs and i did "End process"... (0 Replies)
I have a list of files with names as "FULL_abcd_xyz_timestamp.txt" and "FULL_xx_abcd_xyz_timestamp.txt". I am writing a script with a 'for loop' to take each file, strip the "FULL" and "timestamp" from the file name and do some actions on the contains of the file. So I need to know the number of... (4 Replies)
Hi,
I need to write a script which will have a text string as a input and the output should find out the number in the text string and add one to it.
Eg:
Input => asfdosainovih1234lnsiohn
Output => 1235
All the numbers in the text will be together and only one time in the line.
... (2 Replies)
Hi,
I have a problem to concatenate the lines based on number of delimiters (if the delimiter count is 9 then concatenate all the fields & remove the new line char bw delimiters and then write the following data into second line) in a file.
my input file content is
Title| ID| Owner|... (4 Replies)
I have a data file (which has five columns) from which im finding column count of all the records and writing into separate file say "colcnt.txt". And I find one (or more) records have less column counts (i.e split records). I need to know which record(s) have that split scenario. Is there any way... (4 Replies)
What to know the way to count the number of delimiters in each record by ignoring the escape delimiters.
Sample Data:
12345678|ABN\|XYZ MED CHEM PTY. LTD.|C||100.00|22|AB"C\|Corp|"XYZ|CDEF"|
I'm using awk -F'|' '{ print NF-1 }' command to find the number of delimiters. this command... (8 Replies)
Hi
I want to use awk to match where field 3 contains a number within string - then print the line and just the number as a new field.
The source file is pipe delimited and looks something like
1|net|ABC Letr1|1530|||
1|net|EXP_1040 ABC|1121|||
1|net|EXP_TG1224|1122|||
1|net|R_North|1123|||... (5 Replies)
I am looking at a log file which just tells me the filename and the line number inside that file that has the Error. What I am interested is knowing the encapsulating function. For example, here are the contents of the log file
Error: foo.file on line wxy
Error: foo.file... (3 Replies)
Discussion started by: kaaliakahn
3 Replies
LEARN ABOUT LINUX
col
COL(1) BSD General Commands Manual COL(1)NAME
col -- filter reverse line feeds from input
SYNOPSIS
col [-bfhpx] [-l num]
DESCRIPTION
The col utility filters out reverse (and half reverse) line feeds so that the output is in the correct order with only forward and half for-
ward 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).
The col utility reads from the standard input and writes to the 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 fol-
lowing line.
-h Do not output multiple spaces instead of tabs (default).
-l num Buffer at least num lines in memory. By default, 128 lines are buffered.
-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.
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.
The col utility 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.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of col as described in environ(7).
EXIT STATUS
The col utility exits 0 on success, and >0 if an error occurs.
SEE ALSO colcrt(1), expand(1), nroff(1), tbl(1)STANDARDS
The col utility conforms to Version 2 of the Single UNIX Specification (``SUSv2'').
HISTORY
A col command appeared in Version 6 AT&T UNIX.
BSD August 4, 2004 BSD