Sponsored Content
Top Forums UNIX for Advanced & Expert Users Should I say "field 8" or "column 8" in this case? Post 302784611 by hanson44 on Friday 22nd of March 2013 02:55:06 PM
Old 03-22-2013
Yes, I think the sort syntax reinforces what I was trying to say. "sort -t, -k 8 fields.txt" sorts "field 8". The sort man page refers to "field separator" and "field number" and --field-separator. "column" is not even mentioned on the sort man page.

For the position within a field, both sort and cut use "character" instead of "column". In other words, cut says --characters where I would have said --columns. To me "characters" is confusing, as could be interpreted to be "--characters=ABC" as if looking for those "characters". The man pages says "select only these characters". Why did they choose --characters instead of --columns for the option name?

Of course, nobody is going to change the option name at this point. I suppose they could at least improve the cut man page, to say "select only these character positions".
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Hi Friends, Can any of you explain me about the below line of code? mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'` Im not able to understand, what exactly it is doing :confused: Any help would be useful for me. Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies

2. UNIX for Dummies Questions & Answers

Explanation of "total" field in "ls -l" command output

When I do a listing in one particular directory (ls -al) I get: total 43456 drwxrwxrwx 2 root root 4096 drwxrwxrwx 3 root root 4096 -rwxrwxr-x 1 nobody nobody 3701594 -rwxrwxr-x 1 nobody nobody 3108510 -rwxrwxr-x 1 nobody nobody 3070580 -rwxrwxr-x 1 nobody nobody 3099733 -rwxrwxr-x 1... (1 Reply)
Discussion started by: proactiveaditya
1 Replies

3. Shell Programming and Scripting

"Join" or "Merge" more than 2 files into single output based on common key (column)

Hi All, I have working (Perl) code to combine 2 input files into a single output file using the join function that works to a point, but has the following limitations: 1. I am restrained to 2 input files only. 2. Only the "matched" fields are written out to the "matched" output file and... (1 Reply)
Discussion started by: Katabatic
1 Replies

4. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

5. Shell Programming and Scripting

Substituting comma "," for dot "." in a specific column when comma"," is a delimiter

Hi, I'm dealing with an issue and losing a lot of hours figuring out how i would solve this. I have an input file which looks like this: ('BLABLA +200-GRS','Serviço ','TarifaçãoServiço','wap.bla.us.0000000121',2985,0,55,' de conversão em escada','Dia','Domingos') ('BLABLA +200-GRR','Serviço... (6 Replies)
Discussion started by: poliver
6 Replies

6. Shell Programming and Scripting

Awk,sed : change every 2nd field ":" to "|"

Hi Experts, I have a string with colon delimited, want 2nd colon to be changed to a pipe. data: 101:8:43:4:72:14:41:69:85:3:137:4:3:0:4:0:9:3:0:3:12:3: I am trying with sed, but can change only 1 occurance: echo "101:8:43:4:72:14:41:69:85:3:137:4:3:0:4:0:9:3:0:3:12:3:" | sed 's/:/|/2'... (5 Replies)
Discussion started by: rveri
5 Replies

7. UNIX for Dummies Questions & Answers

Using "mailx" command to read "to" and "cc" email addreses from input file

How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address and column 3 contains “cc” e-mail address to include with same email. Sample input file, email.txt Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies

8. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies

9. AIX

Apache 2.4 directory cannot display "Last modified" "Size" "Description"

Hi 2 all, i have had AIX 7.2 :/# /usr/IBMAHS/bin/apachectl -v Server version: Apache/2.4.12 (Unix) Server built: May 25 2015 04:58:27 :/#:/# /usr/IBMAHS/bin/apachectl -M Loaded Modules: core_module (static) so_module (static) http_module (static) mpm_worker_module (static) ... (3 Replies)
Discussion started by: penchev
3 Replies
CUT(1)							    BSD General Commands Manual 						    CUT(1)

NAME
cut -- cut out selected portions of each line of a file SYNOPSIS
cut -b list [-n] [file ...] cut -c list [file ...] cut -f list [-d delim] [-s] [file ...] DESCRIPTION
The cut utility cuts out selected portions of each line (as specified by list) from each file and writes them to the standard output. If no file arguments are specified, or a file argument is a single dash ('-'), cut reads from the standard input. The items specified by list can be in terms of column position or in terms of fields delimited by a special character. Column numbering starts from 1. The list option argument is a comma or whitespace separated set of numbers and/or number ranges. Number ranges consist of a number, a dash ('-'), and a second number and select the fields or columns from the first number to the second, inclusive. Numbers or number ranges may be preceded by a dash, which selects all fields or columns from 1 to the last number. Numbers or number ranges may be followed by a dash, which selects all fields or columns from the last number to the end of the line. Numbers and number ranges may be repeated, overlapping, and in any order. If a field or column is specified multiple times, it will appear only once in the output. It is not an error to select fields or columns not present in the input line. The options are as follows: -b list The list specifies byte positions. -c list The list specifies character positions. -d delim Use delim as the field delimiter character instead of the tab character. -f list The list specifies fields, separated in the input by the field delimiter character (see the -d option.) Output fields are separated by a single occurrence of the field delimiter character. -n Do not split multi-byte characters. Characters will only be output if at least one byte is selected, and, after a prefix of zero or more unselected bytes, the rest of the bytes that form the character are selected. -s Suppress lines with no field delimiter characters. Unless specified, lines with no delimiters are passed through unmodified. ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of cut as described in environ(7). EXIT STATUS
The cut utility exits 0 on success, and >0 if an error occurs. EXAMPLES
Extract users' login names and shells from the system passwd(5) file as ``name:shell'' pairs: cut -d : -f 1,7 /etc/passwd Show the names and login times of the currently logged in users: who | cut -c 1-16,26-38 SEE ALSO
colrm(1), paste(1) STANDARDS
The cut utility conforms to IEEE Std 1003.2-1992 (``POSIX.2''). HISTORY
A cut command appeared in AT&T System III UNIX. BSD
December 21, 2006 BSD
All times are GMT -4. The time now is 08:10 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy