04-24-2016
There are at least three ways to do this, but none of them work perfectly (depending on the number of files present and the collective lengths of their names, whether or not any of the filenames contain space or tab characters, and whether or not any of the filenames contain newline characters).
Note also that the ls utility goes to a lot of work to line up output fields while producing minimal line lengths. Converting the ls -l output to use a single tab as a field separator for all fields is likely to produce wider line lengths on display devices, and, depending on the variability of user and group name lengths, unaligned group and filename output fields.
But, before we can go into details on these possibilities, we do need clarification, as RavinderSingh13 asked, about what a "tutoring course" is.
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I want to cut two coloums simulatiously and paste in some other file
for ex:
cut d ' ' -f3 -f4 xxx | paste yyy - > zzz;
from the above i want to cut two fileds 3 and 4 and paste as last coloums of single file (zzz).
how to solve this
regards
rajan (1 Reply)
Discussion started by: rajan_ka1
1 Replies
2. Shell Programming and Scripting
I have a text:
dsj khfksjdh <time> EST 2006
ab cgnr jkkjt <time> EST 2006
gfhdgjghg <time> EST 2006
fkdjh kjhsekjrh kdjhfkh jhdfkhfdkjh kjdf <time> EST 2006
In the above file i need to extract time from every line... which is always the third from the last... Pls help!
Cheers,
Bouren (4 Replies)
Discussion started by: bourne
4 Replies
3. Shell Programming and Scripting
Hello,
I would like to extract one or two fields of a line.
At the moment, I am extracting the first field of a line:
command | cut -f 1 -d '.' > file
The line can have two or three fields delimited with a dot.
if three fields, I want to be able to get the first two
ie if line =... (3 Replies)
Discussion started by: maxvirrozeito
3 Replies
4. Shell Programming and Scripting
I'm working on formatting some attendance data to meet a vendors requirements to upload to their system. With some help on the forums here, I have the data close. But they've since changed what they want.
The vendor wants me to submit three fields to them. Field 1 is the studentid field,... (4 Replies)
Discussion started by: axo959
4 Replies
5. Shell Programming and Scripting
Hi
Can anyone what I am doing wrong while using cut command.
for f in *.log
do
logfilename=$f
Log "Log file Name: $logfilename"
logfile1=`basename $logfilename .log`
flength=${#logfile1}
Log "file length $flength"
from_length=$(($flength - 15))
Log "from... (2 Replies)
Discussion started by: dgmm
2 Replies
6. Shell Programming and Scripting
Hi,
I want to write a code that will cut everything that is under a couple of columns in a text file but so far I am not even close to achieve something like that.
Basically, I want to cut all the information from the columns and transfer the column information to a spread sheet.
I have... (1 Reply)
Discussion started by: pericopericone
1 Replies
7. UNIX for Dummies Questions & Answers
hay
i am trying to get JUST the PID from the ps command.
my command line is:
ps -ef | grep "mintty" | cut -d' ' -f2
but i get an empty line. i assume that the delimiter is not just one space character, but can't figure out what should i do in order to do that.
i know i can use awk or cut... (8 Replies)
Discussion started by: ran ber
8 Replies
8. Shell Programming and Scripting
Hi All,
I'm trying to view data using cut command for a fixed length file using the below command:
cut -c 1-3,4-5 FALCON_PIS_00000000.dat
I want to mention a separator say | (pipe) in between 1-3 and 4-5.
Please let me know how to achieve this.
Thanks in Advance, (3 Replies)
Discussion started by: HemaV
3 Replies
9. Shell Programming and Scripting
I am new to cut and I want to use the field option with a space delimiter on an Apache log file.
For example, if I wanted to find the 200 HTTP code using cut in this manner on the file below
cat access_abc.log | cut -d' ' -f7 | grep "200"
157.55.39.183 - - "GET /content/696-news041305... (4 Replies)
Discussion started by: sharingsunshine
4 Replies
LEARN ABOUT OPENDARWIN
expand
EXPAND(1) BSD General Commands Manual EXPAND(1)
NAME
expand, unexpand -- expand tabs to spaces, and vice versa
SYNOPSIS
expand [-t tab1,tab2,...,tabn] [file ...]
unexpand [-a] [-t tab1,tab2,...,tabn] [file ...]
DESCRIPTION
The expand utility processes the named files or the standard input writing the standard output with tabs changed into blanks. Backspace
characters are preserved into the output and decrement the column count for tab calculations. The expand utility is useful for pre-process-
ing character files (before sorting, looking at specific columns, etc.) that contain tabs.
The unexpand utility puts tabs back into the data from the standard input or the named files and writes the result on the standard output.
The following options are available:
-a (unexpand only) By default, only leading blanks and tabs are reconverted to maximal strings of tabs. If the -a option is given, then
tabs are inserted whenever they would compress the resultant file by replacing two or more characters.
-t tab1,tab2,...,tabn
Set tab stops at column positions tab1, tab2, ..., tabn. If only a single number is given, tab stops are set that number of column
positions apart instead of the default number of 8.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of expand and unexpand as described in environ(7).
DIAGNOSTICS
The expand and unexpand utilities exit 0 on success, and >0 if an error occurs.
STANDARDS
The expand and unexpand utilities conform to IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
The expand command appeared in 3.0BSD.
BSD
April 21, 2002 BSD