05-16-2008
Hi again
Could you explain this command for me ....
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1. Shell Programming and Scripting
Hi
Just wondering whether or not I can remove duplicated lines without sort
For example, I use the command who, which shows users who are logging on. In some cases, it shows duplicated lines of users who are logging on more than one terminal.
Normally, I would do
who | cut -d" " -f1 |... (6 Replies)
Discussion started by: lalelle
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2. UNIX for Dummies Questions & Answers
I have a file which looks like
AA BB CC DD EE FF GG HH KK
AA BB GG HH KK FF CC DD EE
AA BB CC DD EE UU VV XX ZZ
AA BB VV XX ZZ UU CC DD EE
....
I want the script to give me only one line based on duplicate contents:
AA BB CC DD EE FF GG HH KK
AA BB CC DD EE UU VV XX ZZ (7 Replies)
Discussion started by: adsforall
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3. Shell Programming and Scripting
hi all,
i have a file contain multicolumns, this file is sorted by col2 and col3.
i want to remove the duplicated columns if the col2 and col3 are the same in another line.
example
fileA
AA BB CC DD
CC XX CC DD
BB CC ZZ FF
DD FF HH HH
the output is
AA BB CC DD
BB CC ZZ FF... (6 Replies)
Discussion started by: kamel.seg
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4. Shell Programming and Scripting
I can not figure out this one, so I turn to unix.com for help, I have a file, in which there are some lines containing continuously duplicate columns, like the following
adb abc abc asd adfj
123 123 123 345
234 444 444 444 444 444 23
and the output I want is
adb abc asd adfj
123 345... (5 Replies)
Discussion started by: fedora
5 Replies
5. Shell Programming and Scripting
I am trying to figure out how to scan a file like so:
1 ralphs office","555-555-5555","ralph@mail.com","www.ralph.com
2 margies office","555-555-5555","ralph@mail.com","www.ralph.com
3 kims office","555-555-5555","kims@mail.com","www.ralph.com
4 tims... (17 Replies)
Discussion started by: totus
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6. UNIX for Dummies Questions & Answers
Hi Guys..
I have a problem for some reason my database has copied everything 4 times.
My Database looks like this:
>BAC233456
rhjieaheiohjteo
tjtjrj6jkk6k6
j54ju54jh54jh
>ANI124365
afrhtjykulilil
htrjykuk
rtkjryky
ukrykyrk
>BAC233456
rhjieaheiohjteo
tjtjrj6jkk6k6
j54ju54jh54jh... (6 Replies)
Discussion started by: Iifa
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7. UNIX for Dummies Questions & Answers
hi!
could u help in the following? I have the data (long list!) that looks like (three coumns white space separated):
rs3094315 0.0665173 742429
rs12562034 0.0738998 758311
rs3934834 0.396449 995669
rs9442372 0.402693 1008567
rs3737728 0.406271 1011278
rs6687776 0.435429 1020428
rs9651273... (4 Replies)
Discussion started by: kush
4 Replies
8. Shell Programming and Scripting
Hi, if i have a file like this:
Query=1
a
a
b
c
c
c
d
Query=2
b
b
b
c
c
e
.
.
. (7 Replies)
Discussion started by: the_simpsons
7 Replies
9. Shell Programming and Scripting
Hello,
I am trying to eliminate rows where the first field is duplicated, leaving the row where the last field is "NET".
Data file:
345234|22.34|LST
546543|55.33|LST
793929|98.23|LST
793929|64.69|NET
149593|49.22|LST
Desired output:
345234|22.34|LST
546543|55.33|LST... (2 Replies)
Discussion started by: palex
2 Replies
10. Shell Programming and Scripting
Hello Gurus,
I have a multiple pipe separated files which have records going over multiple Lines. End of line separator is \n and records going over multiple lines have <CR> as separator. below is example from one file.
1|ABC DEF|100|10
2|PQ
RS
T|200|20
3| UVWXYZ|300|30
4| GHIJKL|400|40... (7 Replies)
Discussion started by: dJHa
7 Replies
LEARN ABOUT DEBIAN
explain_fcntl_or_die
explain_fcntl_or_die(3) Library Functions Manual explain_fcntl_or_die(3)
NAME
explain_fcntl_or_die - manipulate a file descriptor and report errors
SYNOPSIS
#include <libexplain/fcntl.h>
int explain_fcntl_or_die(int fildes, int command, long arg);
DESCRIPTION
The explain_fcntl_or_die function is used to call the fcntl(2) system call. On failure an explanation will be printed to stderr, obtained
from explain_fcntl(3), and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
int result = explain_fcntl_or_die(fildes, command, arg);
fildes The fildes, exactly as to be passed to the fcntl(2) system call.
command The command, exactly as to be passed to the fcntl(2) system call.
arg The arg, exactly as to be passed to the fcntl(2) system call.
Returns:
This function only returns on success, and it returns whatever was returned by the fcntl(2) call; depending on the command, this
may have no use. On failure, prints an explanation and exits, it does not return.
SEE ALSO
fcntl(2)
manipulate a file descriptor
explain_fcntl(3)
explain fcntl(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
explain_fcntl_or_die(3)