06-24-2015
Is this a homework assignment?
What have you tried?
Are you just trying to keep pipe symbols in the three character sequence "|" or are you trying to keep any pipe symbol between paired double quotes?
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1. UNIX for Advanced & Expert Users
I want to remove the comma which is present within the double quoted string. All other commas which is present outside double quotes should be present.
Input : a,b,"cc,dd,ee",f,ii,"jj,kk",mmm
output : a,b,"ccddee",f,ii,"jjkk",mmm (3 Replies)
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2. Shell Programming and Scripting
hi guys i have 6000 rows column
the text in the column has the symbol vertical bar |.
i tried some of the commands to remove it but none of the commands are reconzng this symbol. would u plz help to remove this symbol from the text with any kind of unix command
u r help would be appreciated
... (9 Replies)
Discussion started by: bogu0001
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3. Shell Programming and Scripting
Hi,
I have a requirement to replace the comma's inside the double quotes. The comma's inside the double quotes will get changed dynamically.
Input Record:
"Washington, DC,Prabhu,aju",New York
Output Record:
"Washington| DC|Prabhu|aju",New York
I tried with the below command but it... (3 Replies)
Discussion started by: prabhutkl
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4. Shell Programming and Scripting
I have a flat file sample like this -
"COURSE"|"ddddd " " dddd"|"sssddd
sdsdsdsdx" dddddddd ffffff
"aaaaa" dddddddd ffffff
sdsdsd"|"xxxxxxx"|
"COURSE"|"ffff " " bbbb"|"lllll"|
The delimiter is pipe character (|) and the text are enclosed in double quotes... (5 Replies)
Discussion started by: vishalzone
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5. Shell Programming and Scripting
How to remove characters enclosed in single quotes?
My data is something like this
(03/22/2011 08:17:26.650) : ( -> '1' -> '1-1-3' -> '6' -> '1' -> 'SALMOR58BB4' aaaaa bbbbbb ccccc ((dddd))
I want the output to be
(03/22/2011 08:17:26.650) : ( -> -> -> -> -> aaaaa... (2 Replies)
Discussion started by: rdhanek
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6. Shell Programming and Scripting
I have a csv data file :
A,B,C,D,"A,B",E,"GG,H"
E,F,G,H,I,J,"S,P"
I need to replace all "," with "|" except the ones between double quotes i.e
A|B|C|D|"A,B"|E|"GG,H"
E|F|G|H|I|J|"S,P"
CAn someone assist? (8 Replies)
Discussion started by: Shivdatta
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7. Shell Programming and Scripting
I have a file that looks like this:
102| #2 X 1/4-INCH| 30188| EA| FTW| A| NOT SERIAL TRACKING| NOT LOT TRACKING| TRUE| #2 X 1/4-INCH
102| #2 X 1/4-INCH| 30188| EA| VPS| A| NOT SERIAL TRACKING| NOT LOT TRACKING| TRUE| #2 X 1/4-INCH
102| #6 X 1/2"| ... (2 Replies)
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8. Shell Programming and Scripting
Hi,
I am little new to forum and new on unix side. I have a small issue below:
I am reading a file that has 5 columns something like below.
col1,col2,col3,col4,col5
Some records are having double quoted values something like below:
"value1","value2","value3","value4","value5"
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Discussion started by: Saanvi1
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9. Shell Programming and Scripting
Okay, I would like to delete all the commas in a .CSV file (TEST.CSV) or at least substitute them with empty space, that are enclosed in double quote.
Please see the sample file as below:
column 1,column 2,column 3,column 4,column 5,column 6,column 7,column 8,column 9,column 10... (8 Replies)
Discussion started by: dhruuv369
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10. Shell Programming and Scripting
I have file with are delimited by pipe(|) symbol, I wanted those to be removed except the ones which are enclosed in double quotes.
If your quote file is:
|Life is |Beautiful"|"Indeed life |is beautiful too|"|"But unix is fun| is not"|"
It should return:
Life is Beautiful"|"Indeed life is... (1 Reply)
Discussion started by: Sathyapts
1 Replies
LEARN ABOUT OPENDARWIN
pipe
PIPE(2) BSD System Calls Manual PIPE(2)
NAME
pipe -- create descriptor pair for interprocess communication
SYNOPSIS
#include <unistd.h>
int
pipe(int *fildes);
DESCRIPTION
The pipe() function creates a pipe, which is an object allowing unidirectional data flow, and allocates a pair of file descriptors. The
first descriptor connects to the read end of the pipe, and the second connects to the write end, so that data written to fildes[1] appears on
(i.e., can be read from) fildes[0]. This allows the output of one program to be sent to another program: the source's standard output is set
up to be the write end of the pipe, and the sink's standard input is set up to be the read end of the pipe. The pipe itself persists until
all its associated descriptors are closed.
A pipe whose read or write end has been closed is considered widowed. Writing on such a pipe causes the writing process to receive a SIGPIPE
signal. Widowing a pipe is the only way to deliver end-of-file to a reader: after the reader consumes any buffered data, reading a widowed
pipe returns a zero count.
RETURN VALUES
On successful creation of the pipe, zero is returned. Otherwise, a value of -1 is returned and the variable errno set to indicate the error.
ERRORS
The pipe() call will fail if:
[EMFILE] Too many descriptors are active.
[ENFILE] The system file table is full.
[EFAULT] The fildes buffer is in an invalid area of the process's address space.
SEE ALSO
sh(1), read(2), write(2), fork(2), socketpair(2)
HISTORY
A pipe() function call appeared in Version 6 AT&T UNIX.
4th Berkeley Distribution June 4, 1993 4th Berkeley Distribution