I have a function
awkvarrep() {
awk -F'|' '$1~/$1/{printf "%-10s %-30s %-15s %-30s %-15s\n", $2,$3,$4,$5,$6}' testfile
}
I'm calling it by this
VARREP=XYZ
awkvarrep $VARREP
since i'm passing $VARREP to the awkvarrep() function I want to use this with $1 but it dosen't seem to be... (5 Replies)
I have an xml file with following tags
<NewTag>value123</xyz>
<NewTag>value321</abcd>
I have to replace the values in between the tags with some value ( VAL1/VAL2)
but the thing the ending tag can be any thing, for this i need a awk command
currently i am using this but it... (5 Replies)
Hey all, Im trying to write a script on windows, which Im not too familiar with. Im generally a bash scripting guy but am using perl for this case.
My question is...
I have this exact output:
2 Dir(s) 6,380,429,312 bytes free
and I just need to get the number out... (4 Replies)
Hi I'm a newbie in unix and I'm having trouble in creating a script. I want to search for a pattern '_good' and insert new lines that contains '_bad', '_med', '_fail' while also ensure that the line contains _good is removed
here some of the data
UPDATE SCHOOL SET GRADE =... (1 Reply)
Hi all,
I need help in replacing awk with sed for the below.
1 ) cat list | awk -F" |," '/MATH/ {sub(/]*/,"",$3); print $3}'
Eg: file : list
Sno Subno Name
1 SUB1 ENG
2 SUB2 MATH
2)
Eg:result
Total No of Students: 2
Sno ID Sub
------------------
1 ... (3 Replies)
hi
i am using awk for first time so i am having issue
is it the correct way of using
Y here is variable which i fetch using grep from file
awk -v X={$Y}
{
if ($0 ~ /X/ ) { sub (out.*/,"out1",$0) }
print 0
}, filename > temp
when i look into temp file i dont see any replacement... (9 Replies)
I been trying to figure out how to use element of array as a replacement pattern. This works as I expected:
$ echo "one two three" | awk '{
gsub(/wo/,"_BEG_&_END_",$2);
print }'
one t_BEG_wo_END_ three
$ echo "one two three" | awk '{
tmp="foo";
gsub(/wo/,"_BEG_" tmp "_END_",$2);... (5 Replies)
Hi!
(I'm just a newbie in awk & bash scripts) I have a script which replaces one column from an input file with a specified one from the same file. The input and the desired output files are shown below.
~ cat input.file
random text
Fe 1.33 23.23 3.33
C 21.03 23.23 3.33
Cu 0.00 ... (2 Replies)
Hi guys,
I worked for almost a half-day for the replacement of some text automatically with script. But no success.
The problem is I have hundred of files, which need to be replaced with some new text. It's a painful work to work manually and it's so easy to do it wrong.
For example,
I... (2 Replies)
Hi,
I have a big text file with similar data as below and need the text as in output
using awk or sed. any help is greatly appreciated.
Input:
City=Chicago Elden street
>>> reservedBy = business 1
>>> reservedBy = business 2
>>> reservedBy = business 3
City=Dallas Elm street
>>>... (5 Replies)
Discussion started by: tech_frk
5 Replies
LEARN ABOUT OSX
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[2]);
DESCRIPTION
The pipe() function creates a pipe (an object that allows unidirectional data flow) and allocates a pair of file descriptors. The first
descriptor connects to the read end of the pipe; the second connects to the write end.
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 pro-
gram: the source's standard output is set up to be the write end of the pipe; the sink's standard input is set up to be the read end of the
pipe. The pipe itself persists until all of 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.
The generation of the SIGPIPE signal can be suppressed using the F_SETNOSIGPIPE fcntl command.
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:
[EFAULT] The fildes buffer is in an invalid area of the process's address space.
[EMFILE] Too many descriptors are active.
[ENFILE] The system file table is full.
SEE ALSO sh(1), fork(2), read(2), socketpair(2), fcntl(2), write(2)HISTORY
A pipe() function call appeared in Version 6 AT&T UNIX.
4th Berkeley Distribution February 17, 2011 4th Berkeley Distribution