05-30-2012
Never mind friend. Thanks a lot for your time.
I figured out that the pipe '|' was causing the problem. So, i redirected the output of grep to a file and used that file as an input to awk.
It seems to be working now.
Having said that, still trying to figure out why pipe "|" is not working.
Cheers
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all;
I'm stuck with this simple awk script,i need to group the lines which the position of 28 length 3 that contains "688" into 1 group and other than "688" into another group. My problem is the script only read other than "688" and ignores the lines which contains "688".
The file look... (2 Replies)
Discussion started by: ashikin_8119
2 Replies
2. Shell Programming and Scripting
Dear All,
we have a command output which looks like :
Total 200 queues in 30000 Kbytes
and we're going to get "200" and "30000" for further process. currently, i'm using :
numA=echo $OUTPUT | awk '{print $2}'
numB=echo $OUTPUT | awk '{print $5}'
my question is : can I use just one... (4 Replies)
Discussion started by: tiger2000
4 Replies
3. Shell Programming and Scripting
Hello experts,
I'm stuck with this script for three days now. Here's what i need.
I need to split a large delimited (,) file into 2 files based on the value present in the last field.
Samp: Something.csv
bca,adc,asdf,123,12C
bca,adc,asdf,123,13C
def,adc,asdf,123,12A
I need this split... (6 Replies)
Discussion started by: shell_boy23
6 Replies
4. Shell Programming and Scripting
Hi, I have a problem with awk array when iam trying to use awk in solaris box as below..Iam unable to figure out the problem..
Need your help. is there any alternative to make it in arrays from variable values
nawk 'BEGIN {SUBSEP=" ";
split("101880|110045 101887|110045 101896|110045... (9 Replies)
Discussion started by: cskumar
9 Replies
5. Shell Programming and Scripting
Hi ,
Please excuse me for opening a new thread i am unable to find out the syntax error
in my if else condition inside for loop in awk command ,
my actual aim is to print formatted html td tag when if condition (True) having string as "failed",
could anyone please advise what is the right... (2 Replies)
Discussion started by: karthikram
2 Replies
6. Shell Programming and Scripting
Hi,
I'm trying to automate part of a script which uses awk to grab out some lines of a log file based on certain fields matching. For example, my log file looks something like the following (but 1000s of lines):
1 Tom 123 abc 345
2 Dick 345 abc 678
3 Harry 567 abc 345
4 Tom 345 cde 345... (3 Replies)
Discussion started by: chrissycc
3 Replies
7. Shell Programming and Scripting
Hi Gurus,
I have a command to assign value based on input value.
current condition is "if pattern matches "case", then assign "HOLD" else "SUCC"right now, I need to add one more condition (variable name is VAR).
the condition is "if pattern1 matches "case", then assign "HOLD" else if... (2 Replies)
Discussion started by: ken6503
2 Replies
8. Shell Programming and Scripting
Hello,
I have one query regarding passing IF condition shell variable inside awk. Here is the case-
File content of keydefn.exp
201~2~LM Limit 02-current value~Limit 02 ~Limit02~Current~Value ~N~Y~S~0~9999999
201~3~LM Limit 03-current value~Limit... (2 Replies)
Discussion started by: anillambait
2 Replies
9. UNIX for Beginners Questions & Answers
I have the following script, and I want to assign the output ($10 and $5) from awk to N and L:
grdinfo data.grd | awk '{print $10,$5}'| read N L
output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use... (8 Replies)
Discussion started by: geomarine
8 Replies
10. UNIX for Beginners Questions & Answers
Hi,
So awk is driving me crazy on this one. I have searched everywhere and read man, docs and every related post Google can find and still no luck. The actual files I need to run this on are sensitive in nature, but it is the same thing as if I needed to calculate weighted grades for multiple... (15 Replies)
Discussion started by: cotilloe
15 Replies
PIPE(2) System Calls Manual PIPE(2)
NAME
pipe - create an interprocess channel
SYNOPSIS
#include <u.h>
#include <libc.h>
int pipe(int fd[2])
DESCRIPTION
Pipe creates a buffered channel for interprocess I/O communication. Two file descriptors are returned in fd. Data written to fd[1] is
available for reading from fd[0] and data written to fd[0] is available for reading from fd[1].
After the pipe has been established, cooperating processes created by subsequent fork(2) calls may pass data through the pipe with read and
write calls. The bytes placed on a pipe by one write are contiguous even if many processes are writing. Write boundaries are preserved:
each read terminates when the read buffer is full or after reading the last byte of a write, whichever comes first.
The number of bytes available to a read(2) is reported in the Length field returned by fstat or dirfstat on a pipe (see stat(2)).
When all the data has been read from a pipe and the writer has closed the pipe or exited,
read(2) will return 0 bytes. Writes to a pipe with no reader will generate a note sys: write on closed pipe.
SOURCE
/sys/src/libc/9syscall
SEE ALSO
intro(2), read(2), pipe(3)
DIAGNOSTICS
Sets errstr.
BUGS
If a read or a write of a pipe is interrupted, some unknown number of bytes may have been transferred.
When a read from a pipe returns 0 bytes, it usually means end of file but is indistinguishable from reading the result of an explicit write
of zero bytes.
PIPE(2)