Dear Friends
I have text file as like below,
AAAAA|BHBHBH|VERYSMART
AAAAA| KKKKKK|GOOD
BBBBBB|JJJJJJJ|VERYGOOD
CCCCC|HJHJHJ|BETTER
CCCCC|UUUUU|GOOD
i need to split into seperate files based on column 1 like as below
AAAAA.TXT contains
--------------------
BHBHBH.VERYSMART... (4 Replies)
:confused: Hi UNIX gurus,
I am facing a typical problem while assigining while assigining output of awk to a variable.
I have a fixed length file say myinputfile.txt
When I allow the value/output of an awk to be redirected to a file, it works fine. i.e.
awk "/^.{232}$acctNum/ {... (8 Replies)
greetings all,
I am have a heck of a time trying to accomplish a very simple thing. I have an array of "shortname<spaces>id" created from a dscl output. I want to assign shortname=word1 and id=word2. I have tried
shortname=$(${textArray} | awk '{print $1}') - and get 'awk : cannot open... (3 Replies)
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)
hi i want to find the size of a folder and assign it to a variable and then compare if it is greater than 1 gb.
i am doin this script, but it is throwing error....
#!/bin/ksh
cd . | du -s | size = awk '{print $1}'
if size >= 112000
then
echo size high
fi
ERROR : (4 Replies)
I launch 'netstat -a', if string 'ESTABLISHED' found, then VAR=1
#!/bin/bash
VAR=0;
netstat -a | awk '$6 ~ /ESTABLISHED/ {VAR=1}'
I cannot find the right syntax.
thanx guys! (3 Replies)
Hello,
I have searched but failed to find what exactly im looking for,
I need to eliminate first "." in a output so i can use something like the following
echo "./abc/20141127" | nawk '{gsub("^.","");print}'
what i want is to use gsub result later on, how could i achieve it?
Let say... (4 Replies)
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
LEARN ABOUT FREEBSD
libstdbuf
LIBSTDBUF(3) BSD Library Functions Manual LIBSTDBUF(3)NAME
libstdbuf -- preloaded library to change standard streams initial buffering
DESCRIPTION
The libstdbuf library is meant to be preloaded with the LD_PRELOAD environment variable to as to change the initial buffering of standard
input, standard output and standard error streams.
Although you may load and configure this library manually, an utility, stdbuf(1), can be used to run a command with the appropriate environ-
ment variables.
ENVIRONMENT
Each stream can be configured independently through the following environment variables (values are defined below):
_STDBUF_I
Initial buffering definition for the standard input stream
_STDBUF_O
Initial buffering definition for the standard output stream
_STDBUF_E
Initial buffering definition for the standard error stream
Each variable may take one of the following values:
"0" unbuffered
"L" line buffered
"B" fully buffered with the default buffer size
size fully buffered with a buffer of size bytes (suffixes 'k', 'M' and 'G' are accepted)
EXAMPLE
In the following example, the stdout stream of the awk(1) command will be fully buffered by default because it does not refer to a terminal.
libstdbuf is used to force it to be line-buffered so vmstat(8)'s output will not stall until the full buffer fills.
# vmstat 1 | LD_PRELOAD=/usr/lib/libstdbuf.so
STDBUF_1=L awk '$2 > 1 || $3 > 1' | cat -n
See also the manpage of stdbuf(1) for a simpler way to do this.
HISTORY
The libstdbuf library first appeared in FreeBSD 8.4.
AUTHORS
The original idea of the libstdbuf command comes from Padraig Brady who implemented it in the GNU coreutils. Jeremie Le Hen implemented it
on FreeBSD.
BSD April 28, 2012 BSD