Hi All,
I have a file that I need to be able to find a pattern match on one line then parse data on the next or subsequent lines - I will know which line needs to be parsed beforehand.
This is what I currently have:
while (<COMMAND_OUT>) {
if ($_ =~ m/TEST/) {
... (4 Replies)
Hi there
Does anybody know how to get grep to return the line underneath the string i am grepping for ie, if i have this file
hello
everybody
how
are
you
and i issue #cat file | grep how
I would like it to return the line below (in this case the string "are")
Is this... (2 Replies)
Hi! I'm just new here and don't know much about shell scripting. I just want to ask for help in creating a shell script that will parse a string or value of the status in the xml file. Please sample xml file below. Can you please help me create a simple script to get the value of status? Also it... (46 Replies)
I have looked at almost every posting on here regarding, grep, sed, awk, nawk, perl methods to perform this function, but they are just not returning the results I hope to see.
Example File:
abcdef
123456
ghijkl
7890123
7890123
7890123
7890123
mnopqrs
456789
This is the most... (4 Replies)
Hi,
I need to parse input file from 2nd line.
Input file contents are,
ABC123;20100913115432;2000000;NO;
04;AAA;09;DDD;601020304;AAAA;1;OPTA1;OPTA2;;;
04;BBB;09;BBB;601020304;BBBB;0;OPTB1;OPTB2;OPTB3;OPTB4;OPTB5;
04;CCC;09;DDD;601020304;CCCC;1;;;;;
For each line,
1] I need to check... (17 Replies)
Hi Guys,
I am new to awk and sed, i am working multiline document, i want to make make that document into SINGLE lines based on occurace of string "dwh".
here's the sample of my problem..
dwh123 2563 4562 4236 1236 78956 12394 4552 dwh192 2656 46536 231326 65652 6565 23262 16625623... (5 Replies)
Hi All,
Can you please guide me to search a string in a particular column of file and return the line number of the line where it was found using awk. As an example :
abc.txt
7000,john,2,1,0,1,6
7001,elen,2,2,0,1,7
7002,sami,2,3,0,1,6
7003,mike,1,4,0,2,1
8001,nike,1,5,0,1,8... (3 Replies)
I have a file with data records separated by multiple equals signs, as below.
==========
RECORD 1
==========
RECORD 2
DATA LINE
==========
RECORD 3
==========
RECORD 4
DATA LINE
==========
RECORD 5
DATA LINE
==========
I need to filter out all data from this file where the... (2 Replies)
$ cat bashtest
#!/usr/local/bin/bash
echo <<<"EOF"
line1
line2
line3
EOF
$ ./bashtest
./bashtest: line 3: line1: command not found
./bashtest: line 4: line2: command not found
./bashtest: line 5: line3: command not found
./bashtest: line 6: EOF: command not found
What am i doing... (4 Replies)
Discussion started by: urello
4 Replies
LEARN ABOUT CENTOS
truncate
TRUNCATE(1) User Commands TRUNCATE(1)NAME
truncate - shrink or extend the size of a file to the specified size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole)
reads as zero bytes.
Mandatory arguments to long options are mandatory for short options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=RFILE
base size on RFILE
-s, --size=SIZE
set or adjust the file size by SIZE bytes
--help display this help and exit
--version
output version information and exit
SIZE is an integer and optional unit (example: 10M is 10*1024*1024). Units are K, M, G, T, P, E, Z, Y (powers of 1024) or KB, MB, ...
(powers of 1000).
SIZE may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
down to multiple of, '%' round up to multiple of.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report truncate translation bugs to <http://translationpro-
ject.org/team/>
AUTHOR
Written by Padraig Brady.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO dd(1), truncate(2), ftruncate(2)
The full documentation for truncate is maintained as a Texinfo manual. If the info and truncate programs are properly installed at your
site, the command
info coreutils 'truncate invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 TRUNCATE(1)