This is a very basic start, i'm sure something much more elegant could be done with awk
Code:
#!/bin/bash
FILE="/tmp/file.txt"
COUNT=1
for i in `cat ${FILE}`
do
if [ "$((${COUNT}%2))" -eq 1 ]
then
echo -n "${i}"
else
echo " ${i}"
fi
let COUNT=$COUNT+1
done
I tried to put the history line number and the date into the file with one command, and failed. Can't figure out how to get the date variable substituted for the last space captured.
history | tail -1 | sed -e 's/.\{7\}/&/g' | head -1 | sed 's/ $/$date/'
Result was:
729 $date
So, I... (8 Replies)
Dear all,
I would like to combine all lines of a file with all lines of another file:
The input are
file 1
A
B
C
D
file 2
A
B
C
D
The output is
final file
A_A
A_B
A_C (3 Replies)
Hi,
I have an issue to combine multiple lines of a file. I have records as below.
Fields are delimited by TAB. Each lines are ending with a new line char (\n)
Input
--------
ABC 123456 abcde 987
890456 7890 xyz
ght gtuv
ABC 5tyin 1234 789
ghty kuio
ABC ghty jind 1234
678 ght
... (8 Replies)
I can't decide if I should use AWK or PERL after pouring over these forums for hours today I decided I'd post something and see if I couldn't get some advice.
I've got a text file full of hundreds of events in this format:
Record Number : 1
Records in Seq : ... (3 Replies)
Hi All,
I am trying to understand if its possible to carry out the following.
I have a text file which contains output from multiple commands, within the file a node will be quiered twice if there was 2 commands for example. Is it possible do combine 2 lines into 1 if the first word is the... (1 Reply)
Hi,
I have a requirement where I need to combine two lines in a file based on first character of each line in a file.
Please find the sample content of the file below:
Code:
_______________________
5, jaya, male, 4-5-90, single
smart
6, prakash, male, 5-4-84, married
fair
7, raghavi,... (1 Reply)
Hi,
I have a requirement where I need to combine two lines in a file based on first character of each line in a file.
Please find the sample content of the file below:
Code:
_______________________
5, jaya, male, 4-5-90, single
smart
6, prakash, male, 5-4-84, married
fair
7, raghavi,... (1 Reply)
Hi,
I have a requirement where I need to combine two lines in a file based on first character of each line in a file.
Please find the sample content of the file below:
_______________________
5, jaya, male, 4-5-90, single
smart
6, prakash, male, 5-4-84, married
fair
7, raghavi, female,... (12 Replies)
I am trying to combine all matching lines in the tab-delimited using awk. The below runs but no output results. Thank you :).
input
chrX 110925349 110925532 ALG13
chrX 110925349 110925532 ALG13
chrX 110925349 110925532 ALG13
chrX 47433390 47433999 SYN1... (3 Replies)
Greetings,
I have large file with following format
name1 name2
name3 name4
name5 name6
child7 child8 child9 <== there is leading blank space
child10 child11 child12 <== there is leading blank space
name13 name14
name15 name16
child17 child18... (6 Replies)
Discussion started by: rnnyusa
6 Replies
LEARN ABOUT CENTOS
shuf
SHUF(1) User Commands SHUF(1)NAME
shuf - generate random permutations
SYNOPSIS
shuf [OPTION]... [FILE]
shuf -e [OPTION]... [ARG]...
shuf -i LO-HI [OPTION]...
DESCRIPTION
Write a random permutation of the input lines to standard output.
Mandatory arguments to long options are mandatory for short options too.
-e, --echo
treat each ARG as an input line
-i, --input-range=LO-HI
treat each number LO through HI as an input line
-n, --head-count=COUNT
output at most COUNT lines
-o, --output=FILE
write result to FILE instead of standard output
--random-source=FILE
get random bytes from FILE
-r, --repeat
output lines can be repeated
-z, --zero-terminated
end lines with 0 byte, not newline
--help display this help and exit
--version
output version information and exit
With no FILE, or when FILE is -, read standard input.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report shuf translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by Paul Eggert.
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
The full documentation for shuf is maintained as a Texinfo manual. If the info and shuf programs are properly installed at your site, the
command
info coreutils 'shuf invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 SHUF(1)
08-12-2012
