How do I check if a variable consisted of letters, numbers or both letters and numbers?
For example, I have a variable $X and I want to print "1" if it contains only letters, "2" if it contains only numbers and "3" if it contains both (2 Replies)
Hello all I am a unix newbie....
I have a sun netra t1 and it is freaking out
I am connected to it through a console port, and it is just spitting out a ton on numbers and letters like below its just keeps going and going.
I have tried rebooting it and I cannot get it back to any kind of a... (1 Reply)
Hi friends
How can I use "for loop" for decimal numbers?
ex: 0.1 < x < 0.6
I used this commands but does'nt work.
LIMIT=0.6
for ((x=0.1; x<=LIMIT; x++))
do
-
-
-
done
Many thanks (1 Reply)
Hello...
I am new to unix and I am wondering if in a C-shell script , Are we supposed to use only whole numbers........ for example..if a program needs to calculate the average of some numbers........
@ avg = (($1 +$2 + $3)/3)) is returning a whole number.........How can a decimal be... (7 Replies)
If I have a set of strings,
C21
F231
H42
1C10
1F113
and I want to isolate the ints following the char, what would the sed string be to find numbers after letters?
If I do,
*, I will get numbers after letters, but I am looking to do something like,
sed 's/*/\t*/g'
this will give me... (14 Replies)
Hi,
I columns with both number and letters however i need the number 4 trimmed off the lines that have 3 numbers in them so it just because the 2 preceding numbers only
For example
V25QG2-K18QG-V25CG2
L26HG-L17HA-L26CG
I434QD1-L19HB2-I434CD1
I434QD1-A31QB-I434CD1 ... (7 Replies)
Hi Experts,
I am finding difficulty to get exact match:
file
OPERATING_SYSTEM=HP-UX
LOOPBACK_ADDRESS=127.0.0.1
INTERFACE_NAME="lan3"
IP_ADDRESS="10.53.52.241"
SUBNET_MASK="255.255.255.192"
BROADCAST_ADDRESS=""
INTERFACE_STATE=""
DHCP_ENABLE=0
INTERFACE_NAME="lan3:1"... (6 Replies)
Hello,
I have a file such as this:
chr1
chr2
chr1
chr2
chr3
chr10
chr4
chr5
chrz
chr1AI want to sort it, I use this command:
sort -k1 -th -n testfilebut I get this output, how can I fix this?
chr1
chr1
chr10
chr1A
chr2
chr2 (3 Replies)
I have a file with hundreds of lines in it. I wanted to extract anything that matches the following:
KR followed by 4 digits:
example KR1201
cat list | sed "s///g"
Is the closest I've come, and obviously it is not what I want. This would remove all of the items that I want and leave me... (2 Replies)
Heyas
Just a little fun script (code block) i'd like to share for fun.
#/bin/bash
# roman.sh
#
# Function
#
num2roman() { # NUM
# Returns NUM in roman letters
#
input=$1 # input num
output="" # Clear output string
len=${#input} # Initial length to count down
... (9 Replies)
Discussion started by: sea
9 Replies
LEARN ABOUT CENTOS
fmt
FMT(1) User Commands FMT(1)NAME
fmt - simple optimal text formatter
SYNOPSIS
fmt [-WIDTH] [OPTION]... [FILE]...
DESCRIPTION
Reformat each paragraph in the FILE(s), writing to standard output. The option -WIDTH is an abbreviated form of --width=DIGITS.
Mandatory arguments to long options are mandatory for short options too.
-c, --crown-margin
preserve indentation of first two lines
-p, --prefix=STRING
reformat only lines beginning with STRING, reattaching the prefix to reformatted lines
-s, --split-only
split long lines, but do not refill
-t, --tagged-paragraph
indentation of first line different from second
-u, --uniform-spacing
one space between words, two after sentences
-w, --width=WIDTH
maximum line width (default of 75 columns)
-g, --goal=WIDTH
goal width (default of 93% of width)
--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 fmt translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by Ross Paterson.
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 fmt is maintained as a Texinfo manual. If the info and fmt programs are properly installed at your site, the
command
info coreutils 'fmt invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 FMT(1)