10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dear experts,
I am writing a bash script. At some point of the program I need to have 'for' loop. For simplicity I tried with some other simple code. The format of the loop is given below.
k=51
m=55
for j in {$k..$m};do
w=$(($j+2))
z=$(($j+9))
echo "$w, $z"
done
But my... (4 Replies)
Discussion started by: vjramana
4 Replies
2. Shell Programming and Scripting
Dear All,
I have the following awk script.
#!/bin/bash
sh stdev.cmd data.file | awk '{print $2}' > out.data
read d < out.data
echo $d
awk '{print $1,$2- $f}' new > newz
The script runs "stdev.cmd" and output a file "out.data" and the value of the... (2 Replies)
Discussion started by: Yacob_123
2 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I'm pretty poor at using UNIX but I'm learning. Please help me with these simple problems! Much appreciated!
1. I've changed my shell from bash to csh but I prefer bash. How do I change back? I've tried using chsh -s but it's not working!
2. I'm trying to download TopCat. I've done... (2 Replies)
Discussion started by: SimonWhite
2 Replies
4. Programming
hello,
i'm trying to write a C-program that reads a file line by line.
(and searches each line for a given string)
This file is an special ASCII-database-file, with a lot of entries.
I checked the line with most length, and it was about 4000 characters.
With google i found several... (4 Replies)
Discussion started by: p1cm1n
4 Replies
5. Shell Programming and Scripting
hi people;
i have a text, iptables.txt and values are as follows inside: (seperators are TAB)
10.15.2.2 2 40 10.15.3.3 1 10 10.32.2.1 3 40 10.33.6.7 2 50
10.16.3.2 1 60 10.11.3.9 1 20 10.19.2.1 1 80
10.16.9.9 3 20
10.29.7.9 2 90 10.33.2.7 3 40
......
i... (5 Replies)
Discussion started by: gc_sw
5 Replies
6. Shell Programming and Scripting
Hello!
I have somo problems with simple scripts like this:
#!/bin/bash
echo -n "Enter your name and press : "
read var_name
echo "Your name is: $var_name"
When I try to run it, this error occurs: ':not a valid identifier var_name.
Why?? (I work in cygiwin)
Is there anybody out... (10 Replies)
Discussion started by: blianna
10 Replies
7. UNIX for Dummies Questions & Answers
I need to chmod a bunch of files with a specific extension in one directory.
If I understand correctly first I would run ls command like this
ls -R | grep .mp3 > /tmp/list
once I have the output file I should be able to run a loop to chmod all the files in the list created.
This is where... (5 Replies)
Discussion started by: eugenes18t
5 Replies
8. Shell Programming and Scripting
I am trying to get a script working that will perform a simple database lookup using the join command.
Here are the two files that I am trying to join:
% cat lookup1.txt
Number_1 Other_data_a
Number_5 Other_data_b
Number_8 Other_data_c
Number_10 Other_data_d
% cat... (2 Replies)
Discussion started by: JasonHamm
2 Replies
9. Shell Programming and Scripting
Hi expert,
I'm using csh
Code:
#!/bin/csh
set x = 0
set number = `awk '{array=$0} END {print array;}'`
i want to use for loop to store data to $number repeatly
untill x = 23
How to use c shell for loop? (2 Replies)
Discussion started by: vincyoxy
2 Replies
10. Shell Programming and Scripting
i have the following process running in background:
when i give "ps -lef"
------------------------------------------------------------------------
user2
user1
user1
user3
user1
user4
user5
user4
user3
user4
user2
user1
user1
user3
user1
user4 (3 Replies)
Discussion started by: ali560045
3 Replies
SEQ(1) FSF SEQ(1)
NAME
seq - print a sequence of numbers
SYNOPSIS
seq [OPTION]... LAST
seq [OPTION]... FIRST LAST
seq [OPTION]... FIRST INCREMENT LAST
DESCRIPTION
Print numbers from FIRST to LAST, in steps of INCREMENT.
-f, --format=FORMAT
use printf style floating-point FORMAT (default: %g)
-s, --separator=STRING
use STRING to separate numbers (default:
)
-w, --equal-width
equalize width by padding with leading zeroes
--help display this help and exit
--version
output version information and exit
If FIRST or INCREMENT is omitted, it defaults to 1. FIRST, INCREMENT, and LAST are interpreted as floating point values. INCREMENT should
be positive if FIRST is smaller than LAST, and negative otherwise. When given, the FORMAT argument must contain exactly one of the printf-
style, floating point output formats %e, %f, %g
AUTHOR
Written by Ulrich Drepper.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for seq is maintained as a Texinfo manual. If the info and seq programs are properly installed at your site, the
command
info seq
should give you access to the complete manual.
seq (coreutils) 4.5.3 February 2003 SEQ(1)