9 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Say I have this line:
read -p "Enter 3 numbers: " num1 num2 num3;
I want to write a while loop that repeatedly asks for input if the number of inputs entered is not equal to 3.
I don't know the correct command to find the number of inputs entered. Help, please? (4 Replies)
Discussion started by: jejemonx
4 Replies
2. Shell Programming and Scripting
Hi
I want to use awk to match where field 3 contains a number within string - then print the line and just the number as a new field.
The source file is pipe delimited and looks something like
1|net|ABC Letr1|1530|||
1|net|EXP_1040 ABC|1121|||
1|net|EXP_TG1224|1122|||
1|net|R_North|1123|||... (5 Replies)
Discussion started by: Mudshark
5 Replies
3. Shell Programming and Scripting
Input file:
ID_34 2E-69 2324
ID_1 0E0 3254
ID_1 0E0 5434
ID_5 0E0 436
ID_1 1E-14 2524
ID_1 5E-52 46437
ID_3 65E-20 45467
ID_1 0E0 6578
...
Desired output file:
ID_1 0E0 6578
ID_1 0E0 5434
ID_1 0E0 3254
ID_1 5E-52 46437
ID_1 1E-14 2524
ID_3 65E-20 45467 (5 Replies)
Discussion started by: cpp_beginner
5 Replies
4. Shell Programming and Scripting
Hi Power User,
I'm trying to compute this kind of text file format:
file1:
jakarta 100 150
jakarta 170 210
beijing 220 250
beijing 260 280
beijing 290 320
new_york 330 350
new_york 370 420
tokyo 430 470
tokyo 480 ... (2 Replies)
Discussion started by: anjas
2 Replies
5. Shell Programming and Scripting
I would like to print the number of records of 2 files, and divide the two numbers
awk '{print NR}' file1 > output1
awk '{print NR}' file2 > output2
paste output1 output2 > output
awl '{print $1/$2}' output > output_2
is there a faster way? (8 Replies)
Discussion started by: programmerc
8 Replies
6. Shell Programming and Scripting
I have a txt file as database. when i run my program what it does is it ask me for 3 name and stored in the file as
name1:name2:name3:1
when u enter 3 name it add those in file as above format and add 1 at the end. I what i want is if i enter same names again it changes that 1 to 2 and so... (3 Replies)
Discussion started by: Learnerabc
3 Replies
7. Shell Programming and Scripting
Hi Guys,
Please help me out in my situation of writing a shell script
Exampl:I have a output like
asnapply 1 2 3 apply_server=1 apply_schema=ASN
asnapply 1 2 3 apply_server=2 apply_schema=ASN
Now i need output like
asnacmd applysever=1 applyschema=ASN stop
asnacmd applysever=2... (16 Replies)
Discussion started by: mallak
16 Replies
8. UNIX for Dummies Questions & Answers
In my .exrc file I have line numbers turned on but it adds an indent. I don't like this, is there a way to have the line numbers at the left edge of my terminal instead of indented? Here's my .exrc
1 set ignorecase noslowopen report=0 autoindent showmatch showmode nu
2 set... (4 Replies)
Discussion started by: ebadamageplan
4 Replies
9. UNIX for Dummies Questions & Answers
as the title, I had try use "wc -l test.txt" but it give me "<many spaces> 384 test.txt" but the result I want is just "384" could any person can help me that?
Thx:( (5 Replies)
Discussion started by: a8111978
5 Replies
RAND(3) BSD Library Functions Manual RAND(3)
NAME
rand, rand_r, srand, sranddev -- bad random number generator
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
int
rand(void);
int
rand_r(unsigned *seed);
void
srand(unsigned seed);
void
sranddev(void);
DESCRIPTION
These interfaces are obsoleted by arc4random(3).
The rand() function computes a sequence of pseudo-random integers in the range of 0 to RAND_MAX (as defined by the header file <stdlib.h>).
The srand() function sets its argument seed as the seed for a new sequence of pseudo-random numbers to be returned by rand(). These
sequences are repeatable by calling srand() with the same seed value.
If no seed value is provided, the functions are automatically seeded with a value of 1.
The sranddev() function initializes a seed, using the random(4) random number device which returns good random numbers. However, the rand()
function still remains unsuitable for cryptographic use.
The rand_r() function provides the same functionality as rand(). A pointer to the context value seed must be supplied by the caller.
SEE ALSO
arc4random(3), random(3), random(4)
STANDARDS
The rand() and srand() functions conform to ISO/IEC 9899:1990 (``ISO C90'').
The rand_r() function is as proposed in the POSIX.4a Draft #6 document.
BSD
May 25, 1999 BSD