01-31-2009
conditional statement
Hi all,
The following code is to find if a list of numbers from one file are within the range in another file.
awk -F, '\
BEGIN {
while ((getline < "file2") > 0)
file2[$2]=$3
}
{for (col1 in file2)
if ($0>=30 && $1<=45)
print $0} ' FILE1
But where I have the number 30 and 45, I want this to refer to column1 and column 2, respectively of another file (FILE1) and print from FILE1 if the conditional statement is true. I feel I am almost there!
Thanx
Sabz
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
how can i use awk or sed to do a conditional statement, so that
HH:MM
if MM not great than 30 , then MM=00
else MM=30
ie:
10:34 will display 10:30
10:29 will display 10:00
a=$(echo 10:34 | awk ......)
Thanks in advance (10 Replies)
Discussion started by: 3Gmobile
10 Replies
2. Shell Programming and Scripting
can somebody help, what quote i should use in below statement or what wrong of it ?
the 1st (*) is a char, the 2nd and 3rd (*) is a wildcard
if ] && ] && ]
................^ .............^
then
echo "ok"
fi
thanks in advance. (2 Replies)
Discussion started by: 3Gmobile
2 Replies
3. Shell Programming and Scripting
Hi
Does Unix have a conditional statement like Java as follows:
Condition ? Statement1 : Statement2
Thanks (8 Replies)
Discussion started by: lalelle
8 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I'm getting a "bad number" error from the following conditional if statement. I understand the results of the grep command are not being treated a an integer but am unsure of the correct syntax. Any help would be appreciated.
if
Thanks (2 Replies)
Discussion started by: dlafa
2 Replies
5. Shell Programming and Scripting
Hi,
I have a script like this:
sample.sh
mapping=$1
if
then
echo "program passed"
fi
I'm running the above script as ./sample.sh pass
The script is not getting executed and says "integer expression expected"
Could anyone kindly help me? (2 Replies)
Discussion started by: badrimohanty
2 Replies
6. Shell Programming and Scripting
I want to add a conditional statement to a user's .profile file. I have a certain number of users that log in and use the rksh (Restricted Korn Shell). When they log in, it starts a certain program and when they exit this program, the system logs them out. When they are in this program, they can... (2 Replies)
Discussion started by: rjulich
2 Replies
7. Shell Programming and Scripting
I'm trying to create a shell script that will check for new files and or folders and if it exist then copy them to a different directory.
Does anyone have a idea?
if ;
then
echo "Copying files from the Upgrade Server"
cp -Ruavp /home/upgrade/hex-code/*... (7 Replies)
Discussion started by: binary-ninja
7 Replies
8. UNIX for Advanced & Expert Users
I need to implement something like this.
1) search for a file(say *.doc) from a path (say /home/user/temp)
2) if file found & if file size > 0 : yes --> file valid
else : print file not valid.
I am trying to implement something like this, but seems i am terribly wrong somewhere.. ... (1 Reply)
Discussion started by: animesharma
1 Replies
9. Shell Programming and Scripting
Hi,
I wanted to know if we can use conditional statements like if--else--fi inside an automated SFTP script session. (1 Reply)
Discussion started by: jhilmil
1 Replies
10. Programming
Hi experts,
I am doing an exercise which has the following requirements.
Charlie will bite your finger exactly 50% of the time. First, write a function isBitten() that returns TRUE with 50% probability, and FALSE otherwise
To generate a webpage that displays "Charlie bit your finger!" or... (1 Reply)
Discussion started by: Navneet_das_123
1 Replies
JOIN(1) BSD General Commands Manual JOIN(1)
NAME
join -- relational database operator
SYNOPSIS
join [-a file_number | -v file_number] [-e string] [-o list] [-t char] [-1 field] [-2 field] file1 file2
DESCRIPTION
The join utility performs an ``equality join'' on the specified files and writes the result to the standard output. The ``join field'' is
the field in each file by which the files are compared. The first field in each line is used by default. There is one line in the output
for each pair of lines in file1 and file2 which have identical join fields. Each output line consists of the join field, the remaining
fields from file1 and then the remaining fields from file2.
The default field separators are tab and space characters. In this case, multiple tabs and spaces count as a single field separator, and
leading tabs and spaces are ignored. The default output field separator is a single space character.
Many of the options use file and field numbers. Both file numbers and field numbers are 1 based, i.e., the first file on the command line is
file number 1 and the first field is field number 1. The following options are available:
-a file_number
In addition to the default output, produce a line for each unpairable line in file file_number.
-e string
Replace empty output fields with string.
-o list
The -o option specifies the fields that will be output from each file for each line with matching join fields. Each element of list
has either the form file_number.field, where file_number is a file number and field is a field number, or the form '0' (zero), repre-
senting the join field. The elements of list must be either comma (',') or whitespace separated. (The latter requires quoting to
protect it from the shell, or, a simpler approach is to use multiple -o options.)
-t char
Use character char as a field delimiter for both input and output. Every occurrence of char in a line is significant.
-v file_number
Do not display the default output, but display a line for each unpairable line in file file_number. The options -v 1 and -v 2 may be
specified at the same time.
-1 field
Join on the field'th field of file1.
-2 field
Join on the field'th field of file2.
When the default field delimiter characters are used, the files to be joined should be ordered in the collating sequence of sort(1), using
the -b option, on the fields on which they are to be joined, otherwise join may not report all field matches. When the field delimiter char-
acters are specified by the -t option, the collating sequence should be the same as sort(1) without the -b option.
If one of the arguments file1 or file2 is '-', the standard input is used.
EXIT STATUS
The join utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
For compatibility with historic versions of join, the following options are available:
-a In addition to the default output, produce a line for each unpairable line in both file1 and file2.
-j1 field
Join on the field'th field of file1.
-j2 field
Join on the field'th field of file2.
-j field
Join on the field'th field of both file1 and file2.
-o list ...
Historical implementations of join permitted multiple arguments to the -o option. These arguments were of the form
file_number.field_number as described for the current -o option. This has obvious difficulties in the presence of files named 1.2.
These options are available only so historic shell scripts do not require modification and should not be used.
SEE ALSO
awk(1), comm(1), paste(1), sort(1), uniq(1)
STANDARDS
The join command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD
July 5, 2004 BSD