10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
I'm trying to create a shell script that takes a awk script that I wrote and a filename as an argument. I was able to get that done but I'm having trouble figuring out how to keep the header of the output at the top but sort the rest of the rows alphabetically. This is what I have now but it is... (1 Reply)
Discussion started by: Eric7giants
1 Replies
2. Programming
Hi again and thanks to R.Singh.
One more question here.
The code works in awk. (or GAWK)
awk 'BEGIN{print "Enter your Name: ";getline name < "-";print RS "Input entered by user is: "name}'
How to display the variable name again ?
The awk script is running automaticly to the... (3 Replies)
Discussion started by: Zabo
3 Replies
3. Shell Programming and Scripting
Hi
I have a text file (Input.txt) with two column entries separated by tab as given below:
aaa str1
bbb str2
cccccc str3
dddd str4
eee str3
ssss str2
sdf str3
hhh str1
fff str2
ccc str3
.....
.....
..... (1 Reply)
Discussion started by: my_Perl
1 Replies
4. Shell Programming and Scripting
The below awk script (loop.awk) is in the cygwin home directory. I do a cd to the directory where the Sources.txt is (where I would like the data output in), but the script does not run: echo loop | ./loop.awk
loop.awk
#!/bin/awk -f
BEGIN {}
cat Sources.txt | while read a
do... (10 Replies)
Discussion started by: cmccabe
10 Replies
5. Shell Programming and Scripting
HI,
MY question is a very simple one:
if i want to call an awk script with the input file name and also pass a variable value , then how to do it.
#>awk -f my_script.awk -v variable=value my_inputfile.txt
I can't do it like this.
throws error:
awk: my_script.awk:18:... (0 Replies)
Discussion started by: Onkar Banerjee
0 Replies
6. Shell Programming and Scripting
hi everyone
i am trying to do this
bash> cat abc.sh
deepak()
{
echo Deepak
}
deepak
bash>./abc.sh
Deepak
so it is giving me write simply i created a func and it worked
now i modified it like this way
bash> cat abc.sh (2 Replies)
Discussion started by: aishsimplesweet
2 Replies
7. Shell Programming and Scripting
So, I have this script. It reads a CSV file that has a mixture of object names with IP addresses (parsing out that part I have working), and object names which have a DNS name. I want to be able to run a "dig +short" based off of the name given to me in the line of the awk script, and then deal... (6 Replies)
Discussion started by: mikesimone
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8. Shell Programming and Scripting
#!/bin/bash
awk '
function ad(t,r){
return (t+r);
}
BEGIN{
print ad(5,3);
}
{
print ad(5,3);
}
'
Doesn't print anything for the last print ad(5,3); (6 Replies)
Discussion started by: cola
6 Replies
9. Shell Programming and Scripting
BEGIN { account_no = substr($0,1,8)}
{ billdate = substr($0,13,20)}
{ billduedate = substr($0,21,28)}
{ billid = billid - 1}
{ billduedate = billdatecalc(billduedate - 1)}
...
END ....
How do I call the shell script billdatecalc(arguments ..) in an... (1 Reply)
Discussion started by: Amruta Pitkar
1 Replies
10. UNIX for Dummies Questions & Answers
Hi,
this is my test file :
DELETE FROM TABLE
WHERE ID_INTERNAL = :TABLE.ID-INTERNAL, ID-INTERNAL-CRAZY
ID-INTERNAL-OPEN
ID-INTERNAL
/ID-INTERNAL/
I want all occurences of ID-INTERNAL replaced with a one, if ID-INTERNAL has and dash afer it , dont replace it example:... (6 Replies)
Discussion started by: seaten
6 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