10 More Discussions You Might Find Interesting
1. OS X (Apple)
Well i set myself a challenge to have an FFT function using nothing but ksh93 and awk.
It took some serious jiggery pokery and concentration with all the brackets and '$' characters but here is the result. It is RADIX 2 only, but hey, show me another UNIX shell script that does it. It IS SLOW but... (17 Replies)
Discussion started by: wisecracker
17 Replies
2. Shell Programming and Scripting
Stumped with the formatting of the awk output when used with variables, e.g.:
awk -F, 'BEGIN {OFS=","} print {$2,$3,$4}' $infile1
produces the desired output (with rows), but when echoing the variable below, the output is one continuous line
var1=$(awk -F, 'BEGIN {OFS=","} print... (4 Replies)
Discussion started by: ux4me
4 Replies
3. Shell Programming and Scripting
i have a script that has many lines similar to:
echo $var | awk -F"--" '{print $2}'
as you can see, two commands are being run here. echo and awk.
id like to combine this into one awk statement.
i tried:
awk -F"--" "BEGIN{print $var; print $2}"
but i get error messages. (10 Replies)
Discussion started by: SkySmart
10 Replies
4. Shell Programming and Scripting
Hello all,
I wrote this command line for some calculation on my given input files based on another input file which is a txt file.
while read BAM REGION; do samtools view $BAM $REGION | awk '{if ($2==0) print $0}' | wc -l >>log.txt; echo "$REGION"; done >> log.txt <regions.txt
It takes... (4 Replies)
Discussion started by: @man
4 Replies
5. Shell Programming and Scripting
Hi,
I have a large number of input files with two columns of numbers.
For example:
83 1453
99 3255
99 8482
99 7372
83 175
I only wish to retain lines where the numbers fullfil two requirements. E.g:
=83
1000<=<=2000
To do this I use the following... (10 Replies)
Discussion started by: s052866
10 Replies
6. Shell Programming and Scripting
Hi,
I have a script which looks like this.
Input file
data1^20
data2^30
#!/bin/sh
file"/home/Test.txt"
while read line
do
echo $line |awk 'BEGIN { FS = "^" } ; { print $2 }'
echo $line |awk 'BEGIN { FS = "^" } ; { print $1 }' | gzip | wc -c
done <"$file"
How can i... (4 Replies)
Discussion started by: chetan.c
4 Replies
7. Shell Programming and Scripting
Hi,
I have a script that, basically, has two input files of this type:
file1
key1=value1_1_1
key2=value1_2_1
key4=value1_4_1
...
file2
key2=value2_2_1
key2=value2_2_2
key3=value2_3_1
key4=value2_4_1
...
My files are 10k lines big each (approx).
The keys are strings that don't... (7 Replies)
Discussion started by: fzd
7 Replies
8. Shell Programming and Scripting
I have a text file that contains 4 million lines, each line contains 2 fields(colon as field separator). as shown:
123:444,555,666,777,888,345
233:5444,555,666,777,888,345
623:454,585,664,773,888,345
......
Here I have to split the second field(can be up to 40,000 fields) by comma into an... (14 Replies)
Discussion started by: kevintse
14 Replies
9. Shell Programming and Scripting
Hello,
I have written the script below to extract specific data from a text file and then use the data extracted as parameters for another shell script call 'loto_tsim'.
Everytime I run my script it complains about the 'echo' line. Am I missing something? I have spent hours and still cannot solve... (10 Replies)
Discussion started by: jermaine4ever
10 Replies
10. Shell Programming and Scripting
Hi All,
I have the below command.
awk 'BEGIN {printf("%1s","cat")}' > temp.txt
can i do the same using echo ?If So, how?
Thanks
JS (2 Replies)
Discussion started by: jisha
2 Replies