Hi miller,
Thanks for your response. This is something new that I have learnt.
lilly07
Last Activity: Feb 24 '11, 11:41 PM
Joined: Jul 15 '08
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Call java jar from perl script
Hi,
I have to call ' java -jar name.jar arg1 arg2' in my perl script. The java prints a string if we invoke the above command How to capture this information.
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Thanks Jeff.Leave a comment:
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How to find if the number exists in a range?
Basically, I want to check whether $x is in between $y and $z.
I always compare them with simple if statement as below.
Any other way of doing this in a better manner available? Thanks.Code:if(($x > $y) && ($x < $z))
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Thx Orally for you help. Finallyworked.Code:egrep ' 1\$\'
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Hi,
Thx for your response. My data is tab delimited columns. Hence I wanted to grep lines with last column as 1. So I used (control+v then tab key to get
' $1' the last column which ends with 1. I will try with egrep. When I just use a she ll script with above description, it works and hence I constructed as system command inside my perl script. But it doesn't work as my syntax is wrong. Thanks again.Leave a comment:
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shell command inside perl script
I am trying to use a shell grep command inside a perl script using system command as below.
I am trying to grep for lines that ends with 1 inside the system command. system command concatenates everything and writing into output file and grep ' $1' does not work. I tried with double...Code:system "cat $source_path/s_${i}_${j}_0*testing.txt | grep ' $1' | head > $path/s_${i}_${j}.txt"; -
Thanks forr your help Jeff.Leave a comment:
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Getting argument as filename or STDIN
I am trying to read a file. The file contents can be either STDIN or a file name.
When it is from a file, I open as follows.
Otherwise if it is from STDIN, I always useCode:Open filename ($filename) While(<$filename>){ #process each line }
Now my constraint is the user can either specify the file name...Code:while(<>){ #process each line } -
Echo statement inside the for loop is correctly printing the file path. But I get to to see theerror like "cat... No file found " three times because the path is broken. How can it happen? How can the path gets broken in the cat statement but not in echo statement. Please clarify. Thanks in advance.
Is there any problem because of line 11 and 12 of my code as I am trying to get the name of the file from directory path. No clue...Leave a comment:
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doubts about shell scripting!
I am trying to concatenate some 100 files from one directory and writing them into another directory and I want to automate this as follows:
But cat statement inside for loop does not work. But echo statement inside the for loop shows the correct path to the files? Why is it not concatenating files? I am new to shell scripting. Thanks in advance.
...Code:if [ $# -lt 4 ] then echo Usage: -
perl merging data
Hi I need to merge my data as below and its highly confusing and please let me know how to do.
...Code:3 131835844 131835943 3 131830073 131830172 18 33659786 33659885 18 33653576 33653675 2 146593375 146593474 2 146578884 146578983 3 83938058 83938157 3 83935615 83935714 4 46493910
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remove lines from a huge text file
Hi,
I have a 10 million record in a tab delimited text file (data.txt) and I have another file with line numbers (line_num.txt).
My data.txt is as follows
My line_num.txt is as follows:Code:first 1 res 234 sec 23 fre 890 dec 26 der 690 ...
I have to remove the lines ( 23rd, 456th, 3467th) line from...Code:23 456 3467 ...
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Thanks Ron. Thats a great help..Leave a comment:
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Hi to be frank,
I have not used perl HoH before and still confusing after seeing some examples. I tried as beolw and am not able to achieve as I said above.
...Code:while ( <> ) { chomp $_; @v = split(/\t/,$_); $bin = $v[2]; $key = $v[1]; $value = $v[1]; $HoH{$bin}{$key} = $value; }Leave a comment:
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Hi thx fir the response...Leave a comment:
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perl hash data
Hi,
I have a doubt regarding perl hash data. I have a tab delimited as below:
file1.txt
My objective would be to count the anumber of AM and PM according to the bin number as below:Code:name1 AM bin1 name2 AM bin1 name3 PM bin1 name4 AM bin2 name5 AM bin1 name6 PM bin2
bin1 3AM 1PM
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Hi Jeff,
my sample test2.txt contains the following in the 13th and 35th column.
...Code:57583225 57580491 57583262 57580492 58049166 58012648 57583215 57580442 59416357 59435981 56506459 56164151 63518481 63509149 58053224 58138139 59675405 60296224 59675408 60296279
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perl search algorithm
Hi, there are two text files as below:
test1.txt
test2.txt is a tab delimited...Code:53015910 53018079 53028477 53039398 53057449 53060200 53062918 53067636 53068725 53070903 53073104 53082405 53157340 53159848 53162114 53164278 53170778 53177010 53186077 53190880
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Yes. Thank you so much for your response.
I managed to remove duplicates as below. A very simple way.
As I don't know how to compare between two hashes, I couldn't proceed further. I will definitely follow pushing the data in to perl key and array as you suggested....Code:%seen = (); while(<>){ $seen{$_}++; next if $seen{$_} > 1; print "$_"; }Leave a comment:
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