Hi, so far as I know, there isn't any truly easy way to do this in Perl in quite the same way that awk and sed provides.
But there are two Perl apps that will convert awk and sed code into Perl for you, so you can perhaps learn from them instead.
The first being a2p (awk to perl) and the second being s2p (sed to perl)
To answer one of your example questions, you can emulate "head" in sed with the command:
So, to convert that into Perl code and save it to a file for reading. The command:
Would acheive that.
Although, I did say that there isn't any truly easy way in Perl, and you may be quite blown by the output of that command.
Hi everybody:
I try to print in new file selected lines from another file wich depends on the first column.
I have done a script like this:
lines=( "1" "2" "3" "4" "5" "6" "7" "8" "9" "10" "11" "21" "31" "41" "51" "55" "57" "58" )
${lines}
for lines in ${lines}
do
awk -v ... (6 Replies)
Hello.
I face this (2 side) problem.
Some lines with this structure.
...........
12345678 4
12345989 13
12346356 205
12346644 74
12346819 22
.........
The first field (timestamp) is growing (or at least equal).
1)Sum the second fields if the first_field/500 are... (8 Replies)
Hi,
I am looking to copy selected lines from a file using the vim editor. I have looked up a few resources and they have suggested to use this-
Type mk
Type: "ay'k (double quotes, <register name from a-z>, <y-yank single quote, k
You can paste those lines wherever you want with "ap
I tried... (7 Replies)
I have an if statement where I state that if there are more than one records (lines) found containing a string in a file, then it enters into a while loop to use each line for as many lines as there are and then stop.
Trouble is, I can't figure out how to move to the next instance of each line. ... (2 Replies)
Hey
I have an input file containing a list of numbers like:
U01120.CDS.1
D25328.CDS.1
X15573.CDS.1
K03515.CDS.1
L44140.CDS.10
U24183.CDS.1
M97347.CDS.1
U05259.CDS.1
And another input file containing results created on the basis of the above input:
G6PT_HUMAN U01120.CDS.1 -1.9450 3.1706... (1 Reply)
I am trying to print 1st, 2nd, 13th and 14th fields of a file of line numbers from 29 to 10029. I dont know how to put this in one code. Currently I am removing the selected lines by
awk 'NR==29,NR==10029' File1 > File2
and then doing
awk '{print $1, $2, $13, $14}' File2 > File3
Can... (3 Replies)
Hello,
I have a file, which looks like:
I want to print the row containg "PRO" in second column after comparing and finding the minimum value of fifth column present in all "PRO". and likewise for every other string present in second column.
I am using :
filename=list... (2 Replies)
Hi guys!
I'm new to scripting and I need to write a script in awk.
Here is example of file on which I'm working
ATOM 4688 HG1 PRO A 322 18.080 59.680 137.020 1.00 0.00
ATOM 4689 HG2 PRO A 322 18.850 61.220 137.010 1.00 0.00
ATOM 4690 CD ... (18 Replies)
hi Gurus,
I have a source file with more than 10 columns ( not fixed )
I want to delete all the lines on the following condition
1) where i have first column as "UPDATE PLAN ADD RATE SCHEDULE" and fourth column as null
awk '($1=="UPDATE PLAN ADD RATE SCHEDULE" && $4=="") {print $0}'... (5 Replies)
two files: one with the line number only, and the 2nd one with line number and content, as following:
line_file.txt
1
3
5
9
23
30
content_file.txt
1|we are the world|good|great
2|easily do this by highlighting you|easily do this by highlighting you|easily do this by highlighting... (2 Replies)