CODEWITHSUNDEEP
linuxshellawk
Khana
Khana

Reputation: 1

passing parameter from shell script to awk

I want to split my text file by line count

ex

GenTextFile.txt have 3000 line I want split to

GenText_Output_1.txt >> 1000 line (line 1 - 1000)

GenText_Output_2.txt >> 1000 line (line 1001 - 2000)

GenText_Output_3.txt >> 1000 line (line 2001 - 3000)

get 3 parameter input from console are input name, output name, line count to split

but when I execute, It have a problem

/devhome/See/Split_file > ./shell_call_awk.sh GenTextFile.txt GenText_Output  1000
awk: syntax error near line 1
awk: bailing out near line 1
awk: can't open in_name

Am I doing something wrong?

-- Here my code --

#!/bin/ksh

#echo "input name : $1"
#echo "output name : $2"
#echo "line split : $3"

input_name=$1
output_name=$2
line_split=$3

awk -v "in_name=$input_name" -v "out_name=$output_name" -v "line=$line_split"
awk 'NR%line==1{x=++i;}{print > out_name"_"x".txt"}' in_name

exit 1;

Thanks.

Upvotes: 0

Views: 4305

Answers (2)

Khana
Khana

Reputation: 1

I try to follow, but the problem persists.

awk: syntax error near line 1.
awk: bailing out near line 1.

And I was found a solution here

Solaris is well known for the fact that the some commands under /bin /usr/bin are not POSIX compliant. Instead they have additional compliant versions under /usr/xpg4 and similar hierarchies.

Thus, under Solaris you can use just:

/usr/xpg4/bin/awk -v NAME=MACHINE '$1 == NAME'  /etc/hosts 

Under Solaris 10 this works.

When I use the command man awk, I found that I was running SunOS 5.9.

Then I replace awk with usr/xpg4/bin/awk

It worked!

@Barmar Thank you very much for the advice about awk command line.

-- This is my code --

input_name=$1
output_name=$2
line_split=$3

/usr/xpg4/bin/awk -v "out_name=$output_name" -v "line=$line_split" 'NR%line==1{x=++i;}{print > out_name""x".txt"}' ${input_name}

Upvotes: 0

Barmar
Barmar

Reputation: 780974

You need to do it in just one awk command, not two separate commands. And the input file doesn't need to be an awk variable, it's just a command line argument.

awk -v "out_name=$output_name" -v "line=$line_split" 'NR%line==1{x=++i;}{print > (out_name"_"x".txt")}' "$input_name"

You can also use the split command (this requires the version from GNU coreutils):

split --numeric-suffixes --lines=$line_split "$input_name" "$output_name"_

Upvotes: 3

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