echo is too slow. HELP with Awk Post: 302117325

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk to echo ???

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. 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...

3. Shell Programming and Scripting

The builtin split function in AWK is too slow

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...

4. Shell Programming and Scripting

cut, sed, awk too slow to retrieve line - other options?

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...

5. Shell Programming and Scripting

Improve performance of echo |awk

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...

6. Shell Programming and Scripting

Making a faster alternative to a slow awk command

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...

7. Shell Programming and Scripting

Problem with writing to output - awk, echo

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...

8. Shell Programming and Scripting

Combining echo and awk

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.

9. Shell Programming and Scripting

Echo awk output from its variable

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...

10. OS X (Apple)

Slow FFT in ksh93 and awk.

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...

LEARN ABOUT SUNOS

ucblinks

ucblinks(1B)					     SunOS/BSD Compatibility Package Commands					      ucblinks(1B)

NAME

       ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices

SYNOPSIS

       /usr/ucb/ucblinks [-e rulebase] [-r rootdir]

DESCRIPTION

       ucblinks  creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
       ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.

       ucblinks does not remove unneeded compatibility links; these must be removed by hand.

       ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been  created,
       since the reconfiguration may have resulted in more compatibility names being needed.

       In  releases prior to SunOS 5.4, ucblinks used a  nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses  nawk
       for the default operation, although  nawk rule-bases can still be specifed with the -e option.  The  nawk rule-base equivalent to the SunOS
       5.4 default operation can be found in /usr/ucblib/ucblinks.awk.

OPTIONS

       -e rulebase     Specify rulebase as the file containing nawk(1) pattern-action statements.

       -r rootdir      Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.

FILES

       /usr/ucblib/ucblinks.awk        sample rule-base for compatibility links

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)

SunOS 5.10							    13 Apr 1994 						      ucblinks(1B)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk to echo ???

Discussion started by: jisha

2. Shell Programming and Scripting

Using echo in AWK

Discussion started by: jermaine4ever

3. Shell Programming and Scripting

The builtin split function in AWK is too slow

Discussion started by: kevintse

4. Shell Programming and Scripting

cut, sed, awk too slow to retrieve line - other options?

Discussion started by: fzd