awk NR==FNR output control Post: 302532028

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk: different between NR and FNR

As I know: FNR: The ordinal number of the current record in the current file. NR: The ordinal number of the current record from the start of input. I don't understand really differency between NR and FNR. Who can explain it for me? And give me an example. Thanks

2. Shell Programming and Scripting

awk NR==FNR compare 2 files produce a 3rd

hi, i have two files, both with 3 columns, the 3rd column has common values between the two files and i want to produce a 3rd file with 4 columns. file 1 a, ,b c file 2 a, b ,d I want to compare the 3rd value and if a match print to file 3 with the 3 columns from the first file...

3. Shell Programming and Scripting

error "awk: (FILENAME=- FNR=23) fatal: division by zero attempted"

Hi , I have file : after i run this command : there are error can we print blank line if output error ?? thanks.. ^^

4. UNIX for Dummies Questions & Answers

Multiple Column print after lookup using NR==FNR (awk)

foo.txt FAMID IID AFF SEX Group AgeCat Dis1 Dis2 Dis3 Dis4 Dis5 Dis6 Dis6 AMD0001 Mayo_49542 1 2 AMD 8 1 1 1 1 1 1 1 AMD0002 Mayo_49606 1 1 AMD 3 1 1 1 1 ...

5. Shell Programming and Scripting

Awk FNR==NR question

awk -F'' 'FNR==NR {a=$2; next} {$1=a} 1' $useralias ${entries} >> ${entries}_2 Hi, Is there anyway to alter this command so that if it does not find a match it will just leave the line alone instead of replacing what it doesn't find with a blank space?

6. Shell Programming and Scripting

How to control a null output in EMC storage?

I dont want to print the output in a EMC VMAX storage if it says "The specified device was not found", however it is not letting me do it. I am trying to run this command: symaccess -sid xxxx list -type storage -devs 1234 output: The specified device was not found I just want the script...

7. Shell Programming and Scripting

Tip: alternative for NR==FNR in awk

Example: $ cat file1 2 3$ cat file2 1 2 3 4 5 6The following awk script works like a charm, NR==FNR is true for file1, the remainder runs for file2: awk ' NR==FNR {A; next} ($1 in A) ' file1 file2 2 3Now have an empty file1: >file1and run the awk script again. The result is empty...

8. Shell Programming and Scripting

awk --> selective printout with FNR

Hi everybody! need some awk-support. i want a line-selective printout of a file. wat i normally will do with ... awk ' FNR==8' sample.txt But now i need the data from line 8, 10 and the following data from line13 to 250 wich is not end of the file. I tried allready to combine it but without...

9. Shell Programming and Scripting

Explanation of FNR in this awk script

To merge mutiple *.tab files as: file1.tab rs1 A A rs2 A A rs3 C C rs4 C Cfile2.ind rs1 T T rs2 T T rs3 G G rs4 G Gand file3.tab rs1 B B rs2 B B rs3 L L rs4 L LOutput： file1.tab file2.tab file3.tab AA TT BB AA TT BB CC GG LL CC GG ...

10. Shell Programming and Scripting

Awk: Assigning a variable to be the value of FNR at a certain line

Sorry for the probably strangely worded title but I don't really know how else to put it. Background context: Post processing LAMMPS simulation data. tl;dr: I'm making two spheres collide, every defined timestep the simulation outputs a bunch of data including total energy of the particles,...

LEARN ABOUT LINUX

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk: different between NR and FNR

Discussion started by: anhtt

2. Shell Programming and Scripting

awk NR==FNR compare 2 files produce a 3rd

Discussion started by: borderblaster

3. Shell Programming and Scripting

error "awk: (FILENAME=- FNR=23) fatal: division by zero attempted"

Discussion started by: justbow

4. UNIX for Dummies Questions & Answers

Multiple Column print after lookup using NR==FNR (awk)

Discussion started by: genehunter