Thread: Adding SAC headers from .txt file

Joel,

The script works for me in MAC OSX, it assume sac is in your PATH

Here, t1_t2.txt is file contains

N.TROH.U.D.1.SAC 5.5424 6.4533

N.TROH.U.D.2.SAC 3.2432 5.5433

N.TROH.U.B.3.SAC 7.5345 9.5345

N.TROH.U.C.4.SAC 5.3424 3.4234

--------------------------

#!/bin/bash


while read -r LINE

do

ROW="$LINE"

FILE=`echo $ROW | awk '{print $1}'`

T1=`echo $ROW | awk '{print $2}'`

T2=`echo $ROW | awk '{print $3}'`

printf "r $FILE\nch T1 $T1 T2 $T2\nwh\nq\n" | sac

done < t1_t2.txt
----------------------------

HTH,

Milton



************************************
Milton P. PLASENCIA LINARES

Centro di Ricerche Sismologiche (CRS)
OGS - Istituto Nazionale di Oceanografia e di Geofisica Sperimentale

Borgo Grotta Gigante 42/C
(34010) Sgonico - Trieste - Italia
Tel: +39 040 2140 156 (Udine)
Tel: +39 040 2140 256 (Trieste)
Cel.: +39 331 6481 935

E-mail: mplasencia<at>inogs.it
GPG key: 22FCFFA8

ASAIN (Antarctic Seismographic Argentinean Italian Network)
*********************************

On 16 October 2017 at 17:15, joel.lowe.14<at>ucl.ac.uk <joel.lowe.14<at>ucl.ac.uk>
wrote:

Hello
I basically want to add the correct SAC header from .txt file to the
corresponding .SAC file

I have .SAC file which are named as followed;
N.TROH.U.D.1.SAC
N.TROH.U.D.2.SAC
N.TROH.U.B.3.SAC
N.TROH.U.C.4.SAC
and so on....
I also have a .txt called TROH_T1_T2.txt which is set-out as followed.
N.TROH.U.D.1.SAC 5.5424 6.4533
N.TROH.U.D.2.SAC 3.2432 5.5433
N.TROH.U.B.3.SAC 7.5345 9.5345
N.TROH.U.C.4.SAC 5.3424 3.4234
and so on .....

what i want to do is. If the file name matches $1 (column 1) in
TROH_T1_T2.txt input the value from the same row but different column in to
a SAC command.


I have been trying with not much success.

#!/bin/bash

for file in /Documents/EarthquakeScaling/Testing/*.SAC;
do


awk '$2 ~ /$file/ {print $1 $2 $3 $4}' /Documents/EarthquakeScaling/KKWH_A_T1_T2.txt

temp_file.txt

handpick_variable=$(awk 'FNR==1 {print $2}' temp_file.txt) ;


SAC <<EOF
read $file
CHNHDR T1 handpick_variable
w $file.new_test
quit

EOF

done

Any help on how to add the SAC header from a .txt to the correct .SAC file
will be extremely helpful.

Thanks

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