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set a init file as: (So you can have a long list)

$ cat template

JAM BUTTER
BREAD CRACKER
SCOOP FORK
SPREAD SPLAT
......

for file in $(ls *.txt)
do
awk 'NR==FNR {a[$1]=$2;next} {for...

awk -F "" '{for (i=1;i<=NF;i++) if (i==106||i==157||i==237) $i="xxx"}1' OFS="" urfile

It is not solved by above code. if you have several lines, you calculate wrong.

try this:
grep -o "\." infile|wc -l
awk '{sum+=gsub(/\./,"")}END{print sum}' infile

awk -F , '! a[$1 FS $2] {b[$1]++;a[$1 FS $2]++}END {for (i in b) print i","b[i]}' infile

ls ba[aeiou]*

how about this, it is not exact for your request, but get mostly.

perl -l40pe 's/^-+/\n/' svn.log|awk -F \| '{$3=""}1'

r7351 user01 2 lines Changed paths: D /trunk/demo/proj1/.project ...

awk 'NR>2{$0="NEW" RS $0}1' saved_doc

awk 'NR==FNR{a[$1 FS $2];next} !($1 FS $2 in a)' file2 file1

sc2/10 10 . G C 50 F=5;U=4
sc2/24 24 . T G 31 F=5;U=4
sc2/11 30 . A T 60 F=5;U=4

so what's the reason to set another array b?
awk '{a[$0]++} END{for(i in a){if (a[i]==1) {print i}}}' infile

I don't review the logic with better arithmetic, I just provide the same function for shorter script as same as in your code

cat test.sh

echo $1|awk '{if ($5=="24") print $1,$2,$3, "0/24"
...

awk '{printf (/^\|/)?$0:RS $0}' infile

#!/bin/bash
# Put Values in an myarrayname and read them back
file="file.txt" # input filename

while read line ;do
wardevent=${line:3:2} # find the wardells...

awk -F "[=,]" '{delete a
printf $1 "="
for (i=2;i<=NF;i++) a[$i]
for (i in a) printf i ","
printf RS}' infile |sed 's/,$//'

recommend to move below lines to BEGIN{} part in awk, which will avoid to gsub on each line again.

gsub ( "-", X, ST )
gsub ( "-", X, EN )

awk '{print $1*1.2}' datafile.txt

this command is so dangerous, if string is not defined correctly (empty), the whole three folders will be deleted directly without any prompt by "rm -rf"

---------- Post updated at 01:51 PM...

could you please show me this command and its ouput?

echo $LANG

awk '{a[$NF]=a[$NF] FS $1}END{for (i in a) print "Assigned Values: " ,a[i] |mailx -s "Group info" i}' infile

see the explanation:
https://www.unix.com/302678079-post2.html

I guess you use the du command with -h option. Try -k

du -sk *

But what's the reason to put file1 first?

awk 'NR==FNR{ if ($2~/\$/) {sub(/\$/,"",$2); if (/paid/) {a[$1]+=$2} ;if (/due/) a[$1]-=$2}}
NR>FNR{printf "%s balance:$%.2f \n",$1,a[$1]+0}' file2 file1

CoCo balance:$-10.65
Hiel...

How about it?
awk '{sub(/\$/,"",$2)}/paid/{a[$1]+=$2}/due/{a[$1]-=$2}
END{for (i in a) printf "%s balance:$%.2f \n",i,a[i]}' infile

CoCo balance:$5.40
Euda balance:$45.00

awk '/HANDVEL/{print;next}{for (i=1;i<=NF;i=i+2) print $i,$(i+1)}' infile

$ awk '{for (i=1;i<=NF;i++) if (i<=NR) printf $i FS}' infile
1 0 8 9 2 6 6 8 9 6 7 9 4 9 9 9 0 3 4 7 9

$ awk '{for (i=1;i<=NF;i++) if (i<NR) printf $i FS}' infile
0 9 2 6 8 9 7 9 4 9 9 0 3 4 7