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Search: Posts Made By: kevintse
8,004
Posted By kevintse
Cool, you just changed the output record...
Cool, you just changed the output record separator accordingly.
I am just using the tools, while you are playing with the tools.
That was amazing!
2,036
Posted By kevintse
awk 'BEGIN{OFS="\t"} NR == FNR{a[$0]; next}...
awk 'BEGIN{OFS="\t"}
NR == FNR{a[$0]; next}
FNR == 1{ for(i=1;i<=NF;++i){if($i in a){a[$i]=i}} for(e in a){printf e OFS} printf ORS; next}
{for(i in a){printf $a[i] OFS} printf ORS}'...
8,137
Posted By kevintse
awk 'NR>=3 && /red/' infile
awk 'NR>=3 && /red/' infile
3,414
Posted By kevintse
perl:
perl:
1,918
Posted By kevintse
You probably need unix2dos and dos2unix. ...
You probably need unix2dos and dos2unix.
Windows uses 0x0d0a as newline, while Unix uses 0x0a.
1,370
Posted By kevintse
If you want to list all files matching the...
If you want to list all files matching the pattern under /etl/PDAC/CBA/Supplier/, use the following script:
#!/usr/bin/perl
use strict;
use warnings;
opendir(DIR, "/etl/PDAC/CBA/Supplier/") or...
9,479
Posted By kevintse
You can read multiple fields: read month file; ...
You can read multiple fields:
read month file;
May filename.txt<ENTER>;
grep "$month" "$file"
3,873
Posted By kevintse
OK, I guess you still have more than 2 identical...
OK, I guess you still have more than 2 identical consecutive words spanning multiple lines, and you have to reserve all the newline characters, this can be a challenge, at least with SED.
...
3,873
Posted By kevintse
Fixed, I forgot to add the word boundary(marked...
Fixed, I forgot to add the word boundary(marked as red) for the identical consecutive word:

sed ':f;N;$!bf; s/\b\(.*\)\n\1\b/\1\n/g; s/\b\(.*\)\b\1\b/\1/g'
3,500
Posted By kevintse
You'll have to use backticks: ./script.sh >...
You'll have to use backticks:
./script.sh > `date +"%Y%m%d"`
1,133
Posted By kevintse
echo "DATA" | grep "^[DH]"
echo "DATA" | grep "^[DH]"
3,308
Posted By kevintse
pbillast's solution won't work as expected when...
pbillast's solution won't work as expected when Name or Country contains more than one word, the following code does:
awk '/^(Name|Age|Country)/{ $1=""; sub(/^[ \t]+/, "");...
1,817
Posted By kevintse
You may stick to grep and cut: echo...
You may stick to grep and cut:
echo "/home/one/two/three/" | grep -Eo '[^/]+/?$' | cut -d / -f1
Or just perl:
echo "/home/one/two/three/" | perl -pe 's|^.+?([^/]+)/?$|$1|'
891
Posted By kevintse
If AWK is an option: gawk 'FNR==NR{a[$0]; next}...
If AWK is an option:
gawk 'FNR==NR{a[$0]; next} {if($0 in a){delete a[$0]}else{++c}} END { print "Count of difference: ", length(a)+c }' data.txt data2.txt
7,918
Posted By kevintse

6,834
Posted By kevintse
Good idea, but this will be better. grep ", *,"...
Good idea, but this will be better.
grep ", *," infile
6,834
Posted By kevintse
awk -F, ' {for(i=1;i<=NF;++i) { s=$i; gsub(/ +/,...
awk -F, ' {for(i=1;i<=NF;++i) { s=$i; gsub(/ +/, "", s); if(s=="") { print; break; }} } ' infile OFS=,
3,660
Posted By kevintse
try this:
try this:
69,537
Posted By kevintse
echo "Youcaneasilydothisbyhighlightingyourcode."...
echo "Youcaneasilydothisbyhighlightingyourcode." | sed 's/\(.\{3\}\)/\1 /g'
17,303
Posted By kevintse
awk -F: '{print $1}' infile
awk -F: '{print $1}' infile
4,653
Posted By kevintse
If you remove the ".*" part from the regex, that...
If you remove the ".*" part from the regex, that means you want to match a line that has only 16 characters, this simply does not match anything, so the original string is output.
...
7,454
Posted By kevintse
There are punctuations in your string, so: awk...
There are punctuations in your string, so:
awk -F"[ ,.]" '{for(i=1;i<=NF;++i) if($i!="")a[$i]} END {for(s in a) print s}' infile
If you insist on using FS, try this, it has the same output as the...
3,468
Posted By kevintse
Or this: awk -F- '{print $1}' infile
Or this:
awk -F- '{print $1}' infile
3,362
Posted By kevintse
try this: awk ' { ++a[$0] } END { for(s in a) {...
try this:
awk ' { ++a[$0] } END { for(s in a) { for(i=1;i<=a[s];++i) { print s, i, a[s] } } } ' inputfile

Note: your input data is assumed to be sorted.
2,837
Posted By kevintse
The AWK way: awk '/^[0-9]+/ { print "63"$0;...
The AWK way:
awk '/^[0-9]+/ { print "63"$0; next } { print }' infile
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