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Search: Posts Made By: kevintse
7,943
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!
1,927
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 $a[i] OFS} printf ORS}'...
8,036
Posted By kevintse
awk 'NR>=3 && /red/' infile
awk 'NR>=3 && /red/' infile
3,392
Posted By kevintse
perl:
perl:
1,894
Posted By kevintse
You probably need unix2dos and dos2unix. ...
You probably need unix2dos and dos2unix.
Windows uses 0x0d0a as newline, while Unix uses 0x0a.
1,353
Posted By kevintse
If you want to list all files matching the...
If you want to list all files matching the pattern under /etl/PDAC/CBA/Supplier/, use the following script:
#!/usr/bin/perl
use strict;
use warnings;
opendir(DIR, "/etl/PDAC/CBA/Supplier/") or...
9,242
Posted By kevintse
You can read multiple fields: read month file; ...
You can read multiple fields:
read month file;
May filename.txt<ENTER>;
grep "$month" "$file"
3,820
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.
...
3,820
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'
3,459
Posted By kevintse
You'll have to use backticks: ./script.sh >...
You'll have to use backticks:
./script.sh > `date +"%Y%m%d"`
1,125
Posted By kevintse
echo "DATA" | grep "^[DH]"
echo "DATA" | grep "^[DH]"
1,773
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|'
3,256
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]+/, "");...
888
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
7,800
Posted By kevintse

6,794
Posted By kevintse
Good idea, but this will be better. grep ", *,"...
Good idea, but this will be better.
grep ", *," infile
6,794
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=,
3,609
Posted By kevintse
try this:
try this:
69,405
Posted By kevintse
echo "Youcaneasilydothisbyhighlightingyourcode."...
echo "Youcaneasilydothisbyhighlightingyourcode." | sed 's/\(.\{3\}\)/\1 /g'
4,616
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.
...
17,237
Posted By kevintse
awk -F: '{print $1}' infile
awk -F: '{print $1}' infile
7,431
Posted By kevintse
There are punctuations in your string, so: awk...
There are punctuations in your string, so:
awk -F"[ ,.]" '{for(i=1;i<=NF;++i) if($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...
3,433
Posted By kevintse
Or this: awk -F- '{print $1}' infile
Or this:
awk -F- '{print $1}' infile
3,234
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.
2,813
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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