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Search: Posts Made By: kevintse
7,931
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!
1,902
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 $a[i] OFS} printf ORS}'...
8,021
Posted By kevintse
awk 'NR>=3 && /red/' infile
awk 'NR>=3 && /red/' infile
3,386
Posted By kevintse
perl:
perl:
1,889
Posted By kevintse
You probably need unix2dos and dos2unix. ...
You probably need unix2dos and dos2unix.
Windows uses 0x0d0a as newline, while Unix uses 0x0a.
1,349
Posted By kevintse
If you want to list all files matching the...
If you want to list all files matching the pattern under /etl/PDAC/CBA/Supplier/, use the following script:
#!/usr/bin/perl
use strict;
use warnings;
opendir(DIR, "/etl/PDAC/CBA/Supplier/") or...
9,208
Posted By kevintse
You can read multiple fields: read month file; ...
You can read multiple fields:
read month file;
May filename.txt<ENTER>;
grep "$month" "$file"
3,808
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.
...
3,808
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'
3,445
Posted By kevintse
You'll have to use backticks: ./script.sh >...
You'll have to use backticks:
./script.sh > `date +"%Y%m%d"`
1,122
Posted By kevintse
echo "DATA" | grep "^[DH]"
echo "DATA" | grep "^[DH]"
3,232
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)/{ $1=""; sub(/^[ \t]+/, "");...
1,758
Posted By kevintse
You may stick to grep and cut: echo...
You may stick to grep and cut:
echo "/home/one/two/three/" | grep -Eo '[^/]+/?$' | cut -d / -f1
Or just perl:
echo "/home/one/two/three/" | perl -pe 's|^.+?([^/]+)/?$|$1|'
884
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
7,781
Posted By kevintse

6,782
Posted By kevintse
Good idea, but this will be better. grep ", *,"...
Good idea, but this will be better.
grep ", *," infile
6,782
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=,
3,603
Posted By kevintse
try this:
try this:
69,376
Posted By kevintse
echo "Youcaneasilydothisbyhighlightingyourcode."...
echo "Youcaneasilydothisbyhighlightingyourcode." | sed 's/\(.\{3\}\)/\1 /g'
17,226
Posted By kevintse
awk -F: '{print $1}' infile
awk -F: '{print $1}' infile
4,606
Posted By kevintse
If you remove the ".*" part from the regex, that...
If you remove the ".*" part from the regex, that means you want to match a line that has only 16 characters, this simply does not match anything, so the original string is output.
...
7,409
Posted By kevintse
There are punctuations in your string, so: awk...
There are punctuations in your string, so:
awk -F"[ ,.]" '{for(i=1;i<=NF;++i) if($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...
3,421
Posted By kevintse
Or this: awk -F- '{print $1}' infile
Or this:
awk -F- '{print $1}' infile
3,186
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.
2,809
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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