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28,708
Posted By home_king
Maybe I catch your word:-) cat file.rpt |...
Maybe I catch your word:-)

cat file.rpt | awk '{dl=NF-1;sum[$dl]+=$NF}END{for(item in sum)print item,sum[item]}'
16,195
Posted By home_king
"Process the file line by line" is just the...
"Process the file line by line" is just the function of awk!
I think you must go over it.

FS="\n", such statement is used just when you want to process file paragraph by paragraph. It may...
6,359
Posted By home_king
Sorry, I couldn't catch your word. Maybe...
Sorry, I couldn't catch your word.
Maybe explain it in detail please?
34,549
Posted By home_king
Re: Simple arithmetic operation
You may go over bash's syntax.
1. It is better to use $() instead of `` in bash, a modern shell.
2. The syntax of Arithmetic expression in Bash: $(())
y=$(($x / 7))
3. No "printf" command ...
16,802
Posted By home_king
It is never said that "daemon+wait" is the only...
It is never said that "daemon+wait" is the only way to make "Co-process" in Bash, but the typical way.
What's more, conceptly, "named pipe" is different from "Co-process". The former depends some...
16,802
Posted By home_king
Well, it's the typical way to make "co-process"...
Well, it's the typical way to make "co-process" in Bash, isn't it? Maybe ksh would be better. But I just know Bash. ;)
2,456
Posted By home_king
Do you mean files with suffix name .l ? Here...
Do you mean files with suffix name .l ?

Here is bash's implementation(Csh is similar to it):

#!/bin/sh
while read -a lfiles -p "Enter files to process:"; do
for file in "${lfiles[@]}";do...
16,802
Posted By home_king
Bash "Co-process" example
It copys one specified file to multiple "unique"(filter those different pathnames which in fact point to the same physical path) paths with parallelism in bash. In contrast to sequential copy...
18,957
Posted By home_king
The complication of the pattern expression is...
The complication of the pattern expression is determined by the situation.
There exists more possibility of modification of it. :-)
18,957
Posted By home_king
sed...
sed 's@<\([^<>][^<>]*\)>\([^<>]*\)</\1>@\2@g'
90,676
Posted By home_king
Just try Gawk! It performs in superior to other...
Just try Gawk!
It performs in superior to other awk's clones.
90,676
Posted By home_king
expr $var1 + $var2
expr $var1 + $var2
11
awk
2,629
Posted By home_king
Re: didn't work
Remember, variable's reference can't be prefixed with $ unless they are position variables like $0~$NF.
Ygor is right. However, you didn't modify your variable reference, so you failed.
Just skip...
11
awk
2,629
Posted By home_king
Just do it when you want to use these external...
Just do it when you want to use these external variables in BEGIN procedure too.
5,595
Posted By home_king
Well, the Bash of modern versions(>=2.0) provides...
Well, the Bash of modern versions(>=2.0) provides a featured concept, called Process Substitution.
However, it works like chaos and functions limitedly.
Anyone can give some advanced way to make...
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