- no formatting;
- stackoverflow.com/questions/2614764/how-to-create-a-hex-dump-of-file-containing-only-the-hex-characters-without-spac
- unix.stackexchange.com/questions/10826/shell-how-to-read-the-bytes-of-a-binary-file-and-print-as-hexadecimal/758531#758531
- stackoverflow.com/questions/2003803/show-hexadecimal-numbers-of-a-file/77262369#77262369
- stackoverflow.com/questions/9515007/linux-script-to-convert-byte-data-into-a-hex-string/77262375#77262375
The author Ole Tange answers every question about it on Stack Exchange. What a legend!
This program makes you respect GNU make a bit more. Good old make with
-j
can not only parallelize, but also take in account a dependency graph.Some examples under:
man parallel_exampes
To get the input argument explicitly job number use the magic string sample output:
{}
, e.g.:printf 'a\nb\nc\n' | parallel echo '{}'
a
b
c
To get the job number use sample output:
{#}
as in:printf 'a\nb\nc\n' | parallel echo '{} {#}'
a 1
b 2
c 3
c 3
{%}
contains which thread the job running in, e.g. if we limit it to 2
threads with -j2
:printf 'a\nb\nc\nd\n' | parallel -j2 echo '{} {#} {%}'
a 1 1
b 2 1
c 3 2
d 4 1
%
symbol in many programming languages such as C.To pass multiple CLI argments per command you can use sample output:
-X
e.g.:printf 'a\nb\nc\nd\n' | parallel -j2 -X echo '{} {#} {%}'
a b 1 1
c d 2 2
Way too few people know about this. Spread the word.