On 2020-08-24 20:07, ToddAndMargo via users wrote:
On 2020-08-24 02:21, Patrick O'Callaghan wrote:
On Sun, 2020-08-23 at 16:01 -0700, ToddAndMargo via users wrote:
On 2020-08-23 02:53, Patrick O'Callaghan wrote:
On Sat, 2020-08-22 at 18:21 -0700, ToddAndMargo via users wrote:
3) Why do you use "sed -n 1,1p" in GetGW?
Because I only wanted the first line. Sometimes
with that commend you get two lines back. I am
covering all my bases.
head -1
poc
Interesting. It will print the first lines or the last lines.
Thank you!
Sed allows me to pick which ones I want.
'head' prints the first N lines (10 by default). See also 'tail'.
You said you wanted the first line, so 'head' is the obvious command,
but as with most things in UNIX/Linux, there is more than one way of
doing it.
poc
Some Raku trivia. Print lines 3, 2, 5 in that order
$ cat Lines.txt
Line 0
Line 1
Line 2
Line 3
Line 4
Line 5
Line 6
Line 7
Line 8
Line 9
Line 10
Line 11
$ cat Lines.txt | raku -e ' my @x=$*IN.lines; for @x[3,2,5] {say $_};'
Line 3
Line 2
Line 5
And even quicker!
$ cat Lines.txt | raku -e '.say for lines()[3,2,5]'
Line 3
Line 2
Line 5
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