nl
Linux Command – nl ใช้ในการแสดงเลขที่บรรทัดของข้อมูลใน file
คำสั่ง
ตัวอย่าง file1
$ cat file1 aaaaaaaaaaa bbbbbbbbbbb ccccccccccc ddddddddddd eeeeeeeeeee fffffffffff ggggggggggg
nl <file>
$ nl file1 1 aaaaaaaaaaa 2 bbbbbbbbbbb 3 ccccccccccc 4 ddddddddddd 5 eeeeeeeeeee 6 fffffffffff 7 ggggggggggg
โครงสร้างคำสั่ง
nl [OPTION]... [FILE]...
รายละเอียด
เป็นคำสั่งที่ใช้ในการแสดงเลขที่บรรทัดของข้อมูลใน file
Option
Mandatory arguments to long options are mandatory for short options too. -b, --body-numbering=STYLE use STYLE for numbering body lines -d, --section-delimiter=CC use CC for separating logical pages -f, --footer-numbering=STYLE use STYLE for numbering footer lines -h, --header-numbering=STYLE use STYLE for numbering header lines -i, --line-increment=NUMBER line number increment at each line -l, --join-blank-lines=NUMBER group of NUMBER empty lines counted as one -n, --number-format=FORMAT insert line numbers according to FORMAT -p, --no-renumber do not reset line numbers at logical pages -s, --number-separator=STRING add STRING after (possible) line number -v, --starting-line-number=NUMBER first line number on each logical page -w, --number-width=NUMBER use NUMBER columns for line numbers --help display this help and exit --version output version information and exit By default, selects -v1 -i1 -l1 -sTAB -w6 -nrn -hn -bt -fn. CC are two delimiter characters for separating logical pages, a missing second character implies :. Type \\ for \. STYLE is one of: a number all lines t number only nonempty lines n number no lines pBRE number only lines that contain a match for the basic regular expression, BRE FORMAT is one of: ln left justified, no leading zeros rn right justified, no leading zeros rz right justified, leading zeros
กลุ่มคำสั่ง
wc
Reference:
Author: Suphakit Annoppornchai
Credit: https://saixiii.com
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