ระบบลินุกซ์หัวคำสั่ง
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N
# SYNTAX
# head [options] [file_name(s)]
# OPTIONS
# -n | N, prints out the furst N lines of the file(s)
# -q, doesn't print out the file headers
# -v, always prints out the file headers
# EXAMPLE
head -n 7 file.txt
head -q -n 5 file1.txt file2.txt
# CREDIT
# https://www.freecodecamp.org/news/bash-commands-bash-ls-bash-head-bash-mv-and-bash-cat-explained-with-examples/N
With the flag -n | N, the head command prints out the first N lines of file(s)
head -n 7 file.txt #Prints first 7 lines of file.txtหน้าคล้ายกัน
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