🖥️head
➡️This is a command-line reference manual for commands and command combinations that you don’t use often enough to remember it. This cheatsheet explains the head command with important options and switches using examples.
2 minute read
▁ ▂ ▃ ▄ ꧁ 🔴☠ COMMANDLINE-KUNGFU WITH CHEATSHEETS ☠🔴꧂▅ ▃ ▂ ▁
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# ╚═╝ ╚═╝╚══════╝╚═╝ ╚═╝╚═════╝
# To show the first 10 lines of file
head file
# To show the first N lines of file
head -n N file
# To show the first N bytes of file
head -c N file
head -1 data.csv | tr , $'\n' | nl
# Print the number and column name to help write awk expressions.
(head -5; tail -5) < log
# Show the first and last 5 lines of the file 'log'.
head -1 data.csv | tr , $'\n' | nl
# Print the number and column name to help write awk expressions.
# Loganalyse
head -n 3 access.log | awk '{ print $7 }'
head -n 3 access.log | awk '{ print $7 }' | awk -F '?' '{ print $1 }'
head -n 3 access.log | awk '{ print $7 }' | awk -F '?' '{ print $1 }'
head -n 3 access.log | awk '{ print $7 }' | awk -F '?' '{ print $1 }' | sed 's|http\(s\)\*://||'
head -n 3 access.log | awk '{ print $7 }' | awk -F '?' '{ print $1 }' | sed 's|http\(s\)\*://||' | awk -F '/' '{ print $1 }' | awk -F ':' '{ print $1}'
cat access.log | awk '{ print $7 }' | awk -F '?' '{ print $1 }' | sed 's|http\(s\)\*://||' | awk -F '/' '{ print $1 }' | awk -F ':' '{ print $1}' | usort
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# CMD HEAD #
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Cheatsheets are an excellent complement to other information sources like Linux man-pages, Linux help, or How-To’s and tutorials, as they provide compact and easily accessible information. While man-pages and detailed tutorials often contain comprehensive explanations and extensive guides, cheatsheets summarize the most important options forthe command head in a clear format. This allows users to quickly access the needed information for head without having to sift through lengthy texts. Especially in stressful situations or for recurring tasks, cheatsheets for head are a valuable resource to work efficiently and purposefully.
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█║▌│║█║▌★ KALI ★ PARROT ★ DEBIAN 🔴 PENTESTING ★ HACKING ★ █║▌│║█║▌
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█║▌│║█║▌ WITH COMMANDLINE-KUNGFU POWER █║▌│║█║▌
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