hexdump, logger, netstat, n, nm, pdfgrep: move to common (#6549)

pages.zh/common/hexdump.md

@@ -1,6 +1,7 @@
 # hexdump
 
-> 一个 ASCII、十进制、十六进制、八进制转换查看工具。
+> 一个 ASCII，十进制，十六进制，八进制转换查看工具。
+> 更多信息：<https://manned.org/hexdump>.
 
 - 打印文件的十六进制表示形式：
 

pages/osx/hexdump.md

@@ -1,16 +0,0 @@
-# hexdump
-
-> An ASCII, decimal, hexadecimal, octal dump.
-> More information: <https://www.unix.com/man-page/osx/1/HEXDUMP>.
-
-- Print the hexadecimal representation of a file:
-
-`hexdump {{file}}`
-
-- Display the input offset in hexadecimal and its ASCII representation in two columns:
-
-`hexdump -C {{file}}`
-
-- Display the hexadecimal representation of a file, but interpret only n bytes of the input:
-
-`hexdump -C -n{{number_of_bytes}} {{file}}`

pages/osx/logger.md

@@ -1,23 +0,0 @@
-# logger
-
-> Add messages to syslog (/var/log/syslog).
-
-- Log a message to syslog:
-
-`logger {{message}}`
-
-- Take input from stdin and log to syslog:
-
-`echo {{log_entry}} | logger`
-
-- Send the output to a remote syslog server running at a given port. Default port is 514:
-
-`echo {{log_entry}} | logger -h {{hostname}} -P {{port}}`
-
-- Use a specific tag for every line logged. Default is the name of logged in user:
-
-`echo {{log_entry}} | logger -t {{tag}}`
-
-- Log messages with a given priority. Default is `user.notice`. See `man logger` for all priority options:
-
-`echo {{log_entry}} | logger -p {{user.warning}}`

pages/osx/n.md

@@ -1,23 +0,0 @@
-# n
-
-> Tool to manage multiple node versions.
-
-- Install a given version of node. If the version is already installed, it will be activated:
-
-`n {{version}}`
-
-- Display installed versions and interactively activate one of them:
-
-`n`
-
-- Remove a version:
-
-`n rm {{version}}`
-
-- Execute a file with a given version:
-
-`n use {{version}} {{file.js}}`
-
-- Output binary path for a version:
-
-`n bin {{version}}`

pages/osx/netstat.md

@@ -1,24 +0,0 @@
-# netstat
-
-> Displays network-related information such as open connections, open socket ports, etc.
-> More information: <https://www.unix.com/man-page/osx/1/netstat>.
-
-- List all ports:
-
-`netstat -a`
-
-- List all listening ports:
-
-`netstat -l`
-
-- List listening TCP ports:
-
-`netstat -t`
-
-- Display PID and program names for a specific protocol:
-
-`netstat -p {{protocol}}`
-
-- Print the routing table:
-
-`netstat -nr`

pages/osx/nm.md

@@ -1,19 +0,0 @@
-# nm
-
-> List symbol names in object files.
-
-- List global (extern) functions in a file (prefixed with T):
-
-`nm -g {{file.o}}`
-
-- List only undefined symbols in a file:
-
-`nm -u {{file.o}}`
-
-- List all symbols, even debugging symbols:
-
-`nm -a {{file.o}}`
-
-- Demangle C++ symbols (make them readable):
-
-`nm -demangle {{file.o}}`

pages/osx/pdfgrep.md

@@ -1,23 +0,0 @@
-# pdfgrep
-
-> Search text in PDF files.
-
-- Find lines that match pattern in a PDF:
-
-`pdfgrep {{pattern}} {{file.pdf}}`
-
-- Include file name and page number for each matched line:
-
-`pdfgrep --with-filename --page-number {{pattern}} {{file.pdf}}`
-
-- Do a case-insensitive search for lines that begin with "foo" and return the first 3 matches:
-
-`pdfgrep --max-count {{3}} --ignore-case {{'^foo'}} {{file.pdf}}`
-
-- Find pattern in files with a `.pdf` extension in the current directory recursively:
-
-`pdfgrep --recursive {{pattern}}`
-
-- Find pattern on files that match a specific glob in the current directory recursively:
-
-`pdfgrep --recursive --include {{'*book.pdf'}} {{pattern}}`