Update cheatsheets

netbsd/cal

@@ -0,0 +1,41 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# cal
+
+> Display a calendar.
+> More information: <https://man.freebsd.org/cgi/man.cgi?cal>.
+
+- Display a calendar for the current month:
+
+`cal`
+
+- Display a calendar for a specific year:
+
+`cal {{year}}`
+
+- Display a calendar for a specific month and year:
+
+`cal {{month}} {{year}}`
+
+- Display the whole calendar for the current year using [j]ulian days (one-based, numbered from January 1):
+
+`cal -y -j`
+
+- [h]ighlight today and display [3] months spanning the date:
+
+`cal -h -3 {{month}} {{year}}`
+
+- Display the 2 months [B]efore and 3 [A]fter a specific [m]onth of the current year:
+
+`cal -A 3 -B 2 {{month}}`
+
+- Display a specific number of months before and after ([C]ontext) the specified month:
+
+`cal -C {{months}} {{month}}`
+
+- Specify the starting [d]ay of the week (0: Sunday, 1: Monday, ..., 6: Saturday):
+
+`cal -d {{0..6}}`

netbsd/chfn

@@ -0,0 +1,12 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# chfn
+
+> This command is an alias of `chpass`.
+
+- View documentation for the original command:
+
+`tldr chpass`

netbsd/chpass

@@ -0,0 +1,34 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# chpass
+
+> Add or change user database information, including login shell and password.
+> See also: `passwd`.
+> More information: <https://man.openbsd.org/chsh>.
+
+- Set a specific login shell for the current user interactively:
+
+`su -c chpass`
+
+- Set a specific login [s]hell for the current user:
+
+`chpass -s {{path/to/shell}}`
+
+- Set a login [s]hell for a specific user:
+
+`chpass chsh -s {{path/to/shell}} {{username}}`
+
+- Specify a user database entry in the `passwd` file format:
+
+`su -c 'chpass -a {{username:encrypted_password:uid:gid:...}} -s {{path/to/file}}' {{username}}`
+
+- Only update the [l]ocal password file:
+
+`su -c 'chpass -l -s {{path/to/shell}}' {{username}}`
+
+- Forcedly change the database [y]P password database entry:
+
+`su -c 'chpass -y -s {{path/to/shell}}' {{username}}`

netbsd/chsh

@@ -0,0 +1,12 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# chsh
+
+> This command is an alias of `chpass`.
+
+- View documentation for the original command:
+
+`tldr chpass`

netbsd/df

@@ -0,0 +1,37 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# df
+
+> Display an overview of the filesystem disk space usage.
+> More information: <https://man.netbsd.org/NetBSD-9.3/df.1>.
+
+- Display all filesystems and their disk usage using 512-byte units:
+
+`df`
+
+- Use [h]uman-readable units (based on powers of 1024):
+
+`df -h`
+
+- Display all the fields of the structure(s) returned by `statvfs`:
+
+`df -G`
+
+- Display the filesystem and its disk usage containing the given file or directory:
+
+`df {{path/to/file_or_directory}}`
+
+- Include statistics on the number of free and used [i]nodes:
+
+`df -i`
+
+- Use 1024-byte units when writing space figures:
+
+`df -k`
+
+- Display information in a [P]ortable way:
+
+`df -P`

netbsd/pkgin

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pkgin
+
+> Manage `pkgsrc` binary packages on NetBSD.
+> More information: <https://pkgin.net/#usage>.
+
+- Install a package:
+
+`pkgin install {{package}}`
+
+- Remove a package and its dependencies:
+
+`pkgin remove {{package}}`
+
+- Upgrade all packages:
+
+`pkgin full-upgrade`
+
+- Search for a package:
+
+`pkgin search {{keyword}}`
+
+- List installed packages:
+
+`pkgin list`
+
+- Remove unneeded dependencies:
+
+`pkgin autoremove`

netbsd/sed

@@ -0,0 +1,38 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# sed
+
+> Edit text in a scriptable manner.
+> See also: `awk`, `ed`.
+> More information: <https://man.netbsd.org/sed.1>.
+
+- Replace all `apple` (basic regex) occurrences with `mango` (basic regex) in all input lines and print the result to `stdout`:
+
+`{{command}} | sed 's/apple/mango/g'`
+
+- Execute a specific script [f]ile and print the result to `stdout`:
+
+`{{command}} | sed -f {{path/to/script.sed}}`
+
+- Delay opening each file until a command containing the related `w` function or flag is applied to a line of input:
+
+`{{command}} | sed -fa {{path/to/script.sed}}`
+
+- Turn on GNU re[g]ex extension:
+
+`{{command}} | sed -fg {{path/to/script.sed}}`
+
+- Replace all `apple` (extended regex) occurrences with `APPLE` (extended regex) in all input lines and print the result to `stdout`:
+
+`{{command}} | sed -E 's/(apple)/\U\1/g'`
+
+- Print just a first line to `stdout`:
+
+`{{command}} | sed -n '1p'`
+
+- Replace all `apple` (basic regex) occurrences with `mango` (basic regex) in a specific file and overwrite the original file in place:
+
+`sed -i 's/apple/mango/g' {{path/to/file}}`

netbsd/sockstat

@@ -0,0 +1,31 @@
+---
+syntax: markdown
+tags: [tldr, netbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# sockstat
+
+> List open Internet or UNIX domain sockets.
+> Note: this program is a rewrite for NetBSD 3.0 from FreeBSD's `sockstat`.
+> See also: `netstat`.
+> More information: <https://man.freebsd.org/cgi/man.cgi?sockstat>.
+
+- Show information for IPv4, IPv6 and Unix sockets for both listening and connected sockets:
+
+`sockstat`
+
+- Show information for IPv[4]/IPv[6] sockets [l]istening on specific [p]orts using a specific [P]rotocol:
+
+`sockstat -{{4|6}} -l -P {{tcp|udp|sctp|divert}} -p {{port1,port2...}}`
+
+- Also show [c]onnected sockets, showing [u]nix sockets:
+
+`sockstat -cu`
+
+- Only show [n]umeric output, without resolving symbolic names for addresses and ports:
+
+`sockstat -n`
+
+- Only list sockets of the specified address [f]amily:
+
+`sockstat -f {{inet|inet6|local|unix}}`