Update cheatsheets

tldr/checkov

@@ -0,0 +1,22 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# checkov
+
+> Checkov is a static code analysis tool for Infrastructure as Code (IaC).
+> It is also a software composition analysis (SCA) tool for images and open source packages.
+> More information: <https://www.checkov.io/1.Welcome/Quick%20Start.html>.
+
+- Scan a directory containing IaC (Terraform, Cloudformation, ARM, Ansible, Bicep, Dockerfile, etc):
+
+`checkov --directory {{path/to/directory}}`
+
+- Scan an IaC file, omitting code blocks in the output:
+
+`checkov --compact --file {{path/to/file}}`
+
+- List all checks for all IaC types:
+
+`checkov --list`

tldr/duf

@@ -23,3 +23,15 @@ source: https://github.com/tldr-pages/tldr.git
 - Sort the output by a specified criteria:
 
 `duf --sort {{size|used|avail|usage}}`
+
+- Show or hide specific filesystems:
+
+`duf --{{only-fs|hide-fs}} {{tmpfs|vfat|ext4|xfs}}`
+
+- Sort the output by key:
+
+`duf --sort {{mountpoint|size|used|avail|usage|inodes|inodes_used|inodes_avail|inodes_usage|type|filesystem}}`
+
+- Change the theme (if `duf` fails to use the right theme):
+
+`duf --theme {{dark|light}}`

tldr/icontopbm

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# icontopbm
+
+> This command is superseded by `sunicontopbm`.
+> More information: <https://netpbm.sourceforge.net/doc/icontopbm.html>.
+
+- View documentation for the current command:
+
+`tldr sunicontopbm`

tldr/pamarith

@@ -0,0 +1,14 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pamarith
+
+> Apply a binary function on two Netpbm images.
+> See also: `pamfunc`.
+> More information: <https://netpbm.sourceforge.net/doc/pamarith.html>.
+
+- Apply the specified binary function pixel-wise on the two specified images (which must be of the same size):
+
+`pamarith -{{add|subtract|multiply|divide|difference|minimum|maximum|...}} {{path/to/image1.pam|pbm|pgm|ppm}} {{path/to/image2.pam|pbm|pgm|ppm}}`

tldr/pbmto4425

@@ -0,0 +1,14 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pbmto4425
+
+> Display a PBM image on an AT&T 4425 terminal.
+> See also: `ppmtoterm`, `pbmtoascii`.
+> More information: <https://netpbm.sourceforge.net/doc/pbmto4425.html>.
+
+- Display a PBM image on an AT&T 4425 terminal using the terminal's mosaic graphics character set:
+
+`pbmto4425 {{path/to/image.pbm}}`

tldr/pbmtoascii

@@ -6,6 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # pbmtoascii
 
 > Convert a PBM image to ASCII graphics.
+> See also: `ppmtoascii`, `asciitopgm`, `ppmtoterm`.
 > More information: <https://netpbm.sourceforge.net/doc/pbmtoascii.html>.
 
 - Read a PBM file as input and produce an ASCII output:

tldr/pbmtoicon

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pbmtoicon
+
+> This command is superseded by `pbmtosunicon`.
+> More information: <https://netpbm.sourceforge.net/doc/pbmtoicon.html>.
+
+- View documentation for the current command:
+
+`tldr pbmtosunicon`

tldr/pbmtosunicon

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pbmtosunicon
+
+> Convert a PBM image into a Sun icon.
+> More information: <https://netpbm.sourceforge.net/doc/pbmtosunicon.html>.
+
+- Convert a PBM image into a Sun icon:
+
+`pbmtosunicon {{path/to/input.pbm}} > {{path/to/output.ico}}`

tldr/pnmarith

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pnmarith
+
+> This command is superseded by `pamarith`.
+> More information: <https://netpbm.sourceforge.net/doc/pnmarith.html>.
+
+- View documentation for the current command:
+
+`tldr pamarith`

tldr/pnmquant

@@ -7,6 +7,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 > Quantize the colors in a PNM image into a smaller set.
 > This command is a combination of `pnmcolormap` and `pnmremap` and accepts the union of their options, except `-mapfile`.
+> See also: `pnmquantall`.
 > More information: <https://netpbm.sourceforge.net/doc/pnmquant.html>.
 
 - Generate an image using only `n_colors` or less colors as close as possible to the input image:

tldr/pnmquantall

@@ -0,0 +1,18 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pnmquantall
+
+> Run `pnmquant` on multiple files at once such that they share a common colormap.
+> See also: `pnmquant`.
+> More information: <https://netpbm.sourceforge.net/doc/pnmquantall.html>.
+
+- Run `pnmquant` on multiple files with the specified parameters, overwriting the original files:
+
+`pnmquantall {{n_colors}} {{path/to/input1.pnm path/to/input2.pnm ...}}`
+
+- Save the quantised images to files named the same as the input files, but with the specified extension appended:
+
+`pnmquantall -ext {{extension}} {{n_colors}} {{path/to/input1.pnm path/to/input2.pnm ...}}`

tldr/ppmquantall

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ppmquantall
+
+> This command is superseded by `pnmquantall`.
+> More information: <https://netpbm.sourceforge.net/doc/ppmquantall.html>.
+
+- View documentation for the current command:
+
+`tldr pnmquantall`

tldr/ppmtoascii

@@ -0,0 +1,18 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ppmtoascii
+
+> Convert a PPM image to an ASCII image using ANSI terminal color codes.
+> See also: `ppmtoterm`, `pbmtoascii`, `pbmto4425`.
+> More information: <https://netpbm.sourceforge.net/doc/ppmtoascii.html>.
+
+- Convert a PPM image to an ASCII image, combining an area of 1x2 pixels into a character:
+
+`ppmtoascii {{path/to/input.ppm}} > {{path/to/output.txt}}`
+
+- Convert a PPM image to an ASCII image, combining an area of 2x4 pixels into a character:
+
+`ppmtoascii -2x4 {{path/to/input.ppm}} > {{path/to/output.txt}}`

tldr/ppmtoterm

@@ -0,0 +1,14 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ppmtoterm
+
+> Convert a PPM image to an ANSI ISO 6429 ASCII image.
+> See also: `ppmtoascii`, `pbmtoascii`, `pbmto4425`.
+> More information: <https://netpbm.sourceforge.net/doc/ppmtoterm.html>.
+
+- Convert a PPM image to an ANSI ISO 6429 ASCII image, mapping each pixel to an individual character:
+
+`ppmtoterm {{path/to/input.ppm}} > {{path/to/output.txt}}`

tldr/sox

@@ -15,7 +15,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Trim an audio file to the specified times:
 
-`sox {{path/to/input_audio}} {{path/to/output_audio}} trim {{start}} {{end}}`
+`sox {{path/to/input_audio}} {{path/to/output_audio}} trim {{start}} {{duration}}`
 
 - Normalize an audio file (adjust volume to the maximum peak level, without clipping):
 

tldr/sunicontopbm

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# sunicontopnm
+
+> Convert a Sun icon into a Netpbm image.
+> More information: <https://netpbm.sourceforge.net/doc/sunicontopnm.html>.
+
+- Convert a Sun icon into a Netpbm image:
+
+`sunicontopnm {{path/to/input.ico}} > {{path/to/output.pbm}}`

tldr/trivy

@@ -6,20 +6,36 @@ source: https://github.com/tldr-pages/tldr.git
 # trivy
 
 > Scanner for vulnerabilities in container images, file systems, and Git repositories, as well as for configuration issues.
-> More information: <https://github.com/aquasecurity/trivy>.
+> More information: <https://aquasecurity.github.io/trivy>.
 
-- Scan an image:
+- Scan a Docker image for vulnerabilities and exposed secrets:
 
 `trivy image {{image:tag}}`
 
+- Scan a Docker image filtering the output by severity:
+
+`trivy image --severity {{HIGH,CRITICAL}} {{alpine:3.15}}`
+
+- Scan a Docker image ignoring any unfixed/unpatched vulnerabilities:
+
+`trivy image --ignore-unfixed {{alpine:3.15}}`
+
 - Scan the filesystem for vulnerabilities and misconfigurations:
 
 `trivy fs --security-checks {{vuln,config}} {{path/to/project_directory}}`
 
-- Scan a directory for misconfigurations:
+- Scan a IaC (Terraform, CloudFormation, ARM, Helm and Dockerfile) directory for misconfigurations:
 
 `trivy config {{path/to/iac_directory}}`
 
+- Scan a local or remote Git repository for vulnerabilities:
+
+`trivy repo {{path/to/local_repository_directory|remote_repository_URL}}`
+
+- Scan a Git repository up to a specific commit hash:
+
+`trivy repo --commit {{commit_hash}} {{repository}}`
+
 - Generate output with a SARIF template:
 
 `trivy image --format {{template}} --template {{"@sarif.tpl"}} -o {{path/to/report.sarif}} {{image:tag}}`