Update cheatsheets

tldr/crontab

@@ -8,11 +8,11 @@ source: https://github.com/tldr-pages/tldr.git
 > Schedule cron jobs to run on a time interval for the current user.
 > More information: <https://manned.org/crontab>.
 
-- Edit the crontab file for the current user:
+- [e]dit the crontab file for the current user:
 
 `crontab -e`
 
-- Edit the crontab file for a specific user:
+- [e]dit the crontab file for a specific [u]ser:
 
 `sudo crontab -e -u {{user}}`
 
@@ -20,11 +20,11 @@ source: https://github.com/tldr-pages/tldr.git
 
 `crontab {{path/to/file}}`
 
-- View a list of existing cron jobs for current user:
+- [l]ist existing cron jobs for the current user:
 
 `crontab -l`
 
-- Remove all cron jobs for the current user:
+- [r]emove all cron jobs for the current user:
 
 `crontab -r`
 

tldr/gixy-next

@@ -6,29 +6,28 @@ source: https://github.com/tldr-pages/tldr.git
 # gixy-next
 
 > Analyze NGINX configuration files for security and performance misconfigurations.
-> An actively maintained fork of `gixy`.
 > More information: <https://gixy.io/usage/>.
 
 - Analyze `nginx` configuration (default path: `/etc/nginx/nginx.conf`):
 
-`gixy {{path/to/nginx.conf}}`
+`gixy-next {{path/to/nginx.conf}}`
 
 - Analyze a rendered configuration dump via `stdin` (`-`):
 
-`cat {{path/to/nginx-dump.conf}} | gixy -`
+`cat {{path/to/nginx-dump.conf}} | gixy-next -`
 
 - Run only specific checks (comma-separated):
 
-`gixy --tests {{http_splitting,ssrf,version_disclosure}} {{path/to/nginx.conf}}`
+`gixy-next --tests {{http_splitting,ssrf,version_disclosure}} {{path/to/nginx.conf}}`
 
 - Skip specific checks (comma-separated):
 
-`gixy --skips {{low_keepalive_requests,worker_rlimit_nofile_vs_connections}} {{path/to/nginx.conf}}`
+`gixy-next --skips {{low_keepalive_requests,worker_rlimit_nofile_vs_connections}} {{path/to/nginx.conf}}`
 
 - Only report issues at a given severity or higher:
 
-`gixy {{-l|-ll|-lll}} {{path/to/nginx.conf}}`
+`gixy-next {{-l|-ll|-lll}} {{path/to/nginx.conf}}`
 
 - Output as uncolored text or machine-readable JSON:
 
-`gixy {{[-f|--format]}} {{text|json}} {{path/to/nginx.conf}}`
+`gixy-next {{[-f|--format]}} {{text|json}} {{path/to/nginx.conf}}`

tldr/hledger-aregister

@@ -12,7 +12,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 `hledger {{[areg|aregister]}} assets:bank:checking`
 
-- Show transactions and running balance in the first account named `*savings*`:
+- Show transactions and running balance in the first account whose name contains `savings`:
 
 `hledger {{[areg|aregister]}} savings`
 

tldr/hledger-balance

@@ -13,7 +13,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 `hledger {{[bal|balance]}}`
 
-- Show the balance change in accounts named `*expenses*`, as a tree, summarising the top two levels only:
+- Show the balance change in accounts whose name contains `expenses`, as a tree, summarising the top two levels only:
 
 `hledger {{[bal|balance]}} {{expenses}} {{[-t|--tree]}} {{[-2|--depth 2]}}`
 
@@ -25,7 +25,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 `hledger {{[bal|balance]}} type:{{X}} {{[-MTAS|--monthly --row-total --average --sort-amount]}} --budget {{[-t|--tree]}} {{[-2|--depth 2]}} --no-elide`
 
-- Show end balances (including from postings before the start date), quarterly in 2024, in accounts named `*assets*` or `*liabilities*`:
+- Show end balances (including from postings before the start date), quarterly in 2024, in accounts whose name contains `assets` or `liabilities`:
 
 `hledger {{[bal|balance]}} {{[-H|--historical]}} {{[-p|--period]}} '{{quarterly in 2024}}' {{assets}} {{liabilities}}`
 

tldr/hledger-print

@@ -20,7 +20,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 `hledger print {{[-f|--file]}} {{path/to/2023.journal}} {{[-f|--file]}} {{path/to/2024.journal}} {{[-B|--cost]}}`
 
-- Show `$` transactions in `*food*` but not `*groceries*` accounts this month:
+- Show `$` transactions this month in accounts whose name contains `food` but not `groceries`:
 
 `hledger print cur:\$ food not:groceries date:thismonth`
 

tldr/jj-config

@@ -0,0 +1,34 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jj config
+
+> Manage config options.
+> Some subcommands such as `edit`, `get`, `list`, `path`, `set`, `unset` have their own usage documentation.
+> More information: <https://docs.jj-vcs.dev/latest/cli-reference/#jj-config>.
+
+- Start an editor on the user-level config file:
+
+`jj config {{[e|edit]}} --user`
+
+- Get the value of a config option:
+
+`jj config {{[g|get]}} {{name}}`
+
+- List all config variables and their values:
+
+`jj config {{[l|list]}}`
+
+- Print the path to the user-level config file:
+
+`jj config {{[p|path]}} --user`
+
+- Set a config option in the user-level config:
+
+`jj config {{[s|set]}} --user {{name}} {{value}}`
+
+- Unset a config option in the user-level config:
+
+`jj config {{[u|unset]}} --user {{name}}`

tldr/jj-config-edit

@@ -0,0 +1,22 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jj config edit
+
+> Start an editor on a config file.
+> See also: `jj config path`.
+> More information: <https://docs.jj-vcs.dev/latest/cli-reference/#jj-config-edit>.
+
+- Start an editor on the user-level config file:
+
+`jj config {{[e|edit]}} --user`
+
+- Start an editor on the repo-level config file:
+
+`jj config {{[e|edit]}} --repo`
+
+- Start an editor on the workspace-level config file:
+
+`jj config {{[e|edit]}} --workspace`

tldr/jj-config-get

@@ -0,0 +1,27 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jj config get
+
+> Get the value of a given config option.
+> Unlike `jj config list`, the result is printed without extra formatting for use in scripts.
+> See also: `jj config list`.
+> More information: <https://docs.jj-vcs.dev/latest/cli-reference/#jj-config-get>.
+
+- Get the value of a config option:
+
+`jj config {{[g|get]}} {{name}}`
+
+- Get the configured user name:
+
+`jj config {{[g|get]}} user.name`
+
+- Get the configured user email:
+
+`jj config {{[g|get]}} user.email`
+
+- Get the default revset for the log command:
+
+`jj config {{[g|get]}} revsets.log`

tldr/jj-config-list

@@ -0,0 +1,38 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jj config list
+
+> List variables set in config files, along with their values.
+> See also: `jj config get`.
+> More information: <https://docs.jj-vcs.dev/latest/cli-reference/#jj-config-list>.
+
+- List all config variables and their values:
+
+`jj config {{[l|list]}}`
+
+- List a specific config option:
+
+`jj config {{[l|list]}} {{name}}`
+
+- List user-level config variables:
+
+`jj config {{[l|list]}} --user`
+
+- List repo-level config variables:
+
+`jj config {{[l|list]}} --repo`
+
+- List config variables including built-in default values:
+
+`jj config {{[l|list]}} --include-defaults`
+
+- List config variables including overridden values:
+
+`jj config {{[l|list]}} --include-overridden`
+
+- List config variables with a custom template:
+
+`jj config {{[l|list]}} {{[-T|--template]}} {{template}}`

tldr/jj-config-path

@@ -0,0 +1,22 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jj config path
+
+> Print the paths to the config files.
+> See also: `jj config edit`.
+> More information: <https://docs.jj-vcs.dev/latest/cli-reference/#jj-config-path>.
+
+- Print the path to the user-level config file:
+
+`jj config {{[p|path]}} --user`
+
+- Print the path to the repo-level config file:
+
+`jj config {{[p|path]}} --repo`
+
+- Print the path to the workspace-level config file:
+
+`jj config {{[p|path]}} --workspace`

tldr/jj-config-set

@@ -0,0 +1,31 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jj config set
+
+> Set a config option to a given value.
+> The value is specified as a TOML expression.
+> See also: `jj config unset`.
+> More information: <https://docs.jj-vcs.dev/latest/cli-reference/#jj-config-set>.
+
+- Set the user name in the user-level config:
+
+`jj config {{[s|set]}} --user user.name "{{name}}"`
+
+- Set the user email in the user-level config:
+
+`jj config {{[s|set]}} --user user.email "{{email}}"`
+
+- Set a config option in the repo-level config:
+
+`jj config {{[s|set]}} --repo {{name}} {{value}}`
+
+- Set a config option in the workspace-level config:
+
+`jj config {{[s|set]}} --workspace {{name}} {{value}}`
+
+- Set a boolean config option:
+
+`jj config {{[s|set]}} --user {{name}} {{true|false}}`

tldr/jj-config-unset

@@ -0,0 +1,22 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jj config unset
+
+> Unset a config option.
+> See also: `jj config set`.
+> More information: <https://docs.jj-vcs.dev/latest/cli-reference/#jj-config-unset>.
+
+- Unset a config option in the user-level config:
+
+`jj config {{[u|unset]}} --user {{name}}`
+
+- Unset a config option in the repo-level config:
+
+`jj config {{[u|unset]}} --repo {{name}}`
+
+- Unset a config option in the workspace-level config:
+
+`jj config {{[u|unset]}} --workspace {{name}}`

tldr/jj-duplicate

@@ -18,19 +18,19 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Duplicate a revision onto a different parent:
 
-`jj duplicate --destination {{dest_revset}} {{revset}}`
+`jj duplicate {{[-d|--destination]}} {{dest_revset}} {{revset}}`
 
-- Duplicate a revision and insert it **after** other revision(s):
+- Duplicate a revision and insert it after other revision(s):
 
-`jj duplicate --insert-after {{after_revset}} {{revset}}`
+`jj duplicate {{[-A|--insert-after]}} {{after_revset}} {{revset}}`
 
-- Duplicate a revision and insert it **before** other revision(s):
+- Duplicate a revision and insert it before other revision(s):
 
-`jj duplicate --insert-before {{before_revset}} {{revset}}`
+`jj duplicate {{[-B|--insert-before]}} {{before_revset}} {{revset}}`
 
 - Duplicate onto multiple parents (creates a merge commit):
 
-`jj duplicate --destination {{destination1}} --destination {{destination2}} {{revset}}`
+`jj duplicate {{[-d|--destination]}} {{destination1}} {{[-d|--destination]}} {{destination2}} {{revset}}`
 
 - Duplicate multiple revisions:
 

tldr/linux/apptainer-overlay

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# apptainer overlay
+
+> Manage EXT3 writable overlay images for Apptainer containers.
+> More information: <https://apptainer.org/docs/user/main/cli/apptainer_overlay.html>.
+
+- Add a writable overlay to an existing SIF image:
+
+`apptainer overlay create {{[-s|--size]}} {{size}} {{path/to/image.sif}}`
+
+- Create a standalone EXT3 writable overlay image:
+
+`apptainer overlay create {{[-s|--size]}} {{size}} {{path/to/overlay.img}}`
+
+- Create a sparse overlay image:
+
+`apptainer overlay create {{[-s|--size]}} {{size}} {{[-S|--sparse]}} {{path/to/overlay.img}}`
+
+- Create an overlay for use with fakeroot:
+
+`apptainer overlay create {{[-f|--fakeroot]}} {{[-s|--size]}} {{size}} {{path/to/overlay.img}}`
+
+- Create an overlay with a specific directory in the layout:
+
+`apptainer overlay create --create-dir {{path/to/directory}} {{path/to/overlay.img}}`
+
+- Display help:
+
+`apptainer overlay {{[-h|--help]}}`

tldr/linux/slurmrestd

@@ -5,7 +5,7 @@ source: https://github.com/tldr-pages/tldr.git
 ---
 # slurmrestd
 
-> Interface to Slurm via REST API. It can be used in two modes: *Inetd Mode* & *Listen Mode*.
+> Interface to Slurm via REST API. It can be used in two modes: Inetd Mode and Listen Mode.
 > More information: <https://slurm.schedmd.com/slurmrestd.html>.
 
 - Change the [g]roup ID (and drop supplemental groups) before processing client requests:

tldr/ng-completion

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ng completion
+
+> Generate shell autocompletion scripts for the Angular CLI.
+> More information: <https://angular.dev/cli/completion>.
+
+- Set up autocompletion interactively for the current shell:
+
+`ng completion`
+
+- Generate an autocompletion script for `bash` or `zsh`:
+
+`ng completion script`
+
+- Source the autocompletion script in the current session:
+
+`source <(ng completion script)`

tldr/sftp

@@ -38,6 +38,6 @@ source: https://github.com/tldr-pages/tldr.git
 
 `lls`
 
-- [Interactive] et list of files on remote machine:
+- [Interactive] Get a list of files on the remote machine:
 
 `ls`

tldr/xdelta

@@ -5,14 +5,18 @@ source: https://github.com/tldr-pages/tldr.git
 ---
 # xdelta
 
-> Delta encoding utility.
-> Often used for applying patches to binary files.
-> More information: <https://github.com/jmacd/xdelta>.
+> A delta encoding utility to generate and apply patches to binary files.
+> For the modern version (v3), see `xdelta3`.
+> More information: <https://manned.org/xdelta>.
 
-- Apply a patch:
+- Generate a patch (delta) between two files:
 
-`xdelta -d -s {{path/to/input_file}} {{path/to/delta_file.xdelta}} {{path/to/output_file}}`
+`xdelta delta {{path/to/old_file}} {{path/to/new_file}} {{path/to/patch_file}}`
 
-- Create a patch:
+- Apply a patch to an old file to reconstruct the new file:
 
-`xdelta -e -s {{path/to/old_file}} {{path/to/new_file}} {{path/to/output_file.xdelta}}`
+`xdelta patch {{path/to/patch_file}} {{path/to/old_file}} {{path/to/new_file}}`
+
+- Generate a patch with a specific compression level:
+
+`xdelta delta -{{0..9}} {{path/to/old_file}} {{path/to/new_file}} {{path/to/patch_file}}`

tldr/xdelta3

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# xdelta3
+
+> A delta compression tool for binary files.
+> More information: <https://github.com/jmacd/xdelta/blob/wiki/CommandLineSyntax.md>.
+
+- Create a patch ([e]ncode) based on a [s]ource file:
+
+`xdelta3 -e -s {{path/to/old_file}} {{path/to/new_file}} {{path/to/patch_file}}`
+
+- Apply a patch ([d]ecompress) to a [s]ource file:
+
+`xdelta3 -d -s {{path/to/old_file}} {{path/to/patch_file}} {{path/to/new_file}}`
+
+- Create a patch with a specific compression level:
+
+`xdelta3 -{{0..9}} -s {{path/to/old_file}} {{path/to/new_file}} {{path/to/patch_file}}`

tldr/yara

@@ -0,0 +1,38 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# yara
+
+> Pattern matching tool for identifying and classifying malware.
+> See also: `yarac`.
+> More information: <https://yara.readthedocs.io/en/stable/commandline.html>.
+
+- Scan a specific file with a rule file:
+
+`yara {{path/to/rule.yar}} {{path/to/file}}`
+
+- Recursively scan a directory and subdirectories containing possible threats:
+
+`yara {{path/to/rule.yar}} {{[-r|--recursive]}} {{path/to/directory}}`
+
+- Scan a running process by its PID using multiple rules:
+
+`yara {{path/to/rule1.yar path/to/rule2.yar ...}} {{PID}}`
+
+- Print metadata associated with the matching rules:
+
+`yara {{[-m|--print-meta]}} {{path/to/rule.yar}} {{path/to/file}}`
+
+- Print the strings that caused the rule to match:
+
+`yara {{[-s|--print-strings]}} {{path/to/rule.yar}} {{path/to/file}}`
+
+- Use a specific number of threads for parallel scanning:
+
+`yara {{[-p|--threads]}} {{number_of_threads}} {{path/to/rule.yar}} {{path/to/directory}}`
+
+- Use compiled YARA rules file to scan a directory recursively:
+
+`yara {{[-C|--compiled-rules]}} {{path/to/rules.bin}} {{[-r|--recursive]}} {{path/to/directory}}`

tldr/yarac

@@ -0,0 +1,30 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# yarac
+
+> Compile YARA rule source files into a binary format for faster loading.
+> See also: `yara`.
+> More information: <https://manned.org/yarac>.
+
+- Compile a specific rule file:
+
+`yarac {{path/to/rule.yar}} {{path/to/rule.bin}}`
+
+- Compile multiple rule files into a single binary:
+
+`yarac {{path/to/rule1.yar path/to/rule2.yar ...}} {{path/to/rules.bin}}`
+
+- Define an external variable during compilation:
+
+`yarac -d {{identifier}}={{value}} {{path/to/rule.yar}} {{path/to/rule.bin}}`
+
+- Disable warnings during compilation:
+
+`yarac {{[-w|--no-warnings]}} {{path/to/rule.yar}} {{path/to/rule.bin}}`
+
+- Fail compilation on any warnings (do not use along with `--no-warnings`):
+
+`yarac --fail-on-warnings {{path/to/rule.yar}} {{path/to/rule.bin}}`