Update cheatsheets

tldr/linux/dnf

@@ -6,6 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # dnf
 
 > Package management utility for RHEL, Fedora, and CentOS (replaces yum).
+> Some subcommands such as `group` and `config-manager` have their own usage documentation.
 > For equivalent commands in other package managers, see <https://wiki.archlinux.org/title/Pacman/Rosetta>.
 > More information: <https://dnf.readthedocs.io>.
 

tldr/linux/dnf-group

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# dnf group
+
+> Manage virtual collections of packages on Fedora-based systems.
+> More information: <https://manned.org/man/dnf-group>.
+
+- List DNF groups, showing installed and uninstalled status in a table:
+
+`dnf group list`
+
+- Show DNF group info, including repository and optional packages:
+
+`dnf group info {{group_name}}`
+
+- Install DNF group:
+
+`dnf group install {{group_name}}`
+
+- Remove DNF group:
+
+`dnf group remove {{group_name}}`
+
+- Upgrade DNF group:
+
+`dnf group upgrade {{group_name}}`

tldr/linux/dnf5-group

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# dnf5 group
+
+> This command is an alias of `dnf group`.
+> Note: from Fedora 37 to 40 (inclusive), `dnf` runs DNF v4 while `dnf5` runs DNF v5.
+
+- View documentation for the original command:
+
+`tldr dnf group`

tldr/linux/jobs

@@ -7,7 +7,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 > Shell builtin for viewing information about processes spawned by the current shell.
 > Options other than `-l` and `-p` are exclusive to `bash`.
-> More information: <https://manned.org/jobs>.
+> More information: <https://www.gnu.org/software/bash/manual/bash.html#index-jobs>.
 
 - View jobs spawned by the current shell:
 

tldr/pwd

@@ -15,3 +15,7 @@ source: https://github.com/tldr-pages/tldr.git
 - Print the current directory, and resolve all symlinks (i.e. show the "physical" path):
 
 `pwd -P`
+
+- Print the current logical directory:
+
+`pwd -L`

tldr/trdsql

@@ -0,0 +1,37 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# trdsql
+
+> Execute SQL on CSV, LTSV, JSON, YAML, and TBLN files.
+> More information: <https://noborus.github.io/trdsql/>.
+
+- Convert object data from multiple JSON files to a CSV file with header (`-oh`) and double quote:
+
+`trdsql -ocsv -oh "SELECT * FROM {{path/to/file/*.json}}" | sed 's/\([^,]*\)/"&"/g' > {{path/to/file.csv}}`
+
+- Interpret JSON list as a table and put objects inside as columns (path/to/file.json: `{"list":[{"age":"26","name":"Tanaka"}]}`):
+
+`trdsql "SELECT * FROM {{path/to/file.json}}::.list`
+
+- Manipulate complex SQL query with data from multiple CSV files with first line is header (`-ih`):
+
+`trdsql -icsv -ih "SELECT {{column1,column2}} FROM {{path/to/file*.csv}} WHERE column2 != '' ORDER BY column1 GROUP BY column1"`
+
+- Merge content of 2 CSV files to one CSV file:
+
+`trdsql "SELECT {{column1,colum2}} FROM {{path/to/file1.csv}} UNION SELECT {{column1,column2}} FROM {{path/to/file2.csv}}"`
+
+- Connect to PostgreSQL database:
+
+`trdsql -driver postgres -dsn "host={{hostname}} port={{5433}} dbname={{database_name}}" "SELECT 1"`
+
+- Create table data to MySQL database from CSV file:
+
+`trdsql -driver mysql -dsn "{{username}}:{{password}}@{{hostname}}/{{database}}" -ih "CREATE TABLE {{table}} ({{column1}} int, {{colum2}} varchar(20)) AS SELECT {{column3}} AS {{column1}},{{column2}} FROM {{path/to/header_file.csv}}"`
+
+- Show data from compress log files:
+
+`trdsql -iltsv "SELECT * FROM {{path/to/access.log.gz}}"`