> For the complete documentation index, see [llms.txt](https://ploegert.gitbook.io/til/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ploegert.gitbook.io/til/os/unix.md).

# linux

- [Reference](https://ploegert.gitbook.io/til/os/unix/reference.md)
- [ubuntu-specific](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific.md)
- [Upgrading Ubuntu](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific/upgrading-ubuntu.md)
- [Check Ubuntu Version](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific/check-ubuntu-version.md)
- [Config ubuntu 20.04 vm for rdp](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific/config-ubuntu-20.04-vm-for-rdp.md)
- [Setup Charles Proxy on Ubuntu](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific/setup-charles-proxy-on-ubuntu.md): This is an opinionated article that details how to setup Charles proxy on Ubuntu (as shown on 24.04). Please see charles website for more information: https://www.charlesproxy.com/.
- [SNMP Setup on Ubuntu](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific/snmp-setup-on-ubuntu.md)
- [pam\_mount for network shares](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific/pam_mount-for-network-shares.md)
- [LVM Disk Expansion](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific/lvm-disk-expansion.md)
- [Active Directory Domain Join](https://ploegert.gitbook.io/til/os/unix/ubuntu-specific/active-directory-domain-join.md)
- [Fedora](https://ploegert.gitbook.io/til/os/unix/fedora.md): Source: https://github.com/henk52/knowledgesharing/wiki/FedoraCookbook
- [alias](https://ploegert.gitbook.io/til/os/unix/alias.md)
- [Ignore The Alias When Running A Command](https://ploegert.gitbook.io/til/os/unix/alias/ignore-the-alias-when-running-a-command.md)
- [crypto](https://ploegert.gitbook.io/til/os/unix/crypto.md)
- [Generate A SAML Key And Certificate Pair](https://ploegert.gitbook.io/til/os/unix/crypto/generate-a-saml-key-and-certificate-pair.md)
- [datetime](https://ploegert.gitbook.io/til/os/unix/datetime.md)
- [Figure Out The Week Of The Year From The Terminal](https://ploegert.gitbook.io/til/os/unix/datetime/figure-out-the-week-of-the-year-from-the-terminal.md)
- [Show Current System Time And Settings](https://ploegert.gitbook.io/til/os/unix/datetime/show-current-system-time-and-settings.md)
- [Configure Your Server Timezone](https://ploegert.gitbook.io/til/os/unix/datetime/configure-your-server-timezone.md)
- [Get The Unix Timestamp](https://ploegert.gitbook.io/til/os/unix/datetime/get-the-unix-timestamp.md)
- [Touch Access And Modify Times Individually](https://ploegert.gitbook.io/til/os/unix/datetime/touch-access-and-modify-times-individually.md)
- [Format And Print The Current Date And Time](https://ploegert.gitbook.io/til/os/unix/datetime/format-and-print-the-current-date-and-time.md)
- [disk](https://ploegert.gitbook.io/til/os/unix/disk.md)
- [Add disk to Virtual Machine](https://ploegert.gitbook.io/til/os/unix/disk/add-disk-to-virtual-machine.md)
- [Display Free Disk Space](https://ploegert.gitbook.io/til/os/unix/disk/display-free-disk-space.md)
- [Show Disk Usage For The Current Directory](https://ploegert.gitbook.io/til/os/unix/disk/show-disk-usage-for-the-current-directory.md)
- [directory](https://ploegert.gitbook.io/til/os/unix/directory.md)
- [Change To That New Directory](https://ploegert.gitbook.io/til/os/unix/directory/change-to-that-new-directory.md)
- [Check The Current Working Directory](https://ploegert.gitbook.io/til/os/unix/directory/check-the-current-working-directory.md)
- [Configure cd To Behave Like pushd In Zsh](https://ploegert.gitbook.io/til/os/unix/directory/configure-cd-to-behave-like-pushd-in-zsh.md)
- [Display The Contents Of A Directory As A Tree](https://ploegert.gitbook.io/til/os/unix/directory/display-the-contents-of-a-directory-as-a-tree.md)
- [Copying Nested Directories With Ditto](https://ploegert.gitbook.io/til/os/unix/directory/copying-nested-directories-with-ditto.md)
- [Globbing For Filenames In Zsh](https://ploegert.gitbook.io/til/os/unix/directory/globbing-for-filenames-in-zsh.md)
- [Globbing For All Directories In Zsh](https://ploegert.gitbook.io/til/os/unix/directory/globbing-for-all-directories-in-zsh.md)
- [Use fzf To Change Directories](https://ploegert.gitbook.io/til/os/unix/directory/use-fzf-to-change-directories.md)
- [Show The Size Of Everything In A Directory](https://ploegert.gitbook.io/til/os/unix/directory/show-the-size-of-everything-in-a-directory.md)
- [List The Stack Of Remembered Directories](https://ploegert.gitbook.io/til/os/unix/directory/list-the-stack-of-remembered-directories.md)
- [file](https://ploegert.gitbook.io/til/os/unix/file.md)
- [Copying File Contents To System Paste Buffer](https://ploegert.gitbook.io/til/os/unix/file/copying-file-contents-to-system-paste-buffer.md)
- [Do Not Overwrite Existing Files](https://ploegert.gitbook.io/til/os/unix/file/do-not-overwrite-existing-files.md)
- [File Type Info With File](https://ploegert.gitbook.io/til/os/unix/file/file-type-info-with-file.md)
- [Find Files With fd](https://ploegert.gitbook.io/til/os/unix/file/find-files-with-fd.md)
- [Find Newer Files](https://ploegert.gitbook.io/til/os/unix/file/find-newer-files.md)
- [Get Matching Filenames As Output From Grep](https://ploegert.gitbook.io/til/os/unix/file/get-matching-filenames-as-output-from-grep.md)
- [Hexdump A Compiled File](https://ploegert.gitbook.io/til/os/unix/file/hexdump-a-compiled-file.md)
- [List Files Ordered By Modification Date](https://ploegert.gitbook.io/til/os/unix/file/list-files-ordered-by-modification-date.md)
- [List Names Of Files With Matches](https://ploegert.gitbook.io/til/os/unix/file/list-names-of-files-with-matches.md)
- [List Stats For A File](https://ploegert.gitbook.io/til/os/unix/file/list-stats-for-a-file.md)
- [Create A File Descriptor with Process Substitution](https://ploegert.gitbook.io/til/os/unix/file/create-a-file-descriptor-with-process-substitution.md)
- [Print Out Files In Reverse](https://ploegert.gitbook.io/til/os/unix/file/print-out-files-in-reverse.md)
- [Securely Remove Files](https://ploegert.gitbook.io/til/os/unix/file/securely-remove-files.md)
- [Print A Range Of Lines For A File With Bat](https://ploegert.gitbook.io/til/os/unix/file/print-a-range-of-lines-for-a-file-with-bat.md)
- [http](https://ploegert.gitbook.io/til/os/unix/http.md)
- [Curl With Cookies](https://ploegert.gitbook.io/til/os/unix/http/curl-with-cookies.md)
- [Curling For Headers](https://ploegert.gitbook.io/til/os/unix/http/curling-for-headers.md)
- [Curling With Basic Auth Credentials](https://ploegert.gitbook.io/til/os/unix/http/curling-with-basic-auth-credentials.md)
- [history](https://ploegert.gitbook.io/til/os/unix/history.md)
- [Jump To The Ends Of Your Shell History](https://ploegert.gitbook.io/til/os/unix/history/jump-to-the-ends-of-your-shell-history.md)
- [Last Argument Of The Last Command](https://ploegert.gitbook.io/til/os/unix/history/last-argument-of-the-last-command.md)
- [Global Substitution On The Previous Command](https://ploegert.gitbook.io/til/os/unix/history/global-substitution-on-the-previous-command.md)
- [Search History](https://ploegert.gitbook.io/til/os/unix/history/search-history.md)
- [java](https://ploegert.gitbook.io/til/os/unix/java.md)
- [List The Available JDKs](https://ploegert.gitbook.io/til/os/unix/java/list-the-available-jdks.md)
- [networking](https://ploegert.gitbook.io/til/os/unix/networking.md)
- [Check If A Port Is In Use](https://ploegert.gitbook.io/til/os/unix/networking/check-if-a-port-is-in-use.md)
- [Kill Everything Running On A Certain Port](https://ploegert.gitbook.io/til/os/unix/networking/kill-everything-running-on-a-certain-port.md)
- [Map A Domain To localhost](https://ploegert.gitbook.io/til/os/unix/networking/map-a-domain-to-localhost.md)
- [List Of Sessions To A Machine](https://ploegert.gitbook.io/til/os/unix/networking/list-of-sessions-to-a-machine.md)
- [package management](https://ploegert.gitbook.io/til/os/unix/package-management.md)
- [Get Repo's](https://ploegert.gitbook.io/til/os/unix/package-management/get-repos.md)
- [Hold package version - do not upgrade](https://ploegert.gitbook.io/til/os/unix/package-management/hold-package-version-do-not-upgrade.md)
- [Install a Specific Version of Package](https://ploegert.gitbook.io/til/os/unix/package-management/install-a-specific-version-of-package.md)
- [Switch Versions of a Brew Formula](https://ploegert.gitbook.io/til/os/unix/package-management/switch-versions-of-a-brew-formula.md)
- [Switch between Local & remote packages](https://ploegert.gitbook.io/til/os/unix/package-management/switch-between-local-and-remote-packages.md)
- [process](https://ploegert.gitbook.io/til/os/unix/process.md)
- [PID Of The Current Shell](https://ploegert.gitbook.io/til/os/unix/process/pid-of-the-current-shell.md)
- [Open The Current Command In An Editor](https://ploegert.gitbook.io/til/os/unix/process/open-the-current-command-in-an-editor.md)
- [List Parent pid With ps](https://ploegert.gitbook.io/til/os/unix/process/list-parent-pid-with-ps.md)
- [Check If Command Is Executable Before Using](https://ploegert.gitbook.io/til/os/unix/process/check-if-command-is-executable-before-using.md)
- [Exclude Certain Files From An rsync Run](https://ploegert.gitbook.io/til/os/unix/process/exclude-certain-files-from-an-rsync-run.md)
- [List The Statuses Of All Upstart Jobs](https://ploegert.gitbook.io/til/os/unix/process/list-the-statuses-of-all-upstart-jobs.md)
- [Do A Dry Run Of An rsync](https://ploegert.gitbook.io/til/os/unix/process/do-a-dry-run-of-an-rsync.md)
- [Where Are The Binaries?](https://ploegert.gitbook.io/til/os/unix/process/where-are-the-binaries.md)
- [Watch This Run Repeatedly](https://ploegert.gitbook.io/til/os/unix/process/watch-this-run-repeatedly.md)
- [shells](https://ploegert.gitbook.io/til/os/unix/shells.md)
- [Change Default Shell For A User](https://ploegert.gitbook.io/til/os/unix/shells/change-default-shell-for-a-user.md)
- [terminal](https://ploegert.gitbook.io/til/os/unix/terminal.md)
- [Clear The Screen](https://ploegert.gitbook.io/til/os/unix/terminal/clear-the-screen.md)
- [Cat Files With Color Using Bat](https://ploegert.gitbook.io/til/os/unix/terminal/cat-files-with-color-using-bat.md)
- [Display All The Terminal Colors](https://ploegert.gitbook.io/til/os/unix/terminal/display-all-the-terminal-colors.md)
- [Cat A File With Line Numbers](https://ploegert.gitbook.io/til/os/unix/terminal/cat-a-file-with-line-numbers.md)
- [Less With Style](https://ploegert.gitbook.io/til/os/unix/terminal/less-with-style.md)
- [View A Web Page In The Terminal](https://ploegert.gitbook.io/til/os/unix/terminal/view-a-web-page-in-the-terminal.md)
- [Undo Some Command Line Editing](https://ploegert.gitbook.io/til/os/unix/terminal/undo-some-command-line-editing.md)
- [Command Line Length Limitations](https://ploegert.gitbook.io/til/os/unix/terminal/command-line-length-limitations.md)
- [Saying Yes](https://ploegert.gitbook.io/til/os/unix/terminal/saying-yes.md)
- [Watch The Difference](https://ploegert.gitbook.io/til/os/unix/terminal/watch-the-difference.md)
- [string](https://ploegert.gitbook.io/til/os/unix/string.md)
- [Repeat Yourself](https://ploegert.gitbook.io/til/os/unix/string/repeat-yourself.md)
- [ssh](https://ploegert.gitbook.io/til/os/unix/ssh.md)
- [Killing A Frozen SSH Session](https://ploegert.gitbook.io/til/os/unix/ssh/killing-a-frozen-ssh-session.md)
- [Forward Multiple Ports Over SSH](https://ploegert.gitbook.io/til/os/unix/ssh/forward-multiple-ports-over-ssh.md)
- [SSH Escape Sequences](https://ploegert.gitbook.io/til/os/unix/ssh/ssh-escape-sequences.md)
- [Specify The Language For A File With Bat](https://ploegert.gitbook.io/til/os/unix/ssh/specify-the-language-for-a-file-with-bat.md)
- [SSH With Port Forwarding](https://ploegert.gitbook.io/til/os/unix/ssh/ssh-with-port-forwarding.md)
- [search/query](https://ploegert.gitbook.io/til/os/unix/search-query.md)
- [Count The Number Of Matches In A Grep](https://ploegert.gitbook.io/til/os/unix/search-query/count-the-number-of-matches-in-a-grep.md)
- [Enable Multi-Select Of Results With fzf](https://ploegert.gitbook.io/til/os/unix/search-query/enable-multi-select-of-results-with-fzf.md)
- [Exclude A Directory With Find](https://ploegert.gitbook.io/til/os/unix/search-query/exclude-a-directory-with-find.md)
- [Find A File Installed By Brew](https://ploegert.gitbook.io/til/os/unix/search-query/find-a-file-installed-by-brew.md)
- [Grep For Files With Multiple Matches](https://ploegert.gitbook.io/til/os/unix/search-query/grep-for-files-with-multiple-matches.md)
- [Grep For Multiple Patterns](https://ploegert.gitbook.io/til/os/unix/search-query/grep-for-multiple-patterns.md)
- [Grep For Files Without A Match](https://ploegert.gitbook.io/til/os/unix/search-query/grep-for-files-without-a-match.md)
- [Partial String Matching In Bash Scripts](https://ploegert.gitbook.io/til/os/unix/search-query/partial-string-matching-in-bash-scripts.md)
- [Only Show The Matches](https://ploegert.gitbook.io/til/os/unix/search-query/only-show-the-matches.md)
- [Search Files Specific To A Language](https://ploegert.gitbook.io/til/os/unix/search-query/search-files-specific-to-a-language.md)
- [Search Man Page Descriptions](https://ploegert.gitbook.io/til/os/unix/search-query/search-man-page-descriptions.md)
- [Show A File Preview When Searching With FZF](https://ploegert.gitbook.io/til/os/unix/search-query/show-a-file-preview-when-searching-with-fzf.md)
- [Use Regex Pattern Matching With Grep](https://ploegert.gitbook.io/til/os/unix/search-query/use-regex-pattern-matching-with-grep.md)
- [Skip Paging If Output Fits On Screen With Less](https://ploegert.gitbook.io/til/os/unix/search-query/skip-paging-if-output-fits-on-screen-with-less.md)
- [Sort In Numerical Order](https://ploegert.gitbook.io/til/os/unix/search-query/sort-in-numerical-order.md)
- [user](https://ploegert.gitbook.io/til/os/unix/user.md)
- [List All Users](https://ploegert.gitbook.io/til/os/unix/user/list-all-users.md)
- [variables](https://ploegert.gitbook.io/til/os/unix/variables.md)
- [All The Environment Variables](https://ploegert.gitbook.io/til/os/unix/variables/all-the-environment-variables.md)
- [Compare Two Variables In A Bash Script](https://ploegert.gitbook.io/til/os/unix/variables/compare-two-variables-in-a-bash-script.md)
- [Provide A Fallback Value For Unset Parameter](https://ploegert.gitbook.io/til/os/unix/variables/provide-a-fallback-value-for-unset-parameter.md)
- [Check If The First Argument Is Given](https://ploegert.gitbook.io/til/os/unix/variables/check-if-the-first-argument-is-given.md)


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