Bash
Lernen Sie Bash-Scripting von Variablen bis hin zu robusten, produktionsreifen Skripten. Schleifen, Arrays, Traps, set -euo pipefail und ein Server-Bootstrap-Abschlussprojekt.
12 Lektionen, der Reihe nach
- 120 Min.
Was ist Bash
Shell vs terminalBash vs sh vs zshInteractive shell vs scriptWhere Bash fits in DevOps - 225 Min.
Shebang und dein erstes Skript
Shebang#!/usr/bin/env bashChmod +x./script.sh vs bash script.shExit codes - 325 Min.
Variablen und Anführungszeichen
Variable assignmentDouble quotes vs single quotes${var} bracesCommand substitution $(...) - 430 Min.
Bedingungen und Tests
If statement[[ ]] testsString testsFile tests -f -d -e&& and ||Case statement - 525 Min.
Schleifen
For loopWhile loopUntil loopFor f in *.txt globbingC-style for loopBreak and continue - 625 Min.
Funktionen
Function definitionPositional args $1 $@ $#Return for exit codesEcho for outputLocal variables - 725 Min.
Arrays
Indexed arrays${arr[@]}${#arr[@]} lengthAssociative arrays declare -AIterating arrays - 825 Min.
String- und arithmetische Expansion
${var#prefix}${var%suffix}${var//old/new}$(( arith ))Printf formatting - 925 Min.
E/A-Umleitung und Pipes
>>><2>2>&1&>+3 - 1030 Min.
Fehlerbehandlung und Traps
Set -eSet -uSet -o pipefailTrap on EXITTrap on ERRCleanup functions - 1125 Min.
Debugging und Best Practices
Bash -xSet -xShellcheckSafe quotingNever parse ls[[ vs [+1 - 1260 Min.
Abschlussprojekt: Server-Bootstrap-Skript
Idempotent provisioningInstalling packagesCreating usersSSH key setupSystemd timersLogging+2
Lerne Bash in deiner Sprache
Jede Lektion, jedes Quiz und jede Tutor-Antwort erscheint in deiner Sprache. Der KI-Tutor antwortet in der Sprache, in der du fragst.
Roles that use Bash
See how hiring teams interview engineers on Bash, in production-like environments.
DevOps Engineer
Hire DevOps engineers who actually ship. Run live or take-home interviews in production-like Linux environments with Docker, Kubernetes, Terraform and CI/CD. See how they debug, automate, and work alongside AI.
See the interviewSite Reliability Engineer (SRE)
Hire SREs who actually run production. Live workspaces with metrics, logs, traces and a service that is starting to misbehave. We record every keystroke.
See the interviewInfrastructure Engineer
Hire infrastructure engineers who design systems your team can rely on. Interview them in real workspaces with Terraform, Ansible, cloud APIs and live failure scenarios.
See the interview