Teaching:
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| 3 | # press Ctrl+At+F2 … # press Ctrl+At+F7 |
| 5 | cat --help bat --help |
| 6 | man timeout |
| 7 | whatis time |
| 8 | man 1 man man 7 man |
| 9 | man bash # inside man: /printf /dirs N N … |
| 13 | ls /usr/share/zoneinfo/ ls ../../../../../bin |
| 14 | ls -a ls -a ~ |
| 16 | pwd |
| 17 | cd .config ls |
| 18 | cd /var/log |
| 20 | cd /usr/bin ls *cat |
| 21 | ls /usr/bin/*cat |
| 22 | ls /usr/bin/?? cd /usr/bin/ ls ?? |
| 23 | ls /usr/share/zoneinfo/* |
| 24 | ls /usr/share/zoneinfo/*/UTC |
| 25 | ls /usr/share/zoneinfo/*/L* |
| 26 | ls /usr/share/zoneinfo/*/[FH]* |
| 27 | # bash expanded ls* to "ls lsattr lsblk lscpu …" # and then executed "ls" with arguments "lsattr lsblk lscpu …" |