From e6baa9afdfbb9d9863a36cc4a69bc44045653e74 Mon Sep 17 00:00:00 2001 From: Peter Gerwinski <peter.gerwinski@hs-bochum.de> Date: Wed, 18 Oct 2023 15:27:09 +0200 Subject: [PATCH] Weitere Beispiele und Screenshots 18.10.2023 --- 20231018.p0/dbs-20231018.txt | 17 +++++++++++++++++ 20231018.p0/head-tail-01.txt | 16 ++++++++++++++++ 20231018.p0/tiere.csv | 5 +++++ 3 files changed, 38 insertions(+) create mode 100644 20231018.p0/head-tail-01.txt create mode 100644 20231018.p0/tiere.csv diff --git a/20231018.p0/dbs-20231018.txt b/20231018.p0/dbs-20231018.txt index 51df125..caee2d1 100644 --- a/20231018.p0/dbs-20231018.txt +++ b/20231018.p0/dbs-20231018.txt @@ -16,6 +16,23 @@ Beispiel: Tabelle $ ./programmchen 03 Name Mausi +Beispiel: Dasselbe mit CSV-Datei + + $ cat tiere.csv + "ID";"Name";"Tierart" + "01";"Wuffi";"Kater" + "02";"Maunzi";"Dt. Schäferhund" + "03";"Mausi";"Afr. Elefant" + "04";"Gargantua";"Spitzmaus" + $ ./programmchen B2 + Wuffi + $ ./programmchen A4 + 03 + $ ./programmchen C3 + Dt. Schäferhund + Hinweise: - man grep - man cut + - man head + - man tail diff --git a/20231018.p0/head-tail-01.txt b/20231018.p0/head-tail-01.txt new file mode 100644 index 0000000..a4e596a --- /dev/null +++ b/20231018.p0/head-tail-01.txt @@ -0,0 +1,16 @@ +cassini/home/peter/bo/2023ws/dbs/20231018.p0> cat tiere.csv +"ID";"Name";"Tierart" +"01";"Wuffi";"Kater" +"02";"Maunzi";"Dt. Schäferhund" +"03";"Mausi";"Afr. Elefant" +"04";"Gargantua";"Spitzmaus" +cassini/home/peter/bo/2023ws/dbs/20231018.p0> cat tiere.csv | head -4 +"ID";"Name";"Tierart" +"01";"Wuffi";"Kater" +"02";"Maunzi";"Dt. Schäferhund" +"03";"Mausi";"Afr. Elefant" +cassini/home/peter/bo/2023ws/dbs/20231018.p0> cat tiere.csv | head -4 | tail -1 +"03";"Mausi";"Afr. Elefant" +cassini/home/peter/bo/2023ws/dbs/20231018.p0> cat tiere.csv | head -4 | tail -1 | cut -d ";" -f 3 +"Afr. Elefant" +cassini/home/peter/bo/2023ws/dbs/20231018.p0> diff --git a/20231018.p0/tiere.csv b/20231018.p0/tiere.csv new file mode 100644 index 0000000..2e1b7d5 --- /dev/null +++ b/20231018.p0/tiere.csv @@ -0,0 +1,5 @@ +"ID";"Name";"Tierart" +"01";"Wuffi";"Kater" +"02";"Maunzi";"Dt. Schäferhund" +"03";"Mausi";"Afr. Elefant" +"04";"Gargantua";"Spitzmaus" -- GitLab