diff --git a/20231018.p0/dbs-20231018.txt b/20231018.p0/dbs-20231018.txt index 51df12517b4922d5849498d6aa0973300b9d2a96..caee2d104e5248362a40db1f887417884eed7589 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 0000000000000000000000000000000000000000..a4e596a6bfb39926d1b42ba9bb384c9b2fab32de --- /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 0000000000000000000000000000000000000000..2e1b7d5f320f5ca544876297047f585b184d6c36 --- /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"