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informatica:linux:script [2020/09/14 18:57] – joseinformatica:linux:script [2021/02/04 13:17] – [Date] jose
Line 388: Line 388:
  
 ====== SED ====== ====== SED ======
 +No es sed, pero para reemplazar dentro de una variable
 +  var="hola que tal"
 +  echo $var
 +    hola que tal
 +Solo cambia el primero:
 +  echo ${var/ /%20}
 +    hola%20que tal
 +Los cambia todos:
 +  echo ${var// /%20}
 +    hola%20que%20tal
 +
 ===== Mostrar un parámetro ===== ===== Mostrar un parámetro =====
   echo "param1=hola param2=que param3=tal" | sed -e 's/^.*param1=\([^ ]*\).*$/\1/'   echo "param1=hola param2=que param3=tal" | sed -e 's/^.*param1=\([^ ]*\).*$/\1/'
Line 789: Line 800:
   date +%Y%m%d_%H%M%S   date +%Y%m%d_%H%M%S
   20190420_225307   20190420_225307
 +
 +Pasar una fecha a unixtime:
 +  date "+%s" -d "01/02/2021 13:11:04"
 +  
 +Coge formato americano MM/DD/YYY. Si probamos esto falla:
 +  date "+%s" -d "31/01/2021 13:11:04"
 +
 +Reordenamos las fechas:
 +  echo 31/01/2021 14:12:30 | awk 'BEGIN{FS=OFS="/"}{print $2,$1,$3}'|xargs -i date -d"{}" +"%s"
  
 ====== History ====== ====== History ======
informatica/linux/script.txt · Last modified: 2024/04/19 07:00 by jose