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shellmksksh

Korn Shell change date from a file


I recently had a question that was answered but I was writing in shell with cygwin. I found out I need to make this krn Shell compatible for MKS Toolkit.

The sed command does not like this and I am looking for a solution. the file is such that anything ending with -0 needs a date change with user input.

 137611B             0000000130220419    000013012632286-0003-0
 137618C             0000000120220420    000012012635623-0003-0
 141414-001B         0000000600220421    000060012629222-0003-1
 141608A             0000000010220422    000001012634368-0003-1
 146223C             0000000030220420    000003012626555-0003-1
 146327A             0000000020220422    000002012633825-0003-1
 137149D             0000000045220419    000004512632587-0003-0
 137050C             0000000018220419    000001812632410-0003-0
 137147A             0000000045220419    000004512632487-0003-0
 137233B             0000000144220421    000014412630711-0003-1

[[ $user_date = $(date -d "$user_date" +'+%y%m%d') ]]
for i in "$user_date"
do
sed -E '/-0$/{s/ ([^ ]{1,10})[^ ]* / \1'"$user_date"' /2}' ../*.txt > ../neworder.txt
done

Solution

  • suggesting single line awk :

    awk '/-0\s*$/{$2=gensub("[0-9]{6}$",d,1,$2)}{printf("%-12s%s %s\n",$1,$2,$3)}' d="$(date '+%y%m%d')" *.txt