What is a unix command for deleting the first N characters of a line

Question

For example  I might want to   tail -f logfile   grep org springframework    lt command to remove first N characters gt    I was thinking that tr might have the ability to do this but I m not sure

User · Answer

I think awk would be the best tool for this as it can both filter and perform the necessary string manipulation functions on filtered lines   tail -f logfile   awk   org springframework   print substr  0  6      or  tail -f logfile   awk   org springframework   amp  amp  sub     5       0

User · Answer

Use cut   Eg  to strip the first 4 characters of each line  i e  start on the 5th char    tail -f logfile   grep org springframework   cut -c 5-

User · Answer

You can use cut    cut -c N- file txt  gt  new file txt   -c  characters  file txt  input file  new file txt  output file  N-  Characters from N to end to be cut and output to the new file   Can also have other args like   N     N-M    -M  meaning nth character  nth to mth character  first to mth character respectively   This will perform the operation to each line of the input file

User · Answer

sed  s     5      logfile    and you replace 5 by the number you want   it should do the trick     EDIT if for each line   sed  s     5    g  logfile

User · Answer

tail -f logfile   grep org springframework   cut -c 900-   would remove the first 900 characters  cut uses 900- to show the 900th character to the end of the line  however when I pipe all of this through grep I don t get anything

User · Answer

Here is simple function  tested in bash  1st param of function is string  2nd param is number of characters to be stripped  function stringStripNCharsFromStart       echo   1  2    1      Usage

[bash] What is a unix command for deleting the first N characters of a line?

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