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Top Forums UNIX for Dummies Questions & Answers awk for removing special characters and extra commas Post 302556727 by Shell_Life on Monday 19th of September 2011 11:24:21 AM
Old 09-19-2011
Quote:
Originally Posted by shruthidwh
I need to remove blank lines and special charcters.
Shruthi
You did not specify if you want to keep the line and remove special characters in it or if you want to remove the lines with special characters.

The following will remove:
1) Empty lines.
2) Lines with special characters.

Code:
sed '/^$/d;/[^a-zA-Z,0-9]/d' Inp_File

 

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SETCAP(8)						      System Manager's Manual							 SETCAP(8)

NAME
setcap - set file capabilities SYNOPSIS
setcap [-q] [-v] (capabilities|-|-r) filename [ ... capabilitiesN fileN ] DESCRIPTION
In the absence of the -v (verify) option setcap sets the capabilities of each specified filename to the capabilities specified. The -v option is used to verify that the specified capabilities are currently associated with the file. The capabilities are specified in the form described in cap_from_text(3). The special capability string, '-', can be used to indicate that capabilities are read from the standard input. In such cases, the capabil- ity set is terminated with a blank line. The special capability string, '-r', is used to remove a capability set from a file. The -q flag is used to make the program less verbose in its output. EXIT CODE
The setcap program will exit with a 0 exit code if successful. On failure, the exit code is 1. SEE ALSO
cap_from_text(3), cap_set_file(3), getcap(8) 24th October 2008 SETCAP(8)
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