delr(USP)

Name

delr : Delete lines that match exactly

Synopsis

Usage   : delr <field> <str> <file>

Version : Tue Jan  9 09:02:34 JST 2024

Edition : 1

Description

Delete lines from <file> where the specified field <field> matches

the specified string <str> exactly.

If <file> is omitted or equal to "-", data is read from stdin.

Example 1

Delete lines where the specified field matches exactly.

$ cat data

0001 a

0002 b

0003 c

0004 c

$ delr 1 0001 data

0002 b

0003 c

0004 c

Example 2

$ delr 2 c data

0001 a

0002 b