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Linux Shell counts the number and replacement of words

Source: Internet
Author: User
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1. count the number of occurrences

: % S/178 // ng

Text Test

711[10.235.170.22:8123]  0             10.232.20.178     1648042        1648042         0             2013-07-29 20:01:35711[10.235.170.22:8123]  11            10.232.20.178     6445135        6129386         315749        2013-07-29 20:19:40711[10.235.170.22:8123]  129           10.232.20.178     2220052        2220052         0             2013-07-29 19:33:04711[10.235.170.22:8123]  111           10.232.20.178     4939938        4754688         185250        2013-07-29 20:19:40711[10.235.170.22:8123]  123           10.232.20.178     284227         284227          0             2013-07-29 19:33:00711[10.235.170.22:8123]  112           10.232.20.178     4393638        4262994         130644        2013-07-29 20:19:40711[10.235.170.22:8123]  121           10.232.20.178     413891         413891          0             2013-07-29 19:33:00711[10.235.170.22:8123]  130           10.232.20.178     2803552        2803552         0             2013-07-29 19:33:04711[10.235.170.22:8123]  10            10.232.20.178     6558889        6235520         323369        2013-07-29 20:19:40711[10.235.170.22:8123]  106           10.232.20.178     5080974        4886037         194937        2013-07-29 20:19:40:%s/178//ng

As a result, it appears in 10 rows and 10 times in total. N, indicating only the number of matched reports, without actual replacement.

10 matches on 10 lines


2. Replace matching items
% S indicates replacement.

: % S/178/ggg

The result is

711[10.235.170.22:8123]  0             10.232.20.ggg     1648042        1648042         0             2013-07-29 20:01:35711[10.235.170.22:8123]  11            10.232.20.ggg     6445135        6129386         315749        2013-07-29 20:19:40711[10.235.170.22:8123]  129           10.232.20.ggg     2220052        2220052         0             2013-07-29 19:33:04711[10.235.170.22:8123]  111           10.232.20.ggg     4939938        4754688         185250        2013-07-29 20:19:40711[10.235.170.22:8123]  123           10.232.20.ggg     284227         284227          0             2013-07-29 19:33:00711[10.235.170.22:8123]  112           10.232.20.ggg     4393638        4262994         130644        2013-07-29 20:19:40711[10.235.170.22:8123]  121           10.232.20.ggg     413891         413891          0             2013-07-29 19:33:00711[10.235.170.22:8123]  130           10.232.20.ggg     2803552        2803552         0             2013-07-29 19:33:04711[10.235.170.22:8123]  10            10.232.20.ggg     6558889        6235520         323369        2013-07-29 20:19:40711[10.235.170.22:8123]  106           10.232.20.ggg     5080974        4886037         194937        2013-07-29 20:19:40
10 substitutions on 10 lines


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