how to get a particular line from a string array

Question

/server/fmw/idm_111/opatch2019-01-25_08-20-55AM_1.log 
/server/fmw/oamwebgate11g/opatch2019-01-25_08-20-57AM_1.log 
/server/fmw/ohs_111/opatch2019-01-25_08-20-59AM_1.log 
/server/fmw/oracle_common/opatch2019-01-25_08-21-01AM_1.log

above is the content of a string array in a shell, want to get the line which has ohs_111

How are you printing/storing the array? Which shell are you on? — Inian, Jan 25 '19 at 09:30

Ilya G · Answer 1 · 2019-01-25T11:27:50.387

2

grep - print lines matching a pattern.

For example:

grep -F ohs_111 file_with_content

Also grep could be used in script:

#! /usr/bin/env bash

array=("/server/fmw/idm_111/opatch2019-01-25_08-20-55AM_1.log"
    "/server/fmw/oamwebgate11g/opatch2019-01-25_08-20-57AM_1.log"
    "/server/fmw/ohs_111/opatch2019-01-25_08-20-59AM_1.log"
    "/server/fmw/oracle_common/opatch2019-01-25_08-21-01AM_1.log")

for line in ${array[@]}; do
    grep ohs_111 <<< $line
done

Output:

/server/fmw/ohs_111/opatch2019-01-25_08-20-59AM_1.log

edited Jan 25 '19 at 11:27

answered Jan 25 '19 at 10:40

Ilya G

329
3
8

Why the `.*` ? You can remove them. Without `-x` option to grep it doesn't match the whole line exact, only part of it. – KamilCuk Jan 25 '19 at 10:51

score 1 · Answer 2 · edited Jan 25 '19 at 17:56

1

see the example below:

#! /usr/bin/env bash
array=("hi...." "..foo/.." "..bar/..")
for i in ${array[@]}; do
    if [[ "$i" =~ "foo" ]] ; then
        echo "$i"
    fi
done

output:

..foo/..

edited Jan 25 '19 at 17:56

Ilya G

329
3
8

answered Jan 25 '19 at 09:45

Kent

189,393
32
233
301

bruno · Answer 3 · 2019-01-25T09:47:34.143

as it is explained in How to check if a string contains a substring in Bash for instance doing :

#!/bin/bash

array=("/server/fmw/idm_111/opatch2019-01-25_08-20-55AM_1.log" 
       "/server/fmw/oamwebgate11g/opatch2019-01-25_08-20-57AM_1.log" 
       "/server/fmw/ohs_111/opatch2019-01-25_08-20-59AM_1.log"
       "/server/fmw/oracle_common/opatch2019-01-25_08-21-01AM_1.log" )

for i in ${!array[*]}
do
  if [[ "${array[$i]}" == *"ohs_111"* ]]
  then
    echo "${array[$i]}"
  fi
done

how to get a particular line from a string array

3 Answers3