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Grep value of a specific key from a String, concatenated of key : value pairs
Reversing the value key pairs of array using sed or pattern replacement or brace expansion?Reading a string till a key word and replacing from there with another stringMatching “keyword value” pairs from semi-structured inputComplete key value pairssed/awk replace a specific pattern under another patternHow to grep two strings in line by specific order AND calculating values line by line according to my grepHow to grep lines which have more than specific number of special charactersHow to select specific columns from a file with a string separator
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty
margin-bottom:0;
I have a string which is concatenation of "key":"value" pairs separated by "," like-
KEY1:VALUE1, KEY2:VALUE2, KEY3:VALUE3
From this string, I have to grep for a specific string -- let's say KEY2 -- so the output of our command should be VALUE2.
shell-script awk sed
edited May 19 at 10:43
Jeff Schaller♦
50.3k11 gold badges74 silver badges167 bronze badges
asked May 13 at 12:49
Abhijeet srivastavaAbhijeet srivastava
111 bronze badge
add a comment
|
I have a string which is concatenation of "key":"value" pairs separated by "," like-
KEY1:VALUE1, KEY2:VALUE2, KEY3:VALUE3
From this string, I have to grep for a specific string -- let's say KEY2 -- so the output of our command should be VALUE2.
shell-script awk sed
edited May 19 at 10:43
Jeff Schaller♦
50.3k11 gold badges74 silver badges167 bronze badges
asked May 13 at 12:49
Abhijeet srivastavaAbhijeet srivastava
111 bronze badge
3
Can the values contain quotes commas or colons? Is it JSON?
– Jeff Schaller♦
May 13 at 12:54
add a comment
|
I have a string which is concatenation of "key":"value" pairs separated by "," like-
KEY1:VALUE1, KEY2:VALUE2, KEY3:VALUE3
From this string, I have to grep for a specific string -- let's say KEY2 -- so the output of our command should be VALUE2.
shell-script awk sed
edited May 19 at 10:43
Jeff Schaller♦
50.3k11 gold badges74 silver badges167 bronze badges
asked May 13 at 12:49
Abhijeet srivastavaAbhijeet srivastava
111 bronze badge
I have a string which is concatenation of "key":"value" pairs separated by "," like-
KEY1:VALUE1, KEY2:VALUE2, KEY3:VALUE3
From this string, I have to grep for a specific string -- let's say KEY2 -- so the output of our command should be VALUE2.
shell-script awk sed
shell-script awk sed
edited May 19 at 10:43
Jeff Schaller♦
50.3k11 gold badges74 silver badges167 bronze badges
asked May 13 at 12:49
Abhijeet srivastavaAbhijeet srivastava
111 bronze badge
edited May 19 at 10:43
Jeff Schaller♦
50.3k11 gold badges74 silver badges167 bronze badges
asked May 13 at 12:49
Abhijeet srivastavaAbhijeet srivastava
111 bronze badge
edited May 19 at 10:43
Jeff Schaller♦
50.3k11 gold badges74 silver badges167 bronze badges
edited May 19 at 10:43
Jeff Schaller♦
50.3k11 gold badges74 silver badges167 bronze badges
edited May 19 at 10:43
Jeff Schaller♦
50.3k11 gold badges74 silver badges167 bronze badges
50.3k11 gold badges74 silver badges167 bronze badges
asked May 13 at 12:49
Abhijeet srivastavaAbhijeet srivastava
111 bronze badge
asked May 13 at 12:49
Abhijeet srivastavaAbhijeet srivastava
111 bronze badge
asked May 13 at 12:49
Abhijeet srivastavaAbhijeet srivastava
111 bronze badge
111 bronze badge
3
Can the values contain quotes commas or colons? Is it JSON?
– Jeff Schaller♦
May 13 at 12:54
add a comment
|
3
Can the values contain quotes commas or colons? Is it JSON?
– Jeff Schaller♦
May 13 at 12:54
3
3
Can the values contain quotes commas or colons? Is it JSON?
– Jeff Schaller♦
May 13 at 12:54
Can the values contain quotes commas or colons? Is it JSON?
– Jeff Schaller♦
May 13 at 12:54
add a comment
|
4 Answers
4
active
oldest
votes
Using pgrep:
grep -Po '(^|[ ,])KEY1:K[^,]*'
or egrep and cut:
grep -Eo '(^|[ ,])KEY2:[^,]*' | cut -d: -f2-
For both methods, the Value is not allowed to contain comma.
If you had proper json, e.g.
"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"
you could use jq:
jq ".KEY2"
answered May 13 at 12:56
pLumopLumo
7,93115 silver badges36 bronze badges
add a comment
|
With regular grep assuming VALUE doesn't contain a colon:
grep -o 'KEY2:[^,]+' | grep -o '[^:]+$'
answered May 13 at 14:18
ThorThor
13.1k1 gold badge41 silver badges64 bronze badges
@RoVo: added caveat
– Thor
May 13 at 14:25
add a comment
|
To grep only the value
echo $myString | grep -Po "(?<=KEY2:)[^,]*"
or
grep -Po "(?<=KEY2:)[^,]*" <<< $myString
answered May 13 at 14:52
bu5hmanbu5hman
1,7331 gold badge4 silver badges15 bronze badges
add a comment
|
Use awk, read key:value pair as record, read key, value as 1st and 2nd field.
awk -v RS=' *, *' -v FS=' *: *' '$1=="KEY2"print $2' <<<$str
-v RS=' *, *'set record separator to,and it's surrounding space-v FS=' *: *'set field separator to:and it's surrounding space'$1=="KEY2"print $2'print value if key found. change "KEY2" to your desired key value.
answered May 19 at 11:21
dedowsdidedowsdi
8702 silver badges9 bronze badges
add a comment
|
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
Using pgrep:
grep -Po '(^|[ ,])KEY1:K[^,]*'
or egrep and cut:
grep -Eo '(^|[ ,])KEY2:[^,]*' | cut -d: -f2-
For both methods, the Value is not allowed to contain comma.
If you had proper json, e.g.
"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"
you could use jq:
jq ".KEY2"
answered May 13 at 12:56
pLumopLumo
7,93115 silver badges36 bronze badges
add a comment
|
Using pgrep:
grep -Po '(^|[ ,])KEY1:K[^,]*'
or egrep and cut:
grep -Eo '(^|[ ,])KEY2:[^,]*' | cut -d: -f2-
For both methods, the Value is not allowed to contain comma.
If you had proper json, e.g.
"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"
you could use jq:
jq ".KEY2"
answered May 13 at 12:56
pLumopLumo
7,93115 silver badges36 bronze badges
add a comment
|
Using pgrep:
grep -Po '(^|[ ,])KEY1:K[^,]*'
or egrep and cut:
grep -Eo '(^|[ ,])KEY2:[^,]*' | cut -d: -f2-
For both methods, the Value is not allowed to contain comma.
If you had proper json, e.g.
"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"
you could use jq:
jq ".KEY2"
answered May 13 at 12:56
pLumopLumo
7,93115 silver badges36 bronze badges
Using pgrep:
grep -Po '(^|[ ,])KEY1:K[^,]*'
or egrep and cut:
grep -Eo '(^|[ ,])KEY2:[^,]*' | cut -d: -f2-
For both methods, the Value is not allowed to contain comma.
If you had proper json, e.g.
"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"
you could use jq:
jq ".KEY2"
answered May 13 at 12:56
pLumopLumo
7,93115 silver badges36 bronze badges
edited May 14 at 9:02
answered May 13 at 12:56
pLumopLumo
7,93115 silver badges36 bronze badges
answered May 13 at 12:56
pLumopLumo
7,93115 silver badges36 bronze badges
answered May 13 at 12:56
pLumopLumo
7,93115 silver badges36 bronze badges
7,93115 silver badges36 bronze badges
add a comment
|
add a comment
|
With regular grep assuming VALUE doesn't contain a colon:
grep -o 'KEY2:[^,]+' | grep -o '[^:]+$'
answered May 13 at 14:18
ThorThor
13.1k1 gold badge41 silver badges64 bronze badges
@RoVo: added caveat
– Thor
May 13 at 14:25
add a comment
|
With regular grep assuming VALUE doesn't contain a colon:
grep -o 'KEY2:[^,]+' | grep -o '[^:]+$'
answered May 13 at 14:18
ThorThor
13.1k1 gold badge41 silver badges64 bronze badges
@RoVo: added caveat
– Thor
May 13 at 14:25
add a comment
|
With regular grep assuming VALUE doesn't contain a colon:
grep -o 'KEY2:[^,]+' | grep -o '[^:]+$'
answered May 13 at 14:18
ThorThor
13.1k1 gold badge41 silver badges64 bronze badges
With regular grep assuming VALUE doesn't contain a colon:
grep -o 'KEY2:[^,]+' | grep -o '[^:]+$'
answered May 13 at 14:18
ThorThor
13.1k1 gold badge41 silver badges64 bronze badges
edited May 13 at 14:24
answered May 13 at 14:18
ThorThor
13.1k1 gold badge41 silver badges64 bronze badges
answered May 13 at 14:18
ThorThor
13.1k1 gold badge41 silver badges64 bronze badges
answered May 13 at 14:18
ThorThor
13.1k1 gold badge41 silver badges64 bronze badges
13.1k1 gold badge41 silver badges64 bronze badges
@RoVo: added caveat
– Thor
May 13 at 14:25
add a comment
|
@RoVo: added caveat
– Thor
May 13 at 14:25
@RoVo: added caveat
– Thor
May 13 at 14:25
@RoVo: added caveat
– Thor
May 13 at 14:25
add a comment
|
To grep only the value
echo $myString | grep -Po "(?<=KEY2:)[^,]*"
or
grep -Po "(?<=KEY2:)[^,]*" <<< $myString
answered May 13 at 14:52
bu5hmanbu5hman
1,7331 gold badge4 silver badges15 bronze badges
add a comment
|
To grep only the value
echo $myString | grep -Po "(?<=KEY2:)[^,]*"
or
grep -Po "(?<=KEY2:)[^,]*" <<< $myString
answered May 13 at 14:52
bu5hmanbu5hman
1,7331 gold badge4 silver badges15 bronze badges
add a comment
|
To grep only the value
echo $myString | grep -Po "(?<=KEY2:)[^,]*"
or
grep -Po "(?<=KEY2:)[^,]*" <<< $myString
answered May 13 at 14:52
bu5hmanbu5hman
1,7331 gold badge4 silver badges15 bronze badges
To grep only the value
echo $myString | grep -Po "(?<=KEY2:)[^,]*"
or
grep -Po "(?<=KEY2:)[^,]*" <<< $myString
answered May 13 at 14:52
bu5hmanbu5hman
1,7331 gold badge4 silver badges15 bronze badges
answered May 13 at 14:52
bu5hmanbu5hman
1,7331 gold badge4 silver badges15 bronze badges
answered May 13 at 14:52
bu5hmanbu5hman
1,7331 gold badge4 silver badges15 bronze badges
answered May 13 at 14:52
bu5hmanbu5hman
1,7331 gold badge4 silver badges15 bronze badges
1,7331 gold badge4 silver badges15 bronze badges
add a comment
|
add a comment
|
Use awk, read key:value pair as record, read key, value as 1st and 2nd field.
awk -v RS=' *, *' -v FS=' *: *' '$1=="KEY2"print $2' <<<$str
-v RS=' *, *'set record separator to,and it's surrounding space-v FS=' *: *'set field separator to:and it's surrounding space'$1=="KEY2"print $2'print value if key found. change "KEY2" to your desired key value.
answered May 19 at 11:21
dedowsdidedowsdi
8702 silver badges9 bronze badges
add a comment
|
Use awk, read key:value pair as record, read key, value as 1st and 2nd field.
awk -v RS=' *, *' -v FS=' *: *' '$1=="KEY2"print $2' <<<$str
-v RS=' *, *'set record separator to,and it's surrounding space-v FS=' *: *'set field separator to:and it's surrounding space'$1=="KEY2"print $2'print value if key found. change "KEY2" to your desired key value.
answered May 19 at 11:21
dedowsdidedowsdi
8702 silver badges9 bronze badges
add a comment
|
Use awk, read key:value pair as record, read key, value as 1st and 2nd field.
awk -v RS=' *, *' -v FS=' *: *' '$1=="KEY2"print $2' <<<$str
-v RS=' *, *'set record separator to,and it's surrounding space-v FS=' *: *'set field separator to:and it's surrounding space'$1=="KEY2"print $2'print value if key found. change "KEY2" to your desired key value.
answered May 19 at 11:21
dedowsdidedowsdi
8702 silver badges9 bronze badges
Use awk, read key:value pair as record, read key, value as 1st and 2nd field.
awk -v RS=' *, *' -v FS=' *: *' '$1=="KEY2"print $2' <<<$str
-v RS=' *, *'set record separator to,and it's surrounding space-v FS=' *: *'set field separator to:and it's surrounding space'$1=="KEY2"print $2'print value if key found. change "KEY2" to your desired key value.
answered May 19 at 11:21
dedowsdidedowsdi
8702 silver badges9 bronze badges
answered May 19 at 11:21
dedowsdidedowsdi
8702 silver badges9 bronze badges
answered May 19 at 11:21
dedowsdidedowsdi
8702 silver badges9 bronze badges
answered May 19 at 11:21
dedowsdidedowsdi
8702 silver badges9 bronze badges
8702 silver badges9 bronze badges
add a comment
|
add a comment
|
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3
Can the values contain quotes commas or colons? Is it JSON?
– Jeff Schaller♦
May 13 at 12:54