replace with string present in Nth Line after a match in a line
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
1
I have the script which is formatted as below.
here in my example i require to search for "Probable Cause:Unspecified" and once found i need to replace the line with 4th line below.
Actual output is :
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Probable Cause: Unspecified reason
ack: blah blah blah
time: blah blah blah
Specific Event MOC: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
and once the string "Probable Cause: Unspecified reason" if found Probable Cause should be replaced with Specific Event MOC
final output required:
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
please help
regex linux perl awk sed
asked Nov 26 '18 at 20:28
PrayagPrayag
629
|
show 7 more comments
1
I have the script which is formatted as below.
here in my example i require to search for "Probable Cause:Unspecified" and once found i need to replace the line with 4th line below.
Actual output is :
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Probable Cause: Unspecified reason
ack: blah blah blah
time: blah blah blah
Specific Event MOC: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
and once the string "Probable Cause: Unspecified reason" if found Probable Cause should be replaced with Specific Event MOC
final output required:
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
please help
regex linux perl awk sed
asked Nov 26 '18 at 20:28
PrayagPrayag
629
1
What have you tried? How did it fail?
– choroba
Nov 26 '18 at 20:33
awk '/"Cause: Unspecified"/{gsub("Probable Cause:","Specific Event MOC",$1)};{print $0}'. it gives me same output
– Prayag
Nov 26 '18 at 20:34
@Prayag The phrase to use for replacement is presumably not alwaysSpecific Event ...; that's just this example. The replacement is found three lines down fromProbable Cause...
– zdim
Nov 26 '18 at 20:36
@zdim theSpecific Eventwill always be three line down below theprobable cause.
– Prayag
Nov 26 '18 at 20:39
1
yes. but not the contents after:... just the stringProbable CausewithSpecific Event MOCwith each other.
– Prayag
Nov 26 '18 at 20:54
|
show 7 more comments
1
1
1
I have the script which is formatted as below.
here in my example i require to search for "Probable Cause:Unspecified" and once found i need to replace the line with 4th line below.
Actual output is :
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Probable Cause: Unspecified reason
ack: blah blah blah
time: blah blah blah
Specific Event MOC: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
and once the string "Probable Cause: Unspecified reason" if found Probable Cause should be replaced with Specific Event MOC
final output required:
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
please help
regex linux perl awk sed
asked Nov 26 '18 at 20:28
PrayagPrayag
629
I have the script which is formatted as below.
here in my example i require to search for "Probable Cause:Unspecified" and once found i need to replace the line with 4th line below.
Actual output is :
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Probable Cause: Unspecified reason
ack: blah blah blah
time: blah blah blah
Specific Event MOC: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
and once the string "Probable Cause: Unspecified reason" if found Probable Cause should be replaced with Specific Event MOC
final output required:
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
please help
regex linux perl awk sed
regex linux perl awk sed
asked Nov 26 '18 at 20:28
PrayagPrayag
629
asked Nov 26 '18 at 20:28
PrayagPrayag
629
asked Nov 26 '18 at 20:28
PrayagPrayag
629
asked Nov 26 '18 at 20:28
PrayagPrayag
629
asked Nov 26 '18 at 20:28
PrayagPrayag
629
629
1
What have you tried? How did it fail?
– choroba
Nov 26 '18 at 20:33
awk '/"Cause: Unspecified"/{gsub("Probable Cause:","Specific Event MOC",$1)};{print $0}'. it gives me same output
– Prayag
Nov 26 '18 at 20:34
@Prayag The phrase to use for replacement is presumably not alwaysSpecific Event ...; that's just this example. The replacement is found three lines down fromProbable Cause...
– zdim
Nov 26 '18 at 20:36
@zdim theSpecific Eventwill always be three line down below theprobable cause.
– Prayag
Nov 26 '18 at 20:39
1
yes. but not the contents after:... just the stringProbable CausewithSpecific Event MOCwith each other.
– Prayag
Nov 26 '18 at 20:54
|
show 7 more comments
1
What have you tried? How did it fail?
– choroba
Nov 26 '18 at 20:33
awk '/"Cause: Unspecified"/{gsub("Probable Cause:","Specific Event MOC",$1)};{print $0}'. it gives me same output
– Prayag
Nov 26 '18 at 20:34
@Prayag The phrase to use for replacement is presumably not alwaysSpecific Event ...; that's just this example. The replacement is found three lines down fromProbable Cause...
– zdim
Nov 26 '18 at 20:36
@zdim theSpecific Eventwill always be three line down below theprobable cause.
– Prayag
Nov 26 '18 at 20:39
1
yes. but not the contents after:... just the stringProbable CausewithSpecific Event MOCwith each other.
– Prayag
Nov 26 '18 at 20:54
1
1
What have you tried? How did it fail?
– choroba
Nov 26 '18 at 20:33
What have you tried? How did it fail?
– choroba
Nov 26 '18 at 20:33
awk '/"Cause: Unspecified"/{gsub("Probable Cause:","Specific Event MOC",$1)};{print $0}'. it gives me same output– Prayag
Nov 26 '18 at 20:34
awk '/"Cause: Unspecified"/{gsub("Probable Cause:","Specific Event MOC",$1)};{print $0}'. it gives me same output– Prayag
Nov 26 '18 at 20:34
@Prayag The phrase to use for replacement is presumably not always
Specific Event ...; that's just this example. The replacement is found three lines down from Probable Cause...– zdim
Nov 26 '18 at 20:36
@Prayag The phrase to use for replacement is presumably not always
Specific Event ...; that's just this example. The replacement is found three lines down from Probable Cause...– zdim
Nov 26 '18 at 20:36
@zdim the
Specific Event will always be three line down below the probable cause.– Prayag
Nov 26 '18 at 20:39
@zdim the
Specific Event will always be three line down below the probable cause.– Prayag
Nov 26 '18 at 20:39
1
1
yes. but not the contents after
:... just the string Probable Cause with Specific Event MOC with each other.– Prayag
Nov 26 '18 at 20:54
yes. but not the contents after
:... just the string Probable Cause with Specific Event MOC with each other.– Prayag
Nov 26 '18 at 20:54
|
show 7 more comments
2 Answers
2
active
oldest
votes
1
Here is a 2 pass awk solution:
awk 'BEGIN{FS=OFS=":"}
FNR == NR {
r[FNR]=$1
next
}
/^Probable Cause:/ {
$1 = r[FNR+3]
n=FNR
}
FNR == n+3 && /^Specific Event / {
$1 = r[FNR-3]
} 1' file file
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
Explanation:
BEGINblock sets input and output field separators as:
FNR == NR: While processing file 1st time
r[FNR]=$1: Store first columns by key as their record no
next: Move to next record- Now awk will be processing file 2nd time
/^Probable Cause:/: When we find this text in a record
$1 = r[FNR+3]: Set 1st column as 1st column of 3rd record ahead from current
n=FNR: Store current record in variablen
FNR == n+3 && /^Specific Event /: When current record isn+3and we get line starting withSpecific Event
$1 = r[FNR-3]: Set 1st column as 1st column of 3rd previous record from current
answered Nov 26 '18 at 20:58
anubhavaanubhava
535k48334412
but i guess there will be two string ofProbable Cause..will be displayed out which is not matching with my final output as shown in my question
– Prayag
Nov 26 '18 at 21:01
sorry I had a mistake, try updated code now
– anubhava
Nov 26 '18 at 21:05
1
thanks Anubhava for the support . and also thanks to all for helping me out.is is possible to explain what exactly it is done by awk which you provided and what is the changes if i need to swap after a string is matched, like ifUnspecified reasonis found do the swapping in that line.
– Prayag
Nov 26 '18 at 21:09
I have modified myawkto make it more efficient and added detailed explanation.
– anubhava
Nov 26 '18 at 21:18
1
u r genius!!! . such precise explanation.
– Prayag
Nov 26 '18 at 21:24
add a comment |
1
your data in 'd', by gnu sed;
sed -E '/^Probable Cause:/{N;N;N;s/([^:]+)(:.+n.+n.+n)([^:]+):(.+)/321/}' d
answered Apr 8 at 12:29
abdanabdan
416
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
Here is a 2 pass awk solution:
awk 'BEGIN{FS=OFS=":"}
FNR == NR {
r[FNR]=$1
next
}
/^Probable Cause:/ {
$1 = r[FNR+3]
n=FNR
}
FNR == n+3 && /^Specific Event / {
$1 = r[FNR-3]
} 1' file file
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
Explanation:
BEGINblock sets input and output field separators as:
FNR == NR: While processing file 1st time
r[FNR]=$1: Store first columns by key as their record no
next: Move to next record- Now awk will be processing file 2nd time
/^Probable Cause:/: When we find this text in a record
$1 = r[FNR+3]: Set 1st column as 1st column of 3rd record ahead from current
n=FNR: Store current record in variablen
FNR == n+3 && /^Specific Event /: When current record isn+3and we get line starting withSpecific Event
$1 = r[FNR-3]: Set 1st column as 1st column of 3rd previous record from current
answered Nov 26 '18 at 20:58
anubhavaanubhava
535k48334412
but i guess there will be two string ofProbable Cause..will be displayed out which is not matching with my final output as shown in my question
– Prayag
Nov 26 '18 at 21:01
sorry I had a mistake, try updated code now
– anubhava
Nov 26 '18 at 21:05
1
thanks Anubhava for the support . and also thanks to all for helping me out.is is possible to explain what exactly it is done by awk which you provided and what is the changes if i need to swap after a string is matched, like ifUnspecified reasonis found do the swapping in that line.
– Prayag
Nov 26 '18 at 21:09
I have modified myawkto make it more efficient and added detailed explanation.
– anubhava
Nov 26 '18 at 21:18
1
u r genius!!! . such precise explanation.
– Prayag
Nov 26 '18 at 21:24
add a comment |
1
Here is a 2 pass awk solution:
awk 'BEGIN{FS=OFS=":"}
FNR == NR {
r[FNR]=$1
next
}
/^Probable Cause:/ {
$1 = r[FNR+3]
n=FNR
}
FNR == n+3 && /^Specific Event / {
$1 = r[FNR-3]
} 1' file file
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
Explanation:
BEGINblock sets input and output field separators as:
FNR == NR: While processing file 1st time
r[FNR]=$1: Store first columns by key as their record no
next: Move to next record- Now awk will be processing file 2nd time
/^Probable Cause:/: When we find this text in a record
$1 = r[FNR+3]: Set 1st column as 1st column of 3rd record ahead from current
n=FNR: Store current record in variablen
FNR == n+3 && /^Specific Event /: When current record isn+3and we get line starting withSpecific Event
$1 = r[FNR-3]: Set 1st column as 1st column of 3rd previous record from current
answered Nov 26 '18 at 20:58
anubhavaanubhava
535k48334412
but i guess there will be two string ofProbable Cause..will be displayed out which is not matching with my final output as shown in my question
– Prayag
Nov 26 '18 at 21:01
sorry I had a mistake, try updated code now
– anubhava
Nov 26 '18 at 21:05
1
thanks Anubhava for the support . and also thanks to all for helping me out.is is possible to explain what exactly it is done by awk which you provided and what is the changes if i need to swap after a string is matched, like ifUnspecified reasonis found do the swapping in that line.
– Prayag
Nov 26 '18 at 21:09
I have modified myawkto make it more efficient and added detailed explanation.
– anubhava
Nov 26 '18 at 21:18
1
u r genius!!! . such precise explanation.
– Prayag
Nov 26 '18 at 21:24
add a comment |
1
1
1
Here is a 2 pass awk solution:
awk 'BEGIN{FS=OFS=":"}
FNR == NR {
r[FNR]=$1
next
}
/^Probable Cause:/ {
$1 = r[FNR+3]
n=FNR
}
FNR == n+3 && /^Specific Event / {
$1 = r[FNR-3]
} 1' file file
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
Explanation:
BEGINblock sets input and output field separators as:
FNR == NR: While processing file 1st time
r[FNR]=$1: Store first columns by key as their record no
next: Move to next record- Now awk will be processing file 2nd time
/^Probable Cause:/: When we find this text in a record
$1 = r[FNR+3]: Set 1st column as 1st column of 3rd record ahead from current
n=FNR: Store current record in variablen
FNR == n+3 && /^Specific Event /: When current record isn+3and we get line starting withSpecific Event
$1 = r[FNR-3]: Set 1st column as 1st column of 3rd previous record from current
answered Nov 26 '18 at 20:58
anubhavaanubhava
535k48334412
Here is a 2 pass awk solution:
awk 'BEGIN{FS=OFS=":"}
FNR == NR {
r[FNR]=$1
next
}
/^Probable Cause:/ {
$1 = r[FNR+3]
n=FNR
}
FNR == n+3 && /^Specific Event / {
$1 = r[FNR-3]
} 1' file file
Serial : blah blah blah
A-TYPE: blah blah blah
O-type: blah blah blah
instance: blah blah blah
fault: blah blah blah
sev: blah blah blah
Specific Event MOC: Unspecified reason
ack: blah blah blah
time: blah blah blah
Probable Cause: blah blah blah
cause: blah blah blah
Specific Problem: blah blah blah
Explanation:
BEGINblock sets input and output field separators as:
FNR == NR: While processing file 1st time
r[FNR]=$1: Store first columns by key as their record no
next: Move to next record- Now awk will be processing file 2nd time
/^Probable Cause:/: When we find this text in a record
$1 = r[FNR+3]: Set 1st column as 1st column of 3rd record ahead from current
n=FNR: Store current record in variablen
FNR == n+3 && /^Specific Event /: When current record isn+3and we get line starting withSpecific Event
$1 = r[FNR-3]: Set 1st column as 1st column of 3rd previous record from current
answered Nov 26 '18 at 20:58
anubhavaanubhava
535k48334412
edited Nov 26 '18 at 21:18
answered Nov 26 '18 at 20:58
anubhavaanubhava
535k48334412
answered Nov 26 '18 at 20:58
anubhavaanubhava
535k48334412
answered Nov 26 '18 at 20:58
anubhavaanubhava
535k48334412
535k48334412
but i guess there will be two string ofProbable Cause..will be displayed out which is not matching with my final output as shown in my question
– Prayag
Nov 26 '18 at 21:01
sorry I had a mistake, try updated code now
– anubhava
Nov 26 '18 at 21:05
1
thanks Anubhava for the support . and also thanks to all for helping me out.is is possible to explain what exactly it is done by awk which you provided and what is the changes if i need to swap after a string is matched, like ifUnspecified reasonis found do the swapping in that line.
– Prayag
Nov 26 '18 at 21:09
I have modified myawkto make it more efficient and added detailed explanation.
– anubhava
Nov 26 '18 at 21:18
1
u r genius!!! . such precise explanation.
– Prayag
Nov 26 '18 at 21:24
add a comment |
but i guess there will be two string ofProbable Cause..will be displayed out which is not matching with my final output as shown in my question
– Prayag
Nov 26 '18 at 21:01
sorry I had a mistake, try updated code now
– anubhava
Nov 26 '18 at 21:05
1
thanks Anubhava for the support . and also thanks to all for helping me out.is is possible to explain what exactly it is done by awk which you provided and what is the changes if i need to swap after a string is matched, like ifUnspecified reasonis found do the swapping in that line.
– Prayag
Nov 26 '18 at 21:09
I have modified myawkto make it more efficient and added detailed explanation.
– anubhava
Nov 26 '18 at 21:18
1
u r genius!!! . such precise explanation.
– Prayag
Nov 26 '18 at 21:24
but i guess there will be two string of
Probable Cause.. will be displayed out which is not matching with my final output as shown in my question– Prayag
Nov 26 '18 at 21:01
but i guess there will be two string of
Probable Cause.. will be displayed out which is not matching with my final output as shown in my question– Prayag
Nov 26 '18 at 21:01
sorry I had a mistake, try updated code now
– anubhava
Nov 26 '18 at 21:05
sorry I had a mistake, try updated code now
– anubhava
Nov 26 '18 at 21:05
1
1
thanks Anubhava for the support . and also thanks to all for helping me out.is is possible to explain what exactly it is done by awk which you provided and what is the changes if i need to swap after a string is matched, like if
Unspecified reason is found do the swapping in that line.– Prayag
Nov 26 '18 at 21:09
thanks Anubhava for the support . and also thanks to all for helping me out.is is possible to explain what exactly it is done by awk which you provided and what is the changes if i need to swap after a string is matched, like if
Unspecified reason is found do the swapping in that line.– Prayag
Nov 26 '18 at 21:09
I have modified my
awk to make it more efficient and added detailed explanation.– anubhava
Nov 26 '18 at 21:18
I have modified my
awk to make it more efficient and added detailed explanation.– anubhava
Nov 26 '18 at 21:18
1
1
u r genius!!! . such precise explanation.
– Prayag
Nov 26 '18 at 21:24
u r genius!!! . such precise explanation.
– Prayag
Nov 26 '18 at 21:24
add a comment |
1
your data in 'd', by gnu sed;
sed -E '/^Probable Cause:/{N;N;N;s/([^:]+)(:.+n.+n.+n)([^:]+):(.+)/321/}' d
answered Apr 8 at 12:29
abdanabdan
416
add a comment |
1
your data in 'd', by gnu sed;
sed -E '/^Probable Cause:/{N;N;N;s/([^:]+)(:.+n.+n.+n)([^:]+):(.+)/321/}' d
answered Apr 8 at 12:29
abdanabdan
416
add a comment |
1
1
1
your data in 'd', by gnu sed;
sed -E '/^Probable Cause:/{N;N;N;s/([^:]+)(:.+n.+n.+n)([^:]+):(.+)/321/}' d
answered Apr 8 at 12:29
abdanabdan
416
your data in 'd', by gnu sed;
sed -E '/^Probable Cause:/{N;N;N;s/([^:]+)(:.+n.+n.+n)([^:]+):(.+)/321/}' d
answered Apr 8 at 12:29
abdanabdan
416
answered Apr 8 at 12:29
abdanabdan
416
answered Apr 8 at 12:29
abdanabdan
416
answered Apr 8 at 12:29
abdanabdan
416
416
add a comment |
add a comment |
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1
What have you tried? How did it fail?
– choroba
Nov 26 '18 at 20:33
awk '/"Cause: Unspecified"/{gsub("Probable Cause:","Specific Event MOC",$1)};{print $0}'. it gives me same output– Prayag
Nov 26 '18 at 20:34
@Prayag The phrase to use for replacement is presumably not always
Specific Event ...; that's just this example. The replacement is found three lines down fromProbable Cause...– zdim
Nov 26 '18 at 20:36
@zdim the
Specific Eventwill always be three line down below theprobable cause.– Prayag
Nov 26 '18 at 20:39
1
yes. but not the contents after
:... just the stringProbable CausewithSpecific Event MOCwith each other.– Prayag
Nov 26 '18 at 20:54