Combine two operations in one command - awk
I need to change
-
FROM
Car
Bus
-
TO
Helicopter
Airplane
This two commands are sufficient.
awk -i inplace '{sub(/Car/,"Helicopter")}1' file
awk -i inplace '{sub(/Bus/,"Airplane")}1' file
And this command is sufficient too.
sed -e 's/Car/Helicopter/'
-e 's/Bus/Airplane/'
-i file
In "awk" is it possible to combine two operations in one command like "sed".
Thanks in advance!
awk gawk mawk
add a comment |
I need to change
-
FROM
Car
Bus
-
TO
Helicopter
Airplane
This two commands are sufficient.
awk -i inplace '{sub(/Car/,"Helicopter")}1' file
awk -i inplace '{sub(/Bus/,"Airplane")}1' file
And this command is sufficient too.
sed -e 's/Car/Helicopter/'
-e 's/Bus/Airplane/'
-i file
In "awk" is it possible to combine two operations in one command like "sed".
Thanks in advance!
awk gawk mawk
1
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
did not work?
– Alex Stragies
Jan 6 '17 at 9:28
1
@AlexStragies This is the expected answer, I believe
– xhienne
Jan 6 '17 at 9:55
add a comment |
I need to change
-
FROM
Car
Bus
-
TO
Helicopter
Airplane
This two commands are sufficient.
awk -i inplace '{sub(/Car/,"Helicopter")}1' file
awk -i inplace '{sub(/Bus/,"Airplane")}1' file
And this command is sufficient too.
sed -e 's/Car/Helicopter/'
-e 's/Bus/Airplane/'
-i file
In "awk" is it possible to combine two operations in one command like "sed".
Thanks in advance!
awk gawk mawk
I need to change
-
FROM
Car
Bus
-
TO
Helicopter
Airplane
This two commands are sufficient.
awk -i inplace '{sub(/Car/,"Helicopter")}1' file
awk -i inplace '{sub(/Bus/,"Airplane")}1' file
And this command is sufficient too.
sed -e 's/Car/Helicopter/'
-e 's/Bus/Airplane/'
-i file
In "awk" is it possible to combine two operations in one command like "sed".
Thanks in advance!
awk gawk mawk
awk gawk mawk
asked Jan 6 '17 at 9:25
SabrinaSabrina
161
161
1
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
did not work?
– Alex Stragies
Jan 6 '17 at 9:28
1
@AlexStragies This is the expected answer, I believe
– xhienne
Jan 6 '17 at 9:55
add a comment |
1
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
did not work?
– Alex Stragies
Jan 6 '17 at 9:28
1
@AlexStragies This is the expected answer, I believe
– xhienne
Jan 6 '17 at 9:55
1
1
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
did not work?– Alex Stragies
Jan 6 '17 at 9:28
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
did not work?– Alex Stragies
Jan 6 '17 at 9:28
1
1
@AlexStragies This is the expected answer, I believe
– xhienne
Jan 6 '17 at 9:55
@AlexStragies This is the expected answer, I believe
– xhienne
Jan 6 '17 at 9:55
add a comment |
2 Answers
2
active
oldest
votes
Try it like this:
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
Now you have 3 Condition {Action}
blocks. 1
is a special case of a condition {action}
block.
Or try this:
awk -i inplace '{sub(/Car/,"Helicopter") ; sub(/Bus/,"Airplane")}1' file
, because an action block can have more than one statement.
This works as long as the later substitutions do not substitute something already processed by an earlier substitution. Take as an example changinggoods
intocargo
and thencar
intoautomobile
.
– Kusalananda
Jan 6 '17 at 11:42
add a comment |
awk -i inplace '
/^Car$/ { print "Helicopter"; next }
/^Bus$/ { print "Airplane"; next }
{ print }' file
By matching against the complete line (using the ^
and $
anchors), we make sure that we don't match the strings as substrings in other lines (e.g. the Car
in Cart
). By acting on the found line and then immediately executing next
we protect from changing a line into something that might trigger a later pattern.
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
Try it like this:
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
Now you have 3 Condition {Action}
blocks. 1
is a special case of a condition {action}
block.
Or try this:
awk -i inplace '{sub(/Car/,"Helicopter") ; sub(/Bus/,"Airplane")}1' file
, because an action block can have more than one statement.
This works as long as the later substitutions do not substitute something already processed by an earlier substitution. Take as an example changinggoods
intocargo
and thencar
intoautomobile
.
– Kusalananda
Jan 6 '17 at 11:42
add a comment |
Try it like this:
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
Now you have 3 Condition {Action}
blocks. 1
is a special case of a condition {action}
block.
Or try this:
awk -i inplace '{sub(/Car/,"Helicopter") ; sub(/Bus/,"Airplane")}1' file
, because an action block can have more than one statement.
This works as long as the later substitutions do not substitute something already processed by an earlier substitution. Take as an example changinggoods
intocargo
and thencar
intoautomobile
.
– Kusalananda
Jan 6 '17 at 11:42
add a comment |
Try it like this:
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
Now you have 3 Condition {Action}
blocks. 1
is a special case of a condition {action}
block.
Or try this:
awk -i inplace '{sub(/Car/,"Helicopter") ; sub(/Bus/,"Airplane")}1' file
, because an action block can have more than one statement.
Try it like this:
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
Now you have 3 Condition {Action}
blocks. 1
is a special case of a condition {action}
block.
Or try this:
awk -i inplace '{sub(/Car/,"Helicopter") ; sub(/Bus/,"Airplane")}1' file
, because an action block can have more than one statement.
answered Jan 6 '17 at 10:25
Alex StragiesAlex Stragies
3,3151638
3,3151638
This works as long as the later substitutions do not substitute something already processed by an earlier substitution. Take as an example changinggoods
intocargo
and thencar
intoautomobile
.
– Kusalananda
Jan 6 '17 at 11:42
add a comment |
This works as long as the later substitutions do not substitute something already processed by an earlier substitution. Take as an example changinggoods
intocargo
and thencar
intoautomobile
.
– Kusalananda
Jan 6 '17 at 11:42
This works as long as the later substitutions do not substitute something already processed by an earlier substitution. Take as an example changing
goods
into cargo
and then car
into automobile
.– Kusalananda
Jan 6 '17 at 11:42
This works as long as the later substitutions do not substitute something already processed by an earlier substitution. Take as an example changing
goods
into cargo
and then car
into automobile
.– Kusalananda
Jan 6 '17 at 11:42
add a comment |
awk -i inplace '
/^Car$/ { print "Helicopter"; next }
/^Bus$/ { print "Airplane"; next }
{ print }' file
By matching against the complete line (using the ^
and $
anchors), we make sure that we don't match the strings as substrings in other lines (e.g. the Car
in Cart
). By acting on the found line and then immediately executing next
we protect from changing a line into something that might trigger a later pattern.
add a comment |
awk -i inplace '
/^Car$/ { print "Helicopter"; next }
/^Bus$/ { print "Airplane"; next }
{ print }' file
By matching against the complete line (using the ^
and $
anchors), we make sure that we don't match the strings as substrings in other lines (e.g. the Car
in Cart
). By acting on the found line and then immediately executing next
we protect from changing a line into something that might trigger a later pattern.
add a comment |
awk -i inplace '
/^Car$/ { print "Helicopter"; next }
/^Bus$/ { print "Airplane"; next }
{ print }' file
By matching against the complete line (using the ^
and $
anchors), we make sure that we don't match the strings as substrings in other lines (e.g. the Car
in Cart
). By acting on the found line and then immediately executing next
we protect from changing a line into something that might trigger a later pattern.
awk -i inplace '
/^Car$/ { print "Helicopter"; next }
/^Bus$/ { print "Airplane"; next }
{ print }' file
By matching against the complete line (using the ^
and $
anchors), we make sure that we don't match the strings as substrings in other lines (e.g. the Car
in Cart
). By acting on the found line and then immediately executing next
we protect from changing a line into something that might trigger a later pattern.
answered Jan 28 at 18:14
KusalanandaKusalananda
128k16242399
128k16242399
add a comment |
add a comment |
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1
awk -i inplace '{sub(/Car/,"Helicopter")} {sub(/Bus/,"Airplane")}1' file
did not work?– Alex Stragies
Jan 6 '17 at 9:28
1
@AlexStragies This is the expected answer, I believe
– xhienne
Jan 6 '17 at 9:55