bash script a line of code i am trying to use
0
I have a file that I store reservation into it and I am trying to remove the old reservation and put the new reservation if the same name appears before.
does this line of code do it for me in bash?
sed -i .bak "/^$name|/d" reservation.txt
#!/bin/bash
#start by building a zenity command
ZCMD='/bin/zenity/bin/zenity --title=PA5'
name=`$ZCMD --entry --text="Enter your Name"`
cities=("Portland" "Vancouver" "Seattle" "Riyadh" "Jeddah" ""Las Vegas"" ""New York"")
departCity=`$ZCMD --entry --entry-text=${cities[@]} --text="Where are you departing from?"`
arrivalCity=`$ZCMD --entry --entry-text=${cities[@]} --text="Where are you going to?"`
departDate=`$ZCMD --calendar --text="Choose your departure dates"`
arrivalDate=`$ZCMD --calendar --text="Choose your arrival dates"`
bags=`$ZCMD --entry --entry-text=0 1 2 3 4 5 --text="How many bags are you taking?"`
#Summary of the trip info
echo "Travelers name: $name"
echo "Departure City: $departCity"
echo "Arrival City: $arrivalCity"
echo "Departing Date: $departDate"
echo "Arrival Date: $arrivalDate"
echo "Number of Bags: $bags"
echo "$name|$departCity|$arrivalCity|$departDate|$arrivalDate|$bags" >> reservation.txt
sed -i .bak "/^$name|/d" reservation.txt
bash
asked Nov 22 '18 at 3:59
Rawad BaderRawad Bader
42
|
show 1 more comment
0
I have a file that I store reservation into it and I am trying to remove the old reservation and put the new reservation if the same name appears before.
does this line of code do it for me in bash?
sed -i .bak "/^$name|/d" reservation.txt
#!/bin/bash
#start by building a zenity command
ZCMD='/bin/zenity/bin/zenity --title=PA5'
name=`$ZCMD --entry --text="Enter your Name"`
cities=("Portland" "Vancouver" "Seattle" "Riyadh" "Jeddah" ""Las Vegas"" ""New York"")
departCity=`$ZCMD --entry --entry-text=${cities[@]} --text="Where are you departing from?"`
arrivalCity=`$ZCMD --entry --entry-text=${cities[@]} --text="Where are you going to?"`
departDate=`$ZCMD --calendar --text="Choose your departure dates"`
arrivalDate=`$ZCMD --calendar --text="Choose your arrival dates"`
bags=`$ZCMD --entry --entry-text=0 1 2 3 4 5 --text="How many bags are you taking?"`
#Summary of the trip info
echo "Travelers name: $name"
echo "Departure City: $departCity"
echo "Arrival City: $arrivalCity"
echo "Departing Date: $departDate"
echo "Arrival Date: $arrivalDate"
echo "Number of Bags: $bags"
echo "$name|$departCity|$arrivalCity|$departDate|$arrivalDate|$bags" >> reservation.txt
sed -i .bak "/^$name|/d" reservation.txt
bash
asked Nov 22 '18 at 3:59
Rawad BaderRawad Bader
42
1
Welcome to StackOverflow! You could try to execute that yourself and see if it's doing it for you. Then if the result is not as what you expected, include both current and expected results, and sample data in your question.
– Andreas
Nov 22 '18 at 4:29
That will remove all lines that begin with the name. It doesn't add a new reservation, and doesn't check whether the same name appears before it.
– Barmar
Nov 22 '18 at 4:39
Okay, how I can replace the old name reservation with a new reservation? if you want to see my code I can post it here?
– Rawad Bader
Nov 22 '18 at 4:46
s/$name|/new reservation here/but then you have the opposite problem; if an old reservation doesn't exist, it won't create the new one either. Are you really married tosedfor this task?
– tripleee
Nov 22 '18 at 6:29
No, I can use different the "sed" but I do not know what to use?
– Rawad Bader
Nov 22 '18 at 7:52
|
show 1 more comment
0
0
0
I have a file that I store reservation into it and I am trying to remove the old reservation and put the new reservation if the same name appears before.
does this line of code do it for me in bash?
sed -i .bak "/^$name|/d" reservation.txt
#!/bin/bash
#start by building a zenity command
ZCMD='/bin/zenity/bin/zenity --title=PA5'
name=`$ZCMD --entry --text="Enter your Name"`
cities=("Portland" "Vancouver" "Seattle" "Riyadh" "Jeddah" ""Las Vegas"" ""New York"")
departCity=`$ZCMD --entry --entry-text=${cities[@]} --text="Where are you departing from?"`
arrivalCity=`$ZCMD --entry --entry-text=${cities[@]} --text="Where are you going to?"`
departDate=`$ZCMD --calendar --text="Choose your departure dates"`
arrivalDate=`$ZCMD --calendar --text="Choose your arrival dates"`
bags=`$ZCMD --entry --entry-text=0 1 2 3 4 5 --text="How many bags are you taking?"`
#Summary of the trip info
echo "Travelers name: $name"
echo "Departure City: $departCity"
echo "Arrival City: $arrivalCity"
echo "Departing Date: $departDate"
echo "Arrival Date: $arrivalDate"
echo "Number of Bags: $bags"
echo "$name|$departCity|$arrivalCity|$departDate|$arrivalDate|$bags" >> reservation.txt
sed -i .bak "/^$name|/d" reservation.txt
bash
asked Nov 22 '18 at 3:59
Rawad BaderRawad Bader
42
I have a file that I store reservation into it and I am trying to remove the old reservation and put the new reservation if the same name appears before.
does this line of code do it for me in bash?
sed -i .bak "/^$name|/d" reservation.txt
#!/bin/bash
#start by building a zenity command
ZCMD='/bin/zenity/bin/zenity --title=PA5'
name=`$ZCMD --entry --text="Enter your Name"`
cities=("Portland" "Vancouver" "Seattle" "Riyadh" "Jeddah" ""Las Vegas"" ""New York"")
departCity=`$ZCMD --entry --entry-text=${cities[@]} --text="Where are you departing from?"`
arrivalCity=`$ZCMD --entry --entry-text=${cities[@]} --text="Where are you going to?"`
departDate=`$ZCMD --calendar --text="Choose your departure dates"`
arrivalDate=`$ZCMD --calendar --text="Choose your arrival dates"`
bags=`$ZCMD --entry --entry-text=0 1 2 3 4 5 --text="How many bags are you taking?"`
#Summary of the trip info
echo "Travelers name: $name"
echo "Departure City: $departCity"
echo "Arrival City: $arrivalCity"
echo "Departing Date: $departDate"
echo "Arrival Date: $arrivalDate"
echo "Number of Bags: $bags"
echo "$name|$departCity|$arrivalCity|$departDate|$arrivalDate|$bags" >> reservation.txt
sed -i .bak "/^$name|/d" reservation.txt
bash
bash
asked Nov 22 '18 at 3:59
Rawad BaderRawad Bader
42
asked Nov 22 '18 at 3:59
Rawad BaderRawad Bader
42
edited Nov 22 '18 at 5:38
Rawad Bader
asked Nov 22 '18 at 3:59
Rawad BaderRawad Bader
42
asked Nov 22 '18 at 3:59
Rawad BaderRawad Bader
42
asked Nov 22 '18 at 3:59
Rawad BaderRawad Bader
42
42
1
Welcome to StackOverflow! You could try to execute that yourself and see if it's doing it for you. Then if the result is not as what you expected, include both current and expected results, and sample data in your question.
– Andreas
Nov 22 '18 at 4:29
That will remove all lines that begin with the name. It doesn't add a new reservation, and doesn't check whether the same name appears before it.
– Barmar
Nov 22 '18 at 4:39
Okay, how I can replace the old name reservation with a new reservation? if you want to see my code I can post it here?
– Rawad Bader
Nov 22 '18 at 4:46
s/$name|/new reservation here/but then you have the opposite problem; if an old reservation doesn't exist, it won't create the new one either. Are you really married tosedfor this task?
– tripleee
Nov 22 '18 at 6:29
No, I can use different the "sed" but I do not know what to use?
– Rawad Bader
Nov 22 '18 at 7:52
|
show 1 more comment
1
Welcome to StackOverflow! You could try to execute that yourself and see if it's doing it for you. Then if the result is not as what you expected, include both current and expected results, and sample data in your question.
– Andreas
Nov 22 '18 at 4:29
That will remove all lines that begin with the name. It doesn't add a new reservation, and doesn't check whether the same name appears before it.
– Barmar
Nov 22 '18 at 4:39
Okay, how I can replace the old name reservation with a new reservation? if you want to see my code I can post it here?
– Rawad Bader
Nov 22 '18 at 4:46
s/$name|/new reservation here/but then you have the opposite problem; if an old reservation doesn't exist, it won't create the new one either. Are you really married tosedfor this task?
– tripleee
Nov 22 '18 at 6:29
No, I can use different the "sed" but I do not know what to use?
– Rawad Bader
Nov 22 '18 at 7:52
1
1
Welcome to StackOverflow! You could try to execute that yourself and see if it's doing it for you. Then if the result is not as what you expected, include both current and expected results, and sample data in your question.
– Andreas
Nov 22 '18 at 4:29
Welcome to StackOverflow! You could try to execute that yourself and see if it's doing it for you. Then if the result is not as what you expected, include both current and expected results, and sample data in your question.
– Andreas
Nov 22 '18 at 4:29
That will remove all lines that begin with the name. It doesn't add a new reservation, and doesn't check whether the same name appears before it.
– Barmar
Nov 22 '18 at 4:39
That will remove all lines that begin with the name. It doesn't add a new reservation, and doesn't check whether the same name appears before it.
– Barmar
Nov 22 '18 at 4:39
Okay, how I can replace the old name reservation with a new reservation? if you want to see my code I can post it here?
– Rawad Bader
Nov 22 '18 at 4:46
Okay, how I can replace the old name reservation with a new reservation? if you want to see my code I can post it here?
– Rawad Bader
Nov 22 '18 at 4:46
s/$name|/new reservation here/ but then you have the opposite problem; if an old reservation doesn't exist, it won't create the new one either. Are you really married to sed for this task?– tripleee
Nov 22 '18 at 6:29
s/$name|/new reservation here/ but then you have the opposite problem; if an old reservation doesn't exist, it won't create the new one either. Are you really married to sed for this task?– tripleee
Nov 22 '18 at 6:29
No, I can use different the "sed" but I do not know what to use?
– Rawad Bader
Nov 22 '18 at 7:52
No, I can use different the "sed" but I do not know what to use?
– Rawad Bader
Nov 22 '18 at 7:52
|
show 1 more comment
1 Answer
1
active
oldest
votes
0
The bug is that you add a reservation and then immediately remove it. You should reverse the order of the last two commands: First delete any existing reservation, then add the new one.
Maybe make sure that you use the -i option correctly -- on some platforms you cannot have a space between -i and .bak (while on others it is mandatory).
answered Nov 22 '18 at 6:30
tripleeetripleee
89.3k13124182
Okay, how can I do that?
– Rawad Bader
Nov 22 '18 at 7:54
In your editor, delete thesedline and paste it above theecholine so that it comes last.
– tripleee
Nov 22 '18 at 7:57
Okay, I did it but it still keeping the same name reservation. is not replacing the old reservation with the newer reservation for the same name
– Rawad Bader
Nov 22 '18 at 8:09
I would like to overwrite the name if it appears in the text file already
– Rawad Bader
Nov 22 '18 at 8:22
That's the net effect of deleting if it it exists and then adding it unconditionally. Adding and then deleting obviously removes the thing you just added.
– tripleee
Nov 22 '18 at 8:26
|
show 5 more comments
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1 Answer
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oldest
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0
The bug is that you add a reservation and then immediately remove it. You should reverse the order of the last two commands: First delete any existing reservation, then add the new one.
Maybe make sure that you use the -i option correctly -- on some platforms you cannot have a space between -i and .bak (while on others it is mandatory).
answered Nov 22 '18 at 6:30
tripleeetripleee
89.3k13124182
Okay, how can I do that?
– Rawad Bader
Nov 22 '18 at 7:54
In your editor, delete thesedline and paste it above theecholine so that it comes last.
– tripleee
Nov 22 '18 at 7:57
Okay, I did it but it still keeping the same name reservation. is not replacing the old reservation with the newer reservation for the same name
– Rawad Bader
Nov 22 '18 at 8:09
I would like to overwrite the name if it appears in the text file already
– Rawad Bader
Nov 22 '18 at 8:22
That's the net effect of deleting if it it exists and then adding it unconditionally. Adding and then deleting obviously removes the thing you just added.
– tripleee
Nov 22 '18 at 8:26
|
show 5 more comments
0
The bug is that you add a reservation and then immediately remove it. You should reverse the order of the last two commands: First delete any existing reservation, then add the new one.
Maybe make sure that you use the -i option correctly -- on some platforms you cannot have a space between -i and .bak (while on others it is mandatory).
answered Nov 22 '18 at 6:30
tripleeetripleee
89.3k13124182
Okay, how can I do that?
– Rawad Bader
Nov 22 '18 at 7:54
In your editor, delete thesedline and paste it above theecholine so that it comes last.
– tripleee
Nov 22 '18 at 7:57
Okay, I did it but it still keeping the same name reservation. is not replacing the old reservation with the newer reservation for the same name
– Rawad Bader
Nov 22 '18 at 8:09
I would like to overwrite the name if it appears in the text file already
– Rawad Bader
Nov 22 '18 at 8:22
That's the net effect of deleting if it it exists and then adding it unconditionally. Adding and then deleting obviously removes the thing you just added.
– tripleee
Nov 22 '18 at 8:26
|
show 5 more comments
0
0
0
The bug is that you add a reservation and then immediately remove it. You should reverse the order of the last two commands: First delete any existing reservation, then add the new one.
Maybe make sure that you use the -i option correctly -- on some platforms you cannot have a space between -i and .bak (while on others it is mandatory).
answered Nov 22 '18 at 6:30
tripleeetripleee
89.3k13124182
The bug is that you add a reservation and then immediately remove it. You should reverse the order of the last two commands: First delete any existing reservation, then add the new one.
Maybe make sure that you use the -i option correctly -- on some platforms you cannot have a space between -i and .bak (while on others it is mandatory).
answered Nov 22 '18 at 6:30
tripleeetripleee
89.3k13124182
edited Nov 22 '18 at 8:52
answered Nov 22 '18 at 6:30
tripleeetripleee
89.3k13124182
answered Nov 22 '18 at 6:30
tripleeetripleee
89.3k13124182
answered Nov 22 '18 at 6:30
tripleeetripleee
89.3k13124182
89.3k13124182
Okay, how can I do that?
– Rawad Bader
Nov 22 '18 at 7:54
In your editor, delete thesedline and paste it above theecholine so that it comes last.
– tripleee
Nov 22 '18 at 7:57
Okay, I did it but it still keeping the same name reservation. is not replacing the old reservation with the newer reservation for the same name
– Rawad Bader
Nov 22 '18 at 8:09
I would like to overwrite the name if it appears in the text file already
– Rawad Bader
Nov 22 '18 at 8:22
That's the net effect of deleting if it it exists and then adding it unconditionally. Adding and then deleting obviously removes the thing you just added.
– tripleee
Nov 22 '18 at 8:26
|
show 5 more comments
Okay, how can I do that?
– Rawad Bader
Nov 22 '18 at 7:54
In your editor, delete thesedline and paste it above theecholine so that it comes last.
– tripleee
Nov 22 '18 at 7:57
Okay, I did it but it still keeping the same name reservation. is not replacing the old reservation with the newer reservation for the same name
– Rawad Bader
Nov 22 '18 at 8:09
I would like to overwrite the name if it appears in the text file already
– Rawad Bader
Nov 22 '18 at 8:22
That's the net effect of deleting if it it exists and then adding it unconditionally. Adding and then deleting obviously removes the thing you just added.
– tripleee
Nov 22 '18 at 8:26
Okay, how can I do that?
– Rawad Bader
Nov 22 '18 at 7:54
Okay, how can I do that?
– Rawad Bader
Nov 22 '18 at 7:54
In your editor, delete the
sed line and paste it above the echo line so that it comes last.– tripleee
Nov 22 '18 at 7:57
In your editor, delete the
sed line and paste it above the echo line so that it comes last.– tripleee
Nov 22 '18 at 7:57
Okay, I did it but it still keeping the same name reservation. is not replacing the old reservation with the newer reservation for the same name
– Rawad Bader
Nov 22 '18 at 8:09
Okay, I did it but it still keeping the same name reservation. is not replacing the old reservation with the newer reservation for the same name
– Rawad Bader
Nov 22 '18 at 8:09
I would like to overwrite the name if it appears in the text file already
– Rawad Bader
Nov 22 '18 at 8:22
I would like to overwrite the name if it appears in the text file already
– Rawad Bader
Nov 22 '18 at 8:22
That's the net effect of deleting if it it exists and then adding it unconditionally. Adding and then deleting obviously removes the thing you just added.
– tripleee
Nov 22 '18 at 8:26
That's the net effect of deleting if it it exists and then adding it unconditionally. Adding and then deleting obviously removes the thing you just added.
– tripleee
Nov 22 '18 at 8:26
|
show 5 more comments
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Welcome to StackOverflow! You could try to execute that yourself and see if it's doing it for you. Then if the result is not as what you expected, include both current and expected results, and sample data in your question.
– Andreas
Nov 22 '18 at 4:29
That will remove all lines that begin with the name. It doesn't add a new reservation, and doesn't check whether the same name appears before it.
– Barmar
Nov 22 '18 at 4:39
Okay, how I can replace the old name reservation with a new reservation? if you want to see my code I can post it here?
– Rawad Bader
Nov 22 '18 at 4:46
s/$name|/new reservation here/but then you have the opposite problem; if an old reservation doesn't exist, it won't create the new one either. Are you really married tosedfor this task?– tripleee
Nov 22 '18 at 6:29
No, I can use different the "sed" but I do not know what to use?
– Rawad Bader
Nov 22 '18 at 7:52