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Old 08-20-2009
cola's Avatar
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Deleting a line from a file with sed and awk?
cat file.txt

Code:
fvnuiehuewf
ruevhxncvkjrh
zxjvurhfuwe
jkhvBEGINvfnvf
ijrgioe

Trying to delete a line that has the pattern "BEGIN"

cat sedtest

Code:
filename=file.txt
pattern=BEGIN

sed "/^$pattern/d" "$filename"
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Old 08-20-2009
danmero danmero is online now Forum Advisor  
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Code:
sed "/$pattern/d" file
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Old 08-20-2009
cola's Avatar
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Quote:
Originally Posted by danmero View Post
Code:
sed "/$pattern/d" file
Thank you.
How can I save this output in a variable and print that result (from variable)?
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Old 08-20-2009
danmero danmero is online now Forum Advisor  
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Code:
# VAR=$(sed "/$pattern/d" file)
# echo $VAR
fvnuiehuewf ruevhxncvkjrh zxjvurhfuwe ijrgioe
# echo "$VAR"
fvnuiehuewf
ruevhxncvkjrh
zxjvurhfuwe
ijrgioe
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Old 08-21-2009
cola's Avatar
cola cola is offline
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Quote:
Originally Posted by danmero View Post
Code:
# VAR=$(sed "/$pattern/d" file)
# echo $VAR
fvnuiehuewf ruevhxncvkjrh zxjvurhfuwe ijrgioe
# echo "$VAR"
fvnuiehuewf
ruevhxncvkjrh
zxjvurhfuwe
ijrgioe
How to print the result using sed and pipe "|" ?
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Old 08-21-2009
Leo Gutierrez Leo Gutierrez is offline
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Code:
#!/usr/bin/bash
filename=file.txt
pattern=BEGIN
cat "$filename" | sed "/$pattern/d"
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Old 08-21-2009
cola's Avatar
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Location: Dhaka,Bangladesh
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Quote:
Originally Posted by Leo Gutierrez View Post
Code:
#!/usr/bin/bash
filename=file.txt
pattern=BEGIN
cat "$filename" | sed "/$pattern/d"
How to change the contents of that file?That means deleting the line with "BEGIN" pattern from the file?
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