You can use the the substitute sed command changes all occurrences of the “ssh_args=-p 1222”. The same command can be used to delete the required words.
Tutorial details | |
---|---|
Difficulty | Easy (rss) |
Root privileges | No |
Requirements | sed |
Time | N/A |
Sed command syntax to remove words
The syntax is:
sed 's/word-to-find//g' input.file > output.file
Gnu/sed syntax:
sed -i 's/word-to-find//g' input.file
Examples
Type the following command
sed -i 's/ssh_args=-p 1222//g' input.file sed -i 's/ssh_args=-p 1222//g' /etc/rsnapshot.conf
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what is the command to find a word in a line, then deleting (that line and previous line)
example, I want to search for the word JDK, delete the JDK line and the previous line.
INPUT
————————-
Version 5.1
Version 5.1.1.12
ID BASE
Version 1.4.2
ID JDK
Version 5.1
Version 1.4.2
ID JDK
Version 5.1.1.12
ID ND
OUTPUT
—————————
Version 5.1
Version 5.1.1.12
ID BASE
Version 5.1
Version 5.1.1.12
ID ND