05-17-2005
delete line in a file
Hi all,
I would like to delete a line in file.txt which has a list of filename.
example:
file_a
file_b
file_c
lets say i have file_b in my directory, then i should delete file_b in file.txt and get output file.txt with only file_a and file_b.
Below is my script, my result is still
file_a
file_b
file_c
Anyone can help???
#!/bin/bash
while read line
do
if [[ -r $line ]]
then
sed -e '/$line/d' $1 > $1.tmp
mv $1.tmp $1
else
echo "file not readable"
fi
done < $1
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BEAV(1) General Commands Manual BEAV(1)
NAME
beav - binary file editor and viewer
SYNOPSIS
beav [file...]
DESCRIPTION
This is a brief description of the minimal set of commands that are necessary to start using beav effectively. For more information,
review the file /usr/share/doc/beav/beav140.txt.gz.
The file-visit command, Ctl-X Ctl-V, can be used to read a file in for editing. The file can also be read in from the command line; beav
<edit_file>.
Data is displayed in one or more windows. These commands can be used to navigate around the windows.
move-back-char Ctl-B moves left
move-back-line Ctl-P moves up
move-forw-char Ctl-F moves right
move-forw-line Ctl-N moves down
window-delete Ctl-X 0 delete window
window-expand Ctl-X 1 expand window
The move-to-byte command, Ctl-X G, will prompt you for a byte position to move to.
These commands will insert a zero byte at the cursor position or delete the byte at that position.
insert-unit Ctl-X I
delete-forw-unit Esc D
The file-save command, Ctl-X Ctl-S, will save the data to the file if a change has been made.
The help command, Esc ?, will display a list of all commands and their current key bindings.
The abort-cmd command, Ctl-G, will abort any command that is in operation.
The quit-no-save command, Ctl-X Ctl-C, will exit beav. If there is any data that has not been saved you will be warned.
FILES
/usr/share/doc/beav/beav140.txt.gz
BEAV(1)