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 < $1
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LEARN ABOUT DEBIAN
xclip-copyfile
XCLIP-COPYFILE(1) General Commands Manual XCLIP-COPYFILE(1)
NAME
xclip-copyfile, xclip-cutfile, xclip-pastefile - copy and move files via the X clipboard
SYNOPSIS
xclip-copyfile [-p] FILES...
xclip-cutfile [-p] FILES...
xclip-pastefile
DESCRIPTION
xclip-copyfile copies files into the X clipboard, recursing into directories.
xclip-cutfile copies the files, but also deletes them afterwards.
-p preserve path formation
xclip-pastefile pastes the files out of the clipboard
EXAMPLES
Copying a file to a remote host
[maggie.lkpg.cendio.se ~]$ echo "A file created on ${HOSTNAME}" > file1
[maggie.lkpg.cendio.se ~]$ xclip-copyfile file1
[sofie.homeip.net ~/doc]$ xclip-pastefile
file1
[sofie.homeip.net ~/doc]$ cat file1
A file created on maggie.lkpg.cendio.se
Copying an entire tree structure
[sofie.homeip.net ~]$ xclip-copyfile doc
[maggie.lkpg.cendio.se ~/tmp]$ xclip-pastefile
doc/
doc/letter-mom-april.txt
doc/file1
doc/letter-dad-march.txt
Copying files with preserved path information
[maggie.lkpg.cendio.se ~]$ xclip-copyfile -p /etc/sysconfig/grub
tar: Removing leading `/' from member names
[sofie.homeip.net ~/tmp]$ xclip-pastefile
etc/sysconfig/grub
[sofie.homeip.net ~/tmp]$ ls etc/sysconfig/grub
etc/sysconfig/grub
Moving files
[sofie.homeip.net ~]$ ls letter-brother-may.txt
letter-brother-may.txt
[sofie.homeip.net ~]$ xclip-cutfile letter-brother-may.txt
[sofie.homeip.net ~]$ ls letter-brother-may.txt
ls: cannot access letter-brother-may.txt: No such file or directory
[sofie.homeip.net ~]$ cd doc
[sofie.homeip.net ~/doc]$ xclip-pastefile
letter-brother-may.txt
AUTHORS
This manual page was written by Maximilian Gass <mxey@cloudconnected.org> for the Debian project. It may be used for everything else, of
course.
XCLIP-COPYFILE(1)