I would guess that it depends on how you remove the top lines. This is at the bash prompt...
In the example above, I created a file then submitted a background process to append to the file. Using sed -i to remove the first line didn't work, but awk worked okay.
hi i'm new to shell scripts and have a small problem
i am running a batch converter that returns all flash .flv files in a directory and create a png image from each one
the problem i have is the $1 variable , its ok on the first call but on the secound call $1.png , i have extra... (1 Reply)
I need to remove the entire file contents in file using the shell script.
Actually the grap -v command will create one more file and it occupy the space also.
I need to remove the entire file contents without creating new file using the shell scripting.
Please help me. (5 Replies)
Hey all. I am trying to write some scripts and need some assistance.
One:
I already have a script that appends lines to a file. I need a script that will remove those lines from that file, and have no idea how to go about doing this. Just need the command (if any) that can remove lines.
... (2 Replies)
The file starts like this:
Directory: <path to the script>
Script: <script fife name>
#!bin/ksh
##Comments
<actual script>
What is the use of the first two lines in the script? What if I save the file without them? What will be the effect? They are not comments. Im very new to this,... (4 Replies)
I want to make a config file which contain all the paths.
i want to read the config file line by line and pass as an argument on my below function.
Replace all the path with reading config path line by line and pass in respective functions.
how can i achieve that?
Kindly guide.
... (6 Replies)
Hi All, Looking for a quick LINUX shell script which can continuously monitors the flle size, report the process which is creating a file greater than certain limit and also kill that process. Can someone please help me on this? (4 Replies)
I wish to by pass a process if the file is over a certain size?
not sure this makes sense
current bit of the script below
#if we are bypAssing the OCR
if ; then
echo Bypassing HOTFOLDER OCR
HOT_FOLDER_DIR=$BATCH_POST_OCR_DIR;
potential change below? would this work would I need... (1 Reply)
Hello,
I have a src code file where I need to uncomment many lines.
The lines I need to uncomment look like,
C CALL l_r(DESNAME,DESOUT, 'Gmax', ESH(10), NO_APP, JJ)
The comment is the "C" in the first column. This needs to be deleted so that there are 6 spaces preceding "CALL".... (7 Replies)
Discussion started by: LMHmedchem
7 Replies
LEARN ABOUT DEBIAN
combine
COMBINE(1)COMBINE(1)NAME
combine - combine sets of lines from two files using boolean operations
SYNOPSIS
combine file1 and file2
combine file1 not file2
combine file1 or file2
combine file1 xor file2
_ file1 and file2 _
_ file1 not file2 _
_ file1 or file2 _
_ file1 xor file2 _
DESCRIPTION
combine combines the lines in two files. Depending on the boolean operation specified, the contents will be combined in different ways:
and Outputs lines that are in file1 if they are also present in file2.
not Outputs lines that are in file1 but not in file2.
or Outputs lines that are in file1 or file2.
xor Outputs lines that are in either file1 or file2, but not in both files.
"-" can be specified for either file to read stdin for that file.
The input files need not be sorted, and the lines are output in the order they occur in file1 (followed by the order they occur in file2
for the two "or" operations). Bear in mind that this means that the operations are not commutative; "a and b" will not necessarily be the
same as "b and a". To obtain commutative behavior sort and uniq the result.
Note that this program can be installed as "_" to allow for the syntactic sugar shown in the latter half of the synopsis (similar to the
test/[ command). It is not currently installed as "_" by default, but you can alias it to that if you like.
SEE ALSO join(1)AUTHOR
Copyright 2006 by Joey Hess <joey@kitenet.net>
Licensed under the GNU GPL.
moreutils 2012-04-09 COMBINE(1)