11-22-2013
Non-linux users are unlikely to have -B.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
How do i Print anything after a ':'
Ex :
file1: 1235131(rs32553)
I want to print out "1235131(rs32553)"
how do i do it. I know we can do this using awk but looking for the right syntax.
Any help appreciated.
Thanks,
Ram (7 Replies)
Discussion started by: ramky79
7 Replies
2. UNIX for Dummies Questions & Answers
Good Day,
Im new to scripting especially awk and sed. I just would like to ask help from you guys about a sed command that prints the line immediately after a regexp, but not the line containing the regexp.
sed -n '/regexp/{n;p;}' filename
What if my regexp is 3 word or a sentence. Im... (3 Replies)
Discussion started by: ownins
3 Replies
3. Shell Programming and Scripting
I am on a Solaris 10 x86 system
sample code
before3
before2
before1
group
after1
after2
after3
I want to grab the second line above my regexp
regexp=group
I want to grab ONLY the before2 line
I have numerous sed and awk ways of grabbing X line below the regexp, but no luck... (1 Reply)
Discussion started by: snoman1
1 Replies
4. Shell Programming and Scripting
Hi all,
This should be very easy but I can't figure it out...
I have a file that looks like this:
@SRR057408.1 FW8Y5CK02R652T length=34
AGCAGTGGTATCAACGCAGAGTAAGCAGTGGTAT
+SRR057408.1 FW8Y5CK02R652T length=34
FIIHFF6666?=:88@@@BBD:::?@ABBAAA>8
@SRR057408.2 FW8Y5CK02TBMHV length=52... (1 Reply)
Discussion started by: kmkocot
1 Replies
5. Shell Programming and Scripting
Hi,
I have a file, say files_list, as below (o/p of ls -R cmd)
$ cat files_list
/remote/dir/path/to/file:
sub-dir1
sub-dir2
sub-dir3
...
/remote/dir/path/to/file/sub-dir1:
remote_file1.csv.tgz
<blank line 1>
/remote/dir/path/to/file/sub-dir2:
remote_file2.csv.tgz
<blank... (3 Replies)
Discussion started by: dips_ag
3 Replies
6. Shell Programming and Scripting
Hello all
According to the following file (orignal one contains 200x times the same structure...) I was wondering if someone could help me to print <byte>??</byte> values
example, running this script/command like
./script.sh xxapp
I would expect as output: 102 116 112
./script.sh xxapp2... (2 Replies)
Discussion started by: cabrao
2 Replies
7. Shell Programming and Scripting
Hi All
I'm trying to extract the line just above a regexp and all lines after this.
I'm currently doing this in two steps
sed -n -e "/^+---/{g;p;}" -e h oldfile.txt > modified.txt
sed -e "1,/^+---/d" -e "/^$/d" oldfile.txt >>modified.txt
Sample
sometext will be here
sometext will be... (3 Replies)
Discussion started by: Celvin VK
3 Replies
8. Shell Programming and Scripting
How to use regexp to print out repetitive pattern in awk?
$ awk '{print $0, "-\t-\t-\t-\t-\t-\t-\t-\t-\t-\t-\t-"}' output:
- - - - - - - - - - - -I tried following which does not give what I want, of course.
awk '{print $0, "-\t{11}-"}'
output:
- ... (10 Replies)
Discussion started by: yifangt
10 Replies
9. Shell Programming and Scripting
im trying to get
awk to print the string between 3rd and 4th backslashs to end of line
test could be any word
this
http://example.com/test/ >to this
http://example.com/test/ > testalso the other way round insert string at end of line... (13 Replies)
Discussion started by: bob123
13 Replies
10. UNIX for Beginners Questions & Answers
Hi All,
I need to print the characters in the previous line just before the regular expression match
Please have a look at the input file as attached
I need to match the regular expression ^ with the character of the previous like and also the pin numbers
and the output file should be like... (6 Replies)
Discussion started by: kshitij
6 Replies
WALL(1) User Commands WALL(1)
NAME
wall - write a message to all users
SYNOPSIS
wall [-n] [-t timeout] [-g group] [message | file]
DESCRIPTION
wall displays a message, or the contents of a file, or otherwise its standard input, on the terminals of all currently logged in users.
The command will wrap lines that are longer than 79 characters. Short lines are whitespace padded to have 79 characters. The command will
always put a carriage return and new line at the end of each line.
Only the superuser can write on the terminals of users who have chosen to deny messages or are using a program which automatically denies
messages.
Reading from a file is refused when the invoker is not superuser and the program is set-user-ID or set-group-ID.
OPTIONS
-n, --nobanner
Suppress the banner.
-t, --timeout timeout
Abandon the write attempt to the terminals after timeout seconds. This timeout must be a positive integer. The default value is
300 seconds, which is a legacy from the time when people ran terminals over modem lines.
-g, --group group
Limit printing message to members of group defined as a group argument. The argument can be group name or GID.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
NOTES
Some sessions, such as wdm, that have in the beginning of utmp(5) ut_type data a ':' character will not get the message from wall. This is
done to avoid write errors.
SEE ALSO
mesg(1), talk(1), write(1), shutdown(8)
HISTORY
A wall command appeared in Version 7 AT&T UNIX.
AVAILABILITY
The wall command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-
linux/>.
util-linux August 2013 WALL(1)