Could someone explain this? I understand that "/^[^ ]/ " grabs all the usernames. and I think I understand the ternary operator; found equals true (1) if name (the username) is found in $1, or found equals false (0) if it's not. Then I get a bit lost, I think !found toggles the value of found, but why? And how does it all end up removing the username and all text between it and the next username.
Hi all,
I am trying to figure out the syntx to delete multiple lines w/ sed. I know the following syntax will delete lines 1 THROUGH 5 from filex:
sed 1,5d filex
But I wan to delete lines 1 AND 5 (keeping lines 2,3, and 4). Does anyone know how to do this in a single sed statement?
... (2 Replies)
Hi,
I need to delete the lines with empty name.
What is the best way to do it?
Thanks a lot for your help!
EMID MMDDYY HOURS JOB EMNAME
0241 051605 11.40 52062 someone
0520 051605 10.63 52062
0520 051605 10.66 52062
0520 051605 10.65 52062 (3 Replies)
can't figure out a way to delete multiple empty lines but keep single empty lines in a file, file is like this
#cat file
1
2
3
4
5
6
-
What I want is
1
2 (6 Replies)
I have been googling, but cannot find that works for me.
I have a text file tmp.out with contents:
sadfsdf sdfosuidhfousdhof soduhf osdfu osudfhosudhfd
sdfgsdfg
asdfiojhsdf asdoludhflsdjfhskldjfhsdjdlfsjdhnlj h sdja
ouahsdjdafkljsa
oljhljh
I have another file... (11 Replies)
Hi,
I'm trying to delete some entry's, the source is a file1, from file2
what I have until now is this
file1 :
68255706,234200801053269,447916926187,8944200006353029289F
73495477,234200101579319,447861769299,8944200006852033303F
file2:
353851164675 NEW : 272050001241889 -ok ... (10 Replies)
The high level requirement is as follows:
I have a file which has multiple line starting with pattern (which is fixed say "Hello"
and i need to search for one more pattern in that line which starts with "Hello" and if the pattern matches, i need to delete lines from that line to the next line... (5 Replies)
I have file with 10000 records and i need to delete the lines in single shot based on line number range say from 10 to 51 , 53 to 59 , 105 to 107, 311 to 592 etc... between range works fine for me but how to achive for above case? please help
sed '10,51 {d}' infile > outfile (5 Replies)
hey guys,
I tried searching but most 'search and replace' questions are related to one liners.
Say I have a file to be replaced that has the following:
$ cat testing.txt
TESTING
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
ENDTESTING
This is the input file: (3 Replies)
GM,
I have an issue at work, which requires a simple solution. But, after multiple attempts, I have not been able to hit on the code needed.
I am assuming that sed, awk or even perl could do what I need.
I have an application that adds extra blank page feeds, for multiple reports, when... (7 Replies)
Hi all,
I'm looking for a way (sed or awk) to delete multiple lines between blank lines containing two patterns ex:
user: alpha
parameter_1 = 15
parameter_2 = 1
parameter_3 = 0
user: alpha
parameter_1 = 15
parameter_2 = 1
parameter_3 = 0
user: alpha
parameter_1 = 16... (3 Replies)
Discussion started by: ce9888
3 Replies
LEARN ABOUT XFREE86
more
MORE(1) User Commands MORE(1)NAME
more - file perusal filter for crt viewing
SYNOPSIS
more [options] file...
DESCRIPTION
more is a filter for paging through text one screenful at a time. This version is especially primitive. Users should realize that less(1)
provides more(1) emulation plus extensive enhancements.
OPTIONS
Options are also taken from the environment variable MORE (make sure to precede them with a dash (-)) but command-line options will over-
ride those.
-d Prompt with "[Press space to continue, 'q' to quit.]", and display "[Press 'h' for instructions.]" instead of ringing the bell when
an illegal key is pressed.
-l Do not pause after any line containing a ^L (form feed).
-f Count logical lines, rather than screen lines (i.e., long lines are not folded).
-p Do not scroll. Instead, clear the whole screen and then display the text. Notice that this option is switched on automatically if
the executable is named page.
-c Do not scroll. Instead, paint each screen from the top, clearing the remainder of each line as it is displayed.
-s Squeeze multiple blank lines into one.
-u Suppress underlining.
-number
The screen size to use, in number of lines.
+number
Start displaying each file at line number.
+/string
The string to be searched in each file before starting to display it.
--help Display help text and exit.
-V, --version
Display version information and exit.
COMMANDS
Interactive commands for more are based on vi(1). Some commands may be preceded by a decimal number, called k in the descriptions below.
In the following descriptions, ^X means control-X.
h or ? Help; display a summary of these commands. If you forget all other commands, remember this one.
SPACE Display next k lines of text. Defaults to current screen size.
z Display next k lines of text. Defaults to current screen size. Argument becomes new default.
RETURN Display next k lines of text. Defaults to 1. Argument becomes new default.
d or ^D Scroll k lines. Default is current scroll size, initially 11. Argument becomes new default.
q or Q or INTERRUPT
Exit.
s Skip forward k lines of text. Defaults to 1.
f Skip forward k screenfuls of text. Defaults to 1.
b or ^B Skip backwards k screenfuls of text. Defaults to 1. Only works with files, not pipes.
' Go to the place where the last search started.
= Display current line number.
/pattern Search for kth occurrence of regular expression. Defaults to 1.
n Search for kth occurrence of last regular expression. Defaults to 1.
!command or :!command
Execute command in a subshell.
v Start up an editor at current line. The editor is taken from the environment variable VISUAL if defined, or EDITOR if
VISUAL is not defined, or defaults to vi if neither VISUAL nor EDITOR is defined.
^L Redraw screen.
:n Go to kth next file. Defaults to 1.
:p Go to kth previous file. Defaults to 1.
:f Display current file name and line number.
. Repeat previous command.
ENVIRONMENT
The more command respects the following environment variables, if they exist:
MORE This variable may be set with favored options to more.
SHELL Current shell in use (normally set by the shell at login time).
TERM The terminal type used by more to get the terminal characteristics necessary to manipulate the screen.
VISUAL The editor the user prefers. Invoked when command key v is pressed.
EDITOR The editor of choice when VISUAL is not specified.
SEE ALSO less(1), vi(1)AUTHORS
Eric Shienbrood, UC Berkeley
Modified by Geoff Peck, UCB to add underlining, single spacing
Modified by John Foderaro, UCB to add -c and MORE environment variable
HISTORY
The more command appeared in 3.0BSD. This man page documents more version 5.19 (Berkeley 6/29/88), which is currently in use in the Linux
community. Documentation was produced using several other versions of the man page, and extensive inspection of the source code.
AVAILABILITY
The more 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 February 2014 MORE(1)