04-04-2017
it works but I don't understand why
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1. UNIX for Dummies Questions & Answers
Is there way to use sed to change only one occurence in a colon separated line?
I would like to change a file from
*:*:rex:rex
*:*:simon:rex
to
*:*:rex:mabry
*:*:simon:rex (2 Replies)
Discussion started by: rexmabry
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2. Shell Programming and Scripting
$ cat log.txt
Name Age Sex Lcation nfld alias xsd
CC 25 M XYZ asx KK Y
BB 21 F XAS awe SS N
SD 21 M AQW rty SD A
How can I replace the column with header "Lcation" with the column with header "alias" and delete the "alias" column?
so that the final output will become:
Name Age Sex... (10 Replies)
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Hi all,
I am trying to search for a keyword in the fourth column of a massive carrot(^) delimited file and unfortunately I cannot use AWK (which would have been ideal). Can SED (or maybe even GREP) perform a search like this? (12 Replies)
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4. UNIX for Dummies Questions & Answers
Is it possible to make changes with the sed command in a specific column only?
If yes, how?
If not, how could I do that instead?
Thanks!
---------- Post updated at 02:01 PM ---------- Previous update was at 01:39 PM ----------
e.g.
Group1 Group2_3_1 1_2_3_4_5_
I would like... (8 Replies)
Discussion started by: danieladna
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5. Shell Programming and Scripting
FILE A:
9780743551526,(Abridged)
9780743551779,(Unabridged)
9780743582469,(Abridged)
9780743582483,(Unabridged)
9780743563468,(Abridged)
9780743563475,(Unabridged)
FILE B:
c3saCandyland 9780743518321 "CANDYLAND" "MCBAIN, ED" 2001
c3sbCandyland 9780743518321 ... (7 Replies)
Discussion started by: glev2005
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6. Shell Programming and Scripting
I am using the command ls -lhB --group-directories-first --no-group --file-type --time-style=+%D $@ | sed 's/AlphaLexman/ALM/g' to replace my username with my initials (to keep the width shorter), but if my username is in the filename such asreport_by_AlphaLexman.txtit becomesreport_by_ALM.txt
... (2 Replies)
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7. UNIX for Dummies Questions & Answers
Hi,
i want to display only the particular column using SED command.
For example,
ps -ef|grep ash |sed -n '1p'|cut -d ' ' -f2
this gives 29067
ps -ef|grep ash |sed -n '1p'|awk '{print $2}'
this also gives the same
in the same way i need the solution using sed.
Please... (4 Replies)
Discussion started by: pandeesh
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8. Shell Programming and Scripting
Hey folks. I wrote a little awk script that summarizes /proc/net/dev info and then pipes it to the nix column command to set up column spacing appropriately.
Here's some example output:
Iface RxMBytes RxPackets RxErrs RxDrop TxMBytes TxPackets TxErrs TxDrop
bond0 9 83830... (3 Replies)
Discussion started by: ryran
3 Replies
9. Shell Programming and Scripting
input
"A","B","C,D","E","F"
"S","T","U,V","W","X"
"AA","BB","CC,DD","EEEE","FFF"
required output:
"A","B","C,D","C,D","F"
"S", T","U,V","U,V","X"
"AA","BB","CC,DD","CC,DD","FFF"
tried using awk but double quotes not preserving for every field. any help to solve this is much... (5 Replies)
Discussion started by: khblts
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10. UNIX for Beginners Questions & Answers
Hi All ,
I am having an input file as stated below
Input file
6 ddk/djhdj/djhdj/Q 10 0.5
dhd/jdjd.djd.nd/QB 01 0.5
hdhd/jd/jd/jdj/Q 10 0.5
512 hd/hdh/gdh/Q 01 0.5
jdjd/jd/ud/j/QB 10 0.5
HD/jsj/djd/Q 01 0.5
71 hdh/jjd/dj/jd/Q 10 0.5
... (5 Replies)
Discussion started by: kshitij
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LEARN ABOUT REDHAT
column
COLUMN(1) BSD General Commands Manual COLUMN(1)
NAME
column -- columnate lists
SYNOPSIS
column [-tx] [-c columns] [-s sep] [file ...]
DESCRIPTION
The column utility formats its input into multiple columns. Rows are filled before columns. Input is taken from file operands, or, by
default, from the standard input. Empty lines are ignored.
The options are as follows:
-c Output is formatted for a display columns wide.
-s Specify a set of characters to be used to delimit columns for the -t option.
-t Determine the number of columns the input contains and create a table. Columns are delimited with whitespace, by default, or with
the characters supplied using the -s option. Useful for pretty-printing displays.
-x Fill columns before filling rows.
Column exits 0 on success, >0 if an error occurred.
ENVIRONMENT
COLUMNS The environment variable COLUMNS is used to determine the size of the screen if no other information is available.
EXAMPLES
(printf "PERM LINKS OWNER GROUP SIZE MONTH DAY HH:MM/YEAR NAME
"
; ls -l | sed 1d) | column -t
SEE ALSO
colrm(1), ls(1), paste(1), sort(1)
HISTORY
The column command appeared in 4.3BSD-Reno.
BSD
June 6, 1993 BSD