WebJan 19, 2014 · sed -i 'line# s/#to be changed/#to be replaced with/ filename but to get to the file in each directory I am using an if statement as Code: for i in {dir1,dir2,...,dir9} do cd $i if [ "$i" == "dir1" ] ; then sed -i 'line# s/0/1/ filename else if [ "$i" == "dir2" ] ; then sed -i 'line# s/0/2/ filename else if ... upto dir9 fi cd .. done WebJan 15, 2024 · In order to set variable in csh you need to use set ( more info) As …
Sed - An Introduction and Tutorial - Grymoire
http://www.faqs.org/faqs/unix-faq/shell/csh-whynot/ WebMay 13, 2024 · But users of [t]csh know that it doesn’t allow variable = value you have to say set variable = value or @ variable = expr Of course a simple integer constant is a valid expr, so the author may simply be using @ instead of set because it’s shorter and they know that the value is an integer. cubed root of 170
【sed / awk / grep】文字列の置換・抽出・検索と正規表現 Linux …
WebJun 3, 2015 · Normally commands can be separated by a ; e.g. /foo/d;/bar/d and grouped by {... } e.g. /foo/ {h;d} but for the i,a,c commands the -e provides a way of separating the commands. The alternative is to use the shell (bash) to insert a newline: sed '/foo/i\bar'$'\n''/fred/a\barney'$'\n''/harry/c\potter' file Share Improve this answer Follow WebMay 23, 2011 · Sed matches entire lines but doesn't include the newline, so a blank line … WebNov 17, 2024 · The sed command is a stream editor that works on streams of characters. It’s a more powerful tool than grep as it offers more options for text processing purposes, including the substitute command, which sed is most commonly known for. 5.1. Basic Syntax. The sed command has the following general syntax: east chicago indiana wic office