[*] Provisos and assumptions: OP mentions needing to process multiple files; for this answer I’m going to focus on a single file; OP can start another question if issues arise with a multi-file solution OP mentions wanting to replace some strings but it’s not clear (to me) if the original file is to be overwritten … Read more
XSLT based solution. Input XML <config> <connection port=”4404″ type=”tcp”> <selection name=”test-mode” enabled=”true”/> </connection> <connection port=”4405″ type=”tcp”> <selection name=”test-mode” enabled=”true”/> </connection> <connection port=”4406″ type=”tcp”> <selection name=”test-mode” enabled=”true”/> </connection> <option> <maxNumberOfDownloads>10</maxNumberOfDownloads> </option> </config> XSLT <?xml version=”1.0″?> <xsl:stylesheet version=”1.0″ xmlns:xsl=”http://www.w3.org/1999/XSL/Transform”> <xsl:output method=”xml” encoding=”utf-8″ indent=”yes” omit-xml-declaration=”yes”/> <xsl:strip-space elements=”*”/> <xsl:template match=”@*|node()”> <xsl:copy> <xsl:apply-templates select=”@*|node()”/> </xsl:copy> </xsl:template> <xsl:template match=”connection[@port]”> <xsl:copy> <xsl:apply-templates … Read more
If i understand your question “executable” is a file with execute permission. The execute permission grants the ability to execute the file. You can set the execute permission with chmod, for example: nano script.sh // your script chmod +x script.sh ./script.sh In the first line I create the file using nano (i choose nano because … Read more
Using perl from command line, perl -ne ‘push @r, $_; print(@r[2,1,0,3]), @r=() if @r==4 or eof’ file solved Swap lines in a script by iteration over lines [closed]
Use printf() instead of print, as it doesn’t automatically add a newline. Then you can put a literal \n in the output. I’ve put this in a variable so I don’t put it before the first line, only all subsequent lines. Use BEGIN and END blocks to print quotes around it. ssh udcl804 aggr show … Read more
The following lines of code in your program aren’t C at all. They look like a fragment of shell script: lcd_command(LINE_3); {while true; do ping -c1 192.168.10.30 2>&1 /dev/null; //VPN IP lcd_writechars(“STS300”);} {if [[ ! $? ]]; then lcd_writechars(“VPN Lost”); fi; sleep 10; } This won’t work. Rewrite this code in C. (The system() function … Read more
You should store the result in a variable like this: result=$((operand1+operand2)) Then your first if statement can check if this variable has a value, and if it does, skip the read and use it instead. if [[ $result == “” ]]; then echo Enter operand1 value: read operand1 else operand1=$result echo “Operand 1 is: $result” … Read more
something like this? kent$ awk ‘/^key.:/{p=1}/^name:/{p=0} {if(p)printf “%s”,$0;else printf “%s%s\n”, (NR==1?””:RS),$0}’ file name: charles key1: howareyou? name: erika key2: I’mfine,thanks name: … handle the spaces: awk ‘/^key.:/{p=1}/^name:/{p=0} {if(p)printf “%s%s”,(/^key.:/?””:” “),$0; else printf “%s%s\n”, (NR==1?””:RS),$0}’ file output: name: charles key1: how are you? name: erika key2: I’m fine, thanks name: … 2 solved Remove newlines between … Read more
Quotes fix everything: while read line do IFS=’:’ read -ra ADDR <<< “$line” echo ${ADDR[0]} echo ${ADDR[1]} done < file.txt Quoting the variable “$line” is what made the difference. If you’re not getting the line with “C:c”, it’s probably because your file is missing a final newline. solved Array from a file
Following awk could help you in same. awk ‘{print > NF”column.txt”}’ Input_file Output it will create 3 files named 5column.txt, 4column.txt and 3column.txt. solved awk or sed extract each number of column alone
The Bash shell searches the directories listed in the PATH variable in both shellscript and . shellscript cases. The main difference is that when using . (or equivalently source) to start a script, a new shell process is not created for interpreting the script. This is sometimes useful because it allows the script to define … Read more
This is a simple code to execute the shell script and read its output: import java.io.*; public class Test { public static void main(String[] args) throws Exception { String[] command = { “./flows.sh”, “suspend” }; Process process = Runtime.getRuntime().exec(command); BufferedReader reader = new BufferedReader(new InputStreamReader( process.getInputStream())); String s; while ((s = reader.readLine()) != null) { … Read more
In Groovy variable/expression substitution inside of strings (interpolation) only works with certain types of string literal syntax. Single quote syntax (‘content’) is not one of them. However, if you replace the outer single quotes with double quotes (“content”) then you should get the interpolation effect you are looking for: def sDescription = “foo” def sedCommand … Read more
When you use ls, you are reading a directory file, not actually looking in a directory. Every directory listing contains an entry for the present/current directory, as well as its parent directory, just as you would expect to also see listings for sub/child directories in any directory listing. The -A option for ls merely tells … Read more
Like this (taking one for the team :)? Using awk (Notice: it creates files like Abc 1:2 or whatever is between <b> and <sup>): $ awk ‘ BEGIN { FS=”<sup>” # split at this delimiter } { if($1==p) { # if first part equals first part of previous split b=b ” ” $0 # append … Read more