I don’t know C++/CLI, but the following statement is certainly wrong: _FtpWebRequest->Method = System::Net::WebRequestMethods::Ftp.UploadFile; System::Net::WebRequestMethods::Ftp is a type and, as the error message indicates (you could have given us the line number!) you’re trying to use it as an expression. Are you trying to obtain a pointer to a static member function? Did you thus … Read more
The line: a[i] = strtok(s,” “); sets a[i] to a pointer within the string, which you’re modifying and which may eventually have the temporary NUL characters (from strtok) removed. You may want to try: a[i] = strdup (strtok (s,” “)); instead. Let me explain further. Say we have the command (as it exists in memory): … Read more
<(command) is a bashism called Process substitution You have to run your script with bash, eg do bash script.bash Or if you want to use sh, you could write the results to a file, like this : grep eth0 /proc/net/dev > file1 sleep 1 ; grep eth0 /proc/net/dev > file2 diff file1 file2 7 solved … Read more
So first you should know that this is two commands – pwd and sed -e “s#/survey1##” – and these two commands are being run together in a pipeline. That is, the output of the first command is being sent to the second command as input. That is, in general, what | means in unix shell … Read more
Your third argument (a[2]) has a newline character at the end. ls thus complains that it can’t find a directory named with a single newline character under your home directory. Fix your command parsing to not include the newline. 3 solved making a shell with C
The algorithm to sort this problem is simple, just like you said in your question description, sort characters in each word first, then sort these sorted-word again. Like this: $ echo heya64 this is21 a good89 day91 | perl -anE ‘say(join ” “, sort(map { join “”, sort split // } @F))’ 12is 19ady 46aehy … Read more
It can be done pretty easily using Awk, just do the below to store the contents in a bash array. read -p “Enter object to get properties for: ” objectname all_properties=($(awk -F ‘=’ -v input=”${objectname}” ‘$1 ~ input{flag=1; next} $1 ~ /\[object/{flag=0; next} flag && NF {split($0,arr,”=”); print arr[2] } config.ini)) Now loop the array … Read more
cat file1 1 10.0 2 12.1 3 5.2 4 13.0 cat file2 15 11.1 10 12.3 17 2.1 12 15.5 11 7.0 command : awk -f script.awk file2 file1 script.awk #! /bin/awk -f function abs(val) { return val < 0 ? -val : val } ARGV[1] == FILENAME{ a[$1] = $2; } ARGV[2] == FILENAME{ … Read more
Probably you want it to run at the time of login. Put it in .bashrc If you want to see it before login to tty0-tty6, put the text “Welcome Davide, have a nice day” in /etc/issue. [Adition by fedorqui]: If you want it to be displayed on tty0-6 AFTER login, put it in /etc/motd. This … Read more
I understand this is more a conceptual question. Two simplest methods that come into mind are: 1) Use a “flag file” that you create from the shell script. When the file exists, it means the script is done. When there’s no file, the script still runs. Or other way around. That’s common method for shell … Read more
sed is your friend. The result can be stored in a new file. Give a try to this tested command below: sed s/,/\’,\’/ file.txt > result.txt The sed man page contains information. The test output: $ cat input.txt apple,orange,house foo,bar,woops $ sed s/,/\’,\’/ input.txt > result.txt $ cat result.txt apple’,’orange,house foo’,’bar,woops solved Replacing first occurrence … Read more
You can use awk like this: awk ‘FNR==NR{a[substr($2,1,3)];next} substr($2,1,3) in a’ file1 file2 9 132185894 132209127 DUP 99 23234 3 solved How to find first three digits matching pattern from a single column between two text files [closed]
Here is a solution that requires no subshell or external program, does not parse ls output (which is not recommended), and should work with filenames containing spaces (or even newlines). You can customize your prefix and extension. #!/bin/bash dir=”/path/to/files” prefix=”backup#” ext=”.tar.gz” max=1 for file in “$dir/$prefix”* do [[ $file =~ /$prefix([0-9]+)$ext$ ]] || continue n=”${BASH_REMATCH[1]}” … Read more
Another way with awk: $ awk ‘{print s+=$1}’ file 2 6 13 10 15 13 solved Output subtotal at each line while adding up numbers, one per line
This should do the trick: #!/bin/bash INPUT=”$@” SIZE=${#INPUT} for ((i=0; i < ${SIZE}; i++)); do echo “${INPUT}” INPUT=”${INPUT:0:${i}} ${INPUT:$((i+1)):${SIZE}}” #INPUT=”$(echo “$INPUT” | sed “s/^\(.\{${i}\}\)./\1 /”)” done I added a sed option in the comment, although it creates a sub-process when you don’t really have to. 0 solved Linux ‘cut’ command line and replace