You need to include the following lines in your docker-compose.yml: version: “3” services: app: image: app:1.2.3 stdin_open: true # docker run -i tty: true # docker run -t The first corresponds to -i in docker run and the second to -t.
You need to use the -F option: -F/–form <name=content> Specify HTTP multipart POST data (H) Try this: curl \ -F “userid=1” \ -F “filecomment=This is an image file” \ -F “image=@/home/user1/Desktop/test.jpg” \ localhost/uploader.php
When the shell sees > index.html in the command line it opens the file index.html for writing, wiping off all its previous contents. To fix this you need to pass the -i option to sed to make the changes inline and create a backup of the original file before it does the changes in-place: sed … Read more
In Bash, you should get what you need like this: #!/usr/bin/env bash BASEDIR=$(dirname “$0”) echo “$BASEDIR”
You have to pass the -np/–no-parent option to wget (in addition to -r/–recursive, of course), otherwise it will follow the link in the directory index on my site to the parent directory. So the command would look like this: wget –recursive –no-parent http://example.com/configs/.vim/ To avoid downloading the auto-generated index.html files, use the -R/–reject option: wget … Read more
In cross-platform, lowest-common-denominator sh you use: #!/bin/sh value=`cat config.txt` echo “$value” In bash or zsh, to read a whole file into a variable without invoking cat: #!/bin/bash value=$(<config.txt) echo “$value” Invoking cat in bash or zsh to slurp a file would be considered a Useless Use of Cat. Note that it is not necessary to … Read more
Also worth mentioning: tac (the, ahem, reverse of cat). Part of coreutils. Flipping one file into another tac a.txt > b.txt
Bit of awk should do it? awk ‘{s+=$1} END {print s}’ mydatafile Note: some versions of awk have some odd behaviours if you are going to be adding anything exceeding 2^31 (2147483647). See comments for more background. One suggestion is to use printf rather than print: awk ‘{s+=$1} END {printf “%.0f”, s}’ mydatafile
If Machine A is a Windows box, you can use Plink (part of PuTTY) with the -m parameter, and it will execute the local script on the remote server. plink root@MachineB -m local_script.sh If Machine A is a Unix-based system, you can use: ssh root@MachineB ‘bash -s’ < local_script.sh You shouldn’t have to copy the … Read more
To remove the line and print the output to standard out: sed ‘/pattern to match/d’ ./infile To directly modify the file – does not work with BSD sed: sed -i ‘/pattern to match/d’ ./infile Same, but for BSD sed (Mac OS X and FreeBSD) – does not work with GNU sed: sed -i ” ‘/pattern … Read more