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command line


Warning! This is a draft, not a finalized post. See full draft disclosure.

Curl Examples Posting Data and Displaying Headers

Last updated on October 1, 2019 by Sal Ferrarello

Curl is a fantastic tool for making web requests from the command line. As a developer, I find this tool particularly useful. Retrieve Content at a URL curl https://salferrarello.com/ Making a HEAD Call Sometimes, we want to see the Header Values returned from a URL using the HEAD. The HTTP HEAD method requests the headers […]

Filed Under: Dev Tips, Draft Tagged With: command line, curl


Warning! This is a draft, not a finalized post. See full draft disclosure.

Git Previous Branch

Last updated on February 11, 2019 by Sal Ferrarello

When working with Git on the command line, I spend a lot of time switching back and forth between two branches. Even with Git tab completion, it is a lot of typing. However Git has a shortcut for the previous branch, a single dash (-).

Filed Under: Computing, Dev Tips, Draft, Recommendations Tagged With: command line, Git


Warning! This is a draft, not a finalized post. See full draft disclosure.

Curl Get Redirect

Last updated on September 25, 2018 by Sal Ferrarello

When creating 301 redirects, I often want to check multiple URLs quickly from the command line (to avoid the manual clicking in the browser and browser caching of results). I’ve written this script to speed up my process.

Filed Under: Dev Tips, Draft, Solution Tagged With: command line, curl, redirects


Warning! This is a draft, not a finalized post. See full draft disclosure.

grep inside gzipped files

Last updated on September 24, 2018 by Sal Ferrarello

When faced with a folder full of gzipped files, I found I was unable to use my usual go to program grep to search for text in the files. However, zgrep came to my rescue.

Filed Under: Draft, Solution Tagged With: command line, grep, gzip


Warning! This is a draft, not a finalized post. See full draft disclosure.

DIG and WHOIS returning different name servers

Last updated on August 27, 2018 by Sal Ferrarello

You can look up the name servers associated with a domain name using either “whois” or “dig NS”. In some rare occasions, I have gotten back two different answers using these two techniques. In my experience, “dig NS” is the more trustworthy of the two.

Filed Under: Dev Tips, Draft Tagged With: command line, DNS, network


Warning! This is a draft, not a finalized post. See full draft disclosure.

Generate SSH Key Pair

Last updated on September 30, 2019 by Sal Ferrarello

Using SSH keys allows greater security than a password when remoting into a machine, using SFTP, or WP CLI on a remote machine – however, they do require more work to setup. For security reasons, I generate a new key pair for each site I work on. To generate a new key pair I do the following.

Filed Under: Dev Tips, Draft Tagged With: command line, ssh

Screenshot o Mac application Activity Monitor
Warning! This is a draft, not a finalized post. See full draft disclosure.

Activity Monitor find App behind Process Name

Last updated on July 30, 2018 by Sal Ferrarello

When working on my Mac, sometimes I find a process in Activity Monitor and I want to know what application the process belongs to. I was introduced to this command to do just that.

Filed Under: Computing, Dev Tips, Draft, Solution Tagged With: command line


Warning! This is a draft, not a finalized post. See full draft disclosure.

License for my Open Source Software

Last updated on August 27, 2019 by Sal Ferrarello

These are my reminder notes on how to quickly populate the LICENSE information for one of my projects from the command line.

Filed Under: Draft, Programming, Recommendations Tagged With: command line


Warning! This is a draft, not a finalized post. See full draft disclosure.

Git Target Commit by Message

Last updated on June 11, 2018 by Sal Ferrarello

There are lots of ways to target a git commit and one way that I often forget to use (but really like it when I remember) is targeting a specific git commit by the commit message.

Filed Under: Dev Tips, Draft, Solution Tagged With: command line, Git


Warning! This is a draft, not a finalized post. See full draft disclosure.

Checksum on Mac OS X Command Line

Last updated on June 11, 2018 by Sal Ferrarello

The checksum is like a fingerprint for the file. A file is processed through a known algorithm which results in the checksum, a.k.a “hash”, which is a string of letters and numbers unique to that file, e.g. 8ab686eafeb1f44702738c8b0f24f2567c36da6d. If the file is modified, the resulting checksum will be different. This allows a quick way to […]

Filed Under: Computing, Dev Tips, Draft, Solution Tagged With: command line

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