GFAL-SUM(1)

💖 GFAL-SUM 💖

okay so bestie, welcome to gfal-sum(1) from the General Commands Manual — it's the little tool that goes ✨ checksum ✨ on your files and honestly? she ate.

🌸 NAME 🌸

gfal-sum — calculate checksum of a file 🧮

🎀 SYNOPSIS 🎀

gfal-sum [ OPTION ] FILE CHECKSUM_TYPE

✨ DESCRIPTION ✨

So basically, gfal-sum calculates the checksum of the file you point it at, using whatever checksum algorithm you tell it to use. That's it, that's the whole vibe. 🦋

The supported algorithms depend on the protocol and the endpoint, so it's giving "your mileage may vary" energy. Some examples of algorithms you might get are ADLER32, CRC32 and MD5. 👑

💅 OPTIONS 💅

• -h, --help — show help about the command. ur lil safety net 🫶
• -V, --version — output version information and exit. she's brief, she's iconic 💖
• -v, --verbose — verbose mode. Repeat up to 3 times for the most verbose mode. yes bestie, stack her up 📚
• -D, --definition DEFINITION — define properties for gfal2. Definitions have the following syntax: "CONFIG_GROUP:KEY=VALUE" 🔧
• -t, --timeout TIMEOUT — global timeout for the execution of the command. Command is interrupted if time expires before it finishes. Note: A grace period of 30 seconds is given to the global timeout. ⏰ (so she's got a lil 30s cushion, no cap)
• -E, --cert CERT — user certificate. (This option takes effect only after X509_USER_PROXY environment variable and default /tmp/x509up_uid -u`` location cannot provide a certificate) 🔐
• --key KEY — user private key. 🔑
• -4 — forces Gfal2 to use IPv4 addresses only. (Option valid only for GridFTP protocol)
• -6 — forces Gfal2 to use IPv6 addresses only. (Option valid only for GridFTP protocol)
• -C, --client-info CLIENT_INFO — provide custom client-side information. 📝
• --log-file LOG_FILE — write Gfal2 library logs to the given file location. 📂

bestie note: -4 and -6 are only valid for the GridFTP protocol, so don't come for me if they're a no-op elsewhere 🙈

🌈 EXAMPLES 🌈

gfal-sum srm://endpoint.cern.ch/path/file ADLER32

she's calculating an ADLER32 checksum on a file sitting at an SRM endpoint. slay. 🔥

🍓 FILES 🍓

• /etc/gfal2.d/* — All configuration files in this directory affect the behavior of the underlying gfal2. 👀

🧚 AUTHORS 🧚

• Duarte Meneses <duarte.meneses@cern.ch>
• Adrien Devresse <adrien.devresse@cern.ch>
• Alejandro Alvarez Ayllon <alejandro.alvarez.ayllon@cern.ch>
• Andrea Manzi <andrea.manzi@cern.ch>
• Mihai Patrascoiu <mihai.patrascoiu@cern.ch>
• Joao Lopes <joao.pedro.batista.lopes@cern.ch>

the whole squad fr fr 💜

👑 SEE ALSO 👑

gfal-cat(1), gfal-chmod(1), gfal-copy(1), gfal-ls(1), gfal-mkdir(1), gfal-rename(1), gfal-rm(1), gfal-save(1), gfal-stat(1), gfal-sum(1), gfal-token(1), gfal-xattr(1), gfal-evict(1), gfal-bringonline(1), gfal-archivepoll(1)

and that's the whole page, bestie!! this one's from v1.7.1, dated March 2022 — she's a lil vintage but she still serves. go checksum something, ily, mwah 💖✨🎀🦋🌸💅🫶