File permission

Example 1:

Use Python to remove write permission for group and other, for a given file: Remove-group-other-write-permission.py

Set write permission for group chmod g+w nowrite.test

Remove write permission for group/other: python Remove-group-other-write-permission.py nowrite.test nowrite.test no write permission for group

Sanity check: ls -l total 16 -rwxr-xr-x@ 1 emelinefavreau staff 455 23 May 10:52 Remove-group-other-write-permission.py -r--r--r-- 1 emelinefavreau staff 0 23 May 10:27 nowrite.test -rwxr-xr-x@ 1 emelinefavreau staff 664 23 May 10:24 print-write-permission.py -rw-r--r-- 1 emelinefavreau staff 0 23 May 10:04 test.txt

Example 2:

Use Python to print permission of a file: print-write-permission.py

Print write permission is present (True) or not (False) for a given file python print-write-permission.py test.txt test.txt => True

python print-write-permission.py nowrite.test nowrite.test => False

Sanity check: ls -l total 8 -r--r--r-- 1 emelinefavreau staff 0 23 May 10:27 nowrite.test -rwxr-xr-x@ 1 emelinefavreau staff 664 23 May 10:24 print-write-permission.py -rw-r--r-- 1 emelinefavreau staff 0 23 May 10:04 test.txt

Example 3:

Use cron to automate small useful recurrent jobs: cron-tips.md

Scheduling jobs

Submit a simple script on HPC

gzip-my-file.sh

Copying data across

Copying files onto HPC with checksum

copying-files-onto-hpc.md

Copying data across

Setting up a clicky-pointy version of the HPC for visualizing BAM files with IGV

visualise-BAM-files-on-IGV.txt