Various UNIX shell commands for programming, env and system management. Those commends are helpful, to me, but not often used. I had made this sheet to avoid periodically searching another time for the same thing.
sshfs [USER@HOST]:[remote_directory] mountpoint [options] |
mount remote drive in
mountpoint |
ssh -o ServerAliveInterval=X -o ServerAliveCountMax=Y [HOST] |
Maintaing ssh conection for
X seconds and Y tries |
ssh-copy-id -i ~/.ssh/id_rsa [USER@HOST] |
add autentication via ssh, not
.pub file |
autossh -N -f -L localhost:[PORTU]:localhost:[PORTR] [USER@HOST] |
map local port
PORTU to PORTR on USER@HOST with autoreconnect |
cp -r $(<file_listed.txt) outdir |
copies files & directories listed in
file_listed.txt to outdir |
xargs -a file_listed.txt cp -r -t outdir |
same as above
|
tar -(v)czf file.tar.gz /path/to_compres |
create
-cf archive -xf for extract |
unzip file.zip -d file |
unzip
file.zip to file directory (must exists before) |
mkdir -p dir |
make parent directories as needed, no error
|
rm -r !(*.ext) |
delete everything except files with extension
.ext |
du -hs dir |
check size of dir use
-h for GB or -m for MB |
basename path/basename.ext .ext |
get
basename from path without ext |
grep -i -r -E 'pattern1|pattern2|pattern3' |
multiple patterns with
grep -i case insensitive -r recursive |
find PATH -(i)name "pattern" -type d/f |
list
f files or d directories with matching pattern in specified PATH |
while read line; do [Command] done < input.file |
Loop over file content
|
for file in ./*.extention; do [Command] done |
loop over files in directory
|
if test -f file.txt; then [Command] fi |
check if file exists
-f , -d for directory |
if [-f file.txt]; then [Command] fi |
same different syntax
|
if [ -z "$S1" ]; then fi |
checks if arg
$1 is empty |
function function_name { <commands> } |
function declaration,
$1 $2 - argument names |
"$?" |
return exit status from last command
|
$(expr) |
evaluate
expr and store/print it's result |
cat /proc/cpuinfo #or lscpu |
cpu informations
|
uname -a |
OS informations
|
ss -tpln |
show forwarded ports
|
lsblk -S |
list block devices
-S for minimal view |
dd if=/path/to/image.iso of=/drive/location bs=4M && sync |
create bootable drive from
image.iso |
sudo mount [drive] [mountpoint] |
mounts
drive at mountpoint |
kill -9 $(pgrep -f [pattern]) |
terminate all processes matching
pattern |
printenv |
print all env variables
|
git rm -r --cached <path/file.ext> |
remove untracked files
|
git clean -d -(n/f) |
remove undone changes add:
-n to show files to remove or -f to remove them |
git fetch --all [branch_name] |
copies all changes from last pull/clone on current branch or given
branch name |
git log --not --remotes |
all commits on all branches that aren't pushed yet
|
git checkout -b <new_branch> |
change & create new branch
|
git switch -c <new_branch> |
same as above
|
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