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linux-commandline-tips [2018/11/13 14:15] serbizadmin |
linux-commandline-tips [2020/08/29 23:47] (current) serbizadmin [Find Stuff] |
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| - | | + | ~~NOTOC~~ |
| + | ====== Find Stuff====== | ||
| + | | ||
| < | < | ||
| fdupes --recurse dir1/ dir2/ </ | fdupes --recurse dir1/ dir2/ </ | ||
| - | * find a word in a file | + | * find a **word** in a file |
| < | < | ||
| grep -rnw '/ | grep -rnw '/ | ||
| + | * find all **socket** files your system runs | ||
| + | < | ||
| + | find / -type s | ||
| + | </ | ||
| + | * find the latest file in a folder/ | ||
| + | < | ||
| + | find . -type f -printf '%T@ %P\n' | sort -n | awk ' | ||
| + | </ | ||
| + | * show files greater than 1G | ||
| + | < | ||
| + | du -h * | grep ' | ||
| + | </ | ||
| + | Change ' | ||
| + | ====== Differences====== | ||
| + | * between files, showing side by side | ||
| + | < | ||
| + | diff -y file1 file2 | less | ||
| + | </ | ||
| + | * differences of files between directories | ||
| + | < | ||
| + | diff <(ls -a /dir1/) <(ls -a /dir 2/) | ||
| + | </ | ||
| + | or compare | ||
| + | < | ||
| + | comm <(ls -a /dir/) <(ls -a /dir2/) | ||
| + | </ | ||
| + | \\ | ||
| + | ====== Maintenance====== | ||
| * kill a process wholesale | * kill a process wholesale | ||
| < | < | ||
| Line 11: | Line 41: | ||
| < | < | ||
| cat /dev/null > modsec_audit.log</ | cat /dev/null > modsec_audit.log</ | ||
| + | See also "log rotate" | ||
| + | * remove everything else except... | ||
| + | < | ||
| + | rm -rf !(filename)</ | ||
| + | This works only if extglob is enabled. So | ||
| + | < | ||
| + | shopt -s extglob</ | ||
| + | \\ | ||
| + | ====== Compression====== | ||
| + | * lossless, multi-thread compression: | ||
| + | < | ||
| + | time xz -6ve -k --threads=0 < | ||
| + | </ | ||
| + | * compress multiple files | ||
| + | < | ||
| + | xz file1.txt file2.txt file3.txt | ||
| + | </ | ||
| + | * decompress | ||
| + | < | ||
| + | xz -d file.txt.xz | ||
| + | unxz file.txt.xz | ||
| + | </ | ||
| + | * test integrity | ||
| + | < | ||
| + | xz -tv < | ||
| + | </ | ||
| + | * concatenate multiple files | ||
| + | < | ||
| + | xzip -c file1.txt > files.xz | ||
| + | xzip -c file2.txt >> files.xz | ||
| + | </ | ||
| + | * concatenate, | ||
| + | < | ||
| + | xzcat test.txt.xz | ||
| + | test | ||
| + | | ||
| + | text | ||
| + | xzgrep exa test.txt.xz | ||
| + | | ||
| + | </ | ||
| + | |||
| + | ====== PHP====== | ||
| + | * View php config | ||
| + | < | ||
| + | php -r "print phpinfo();" | ||
| + | </ | ||
| + | or | ||
| + | < | ||
| + | php -i | grep in | ||
| + | </ | ||
| + | \\ | ||
| + | * reinstall all php packages | ||
| + | < | ||
| + | apt-get install --reinstall `dpkg -l | grep ' | ||
| + | </ | ||
| + | ====== Log Analysis====== | ||
| + | * limiting by date range | ||
| + | |||
| + | sed -n '/ | ||