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grep -r pattern
|
find in files
|
|
grep -i pattern
|
ignore case
|
|
grep -o pattern
|
print file:match
|
|
grep -h pattern
|
hide filename
|
|
grep -e pattern -e str2
|
multiples strings
|
|
grep -v pattern
|
complimenting line
|
|
grep -c pattern
|
print count
|
|
grep -n pattern
|
print # of matches
|
|
grep -w pattern
|
match whole pattern
|
|
find path -type f -name file
|
search only filenames
|
|
find path -type d -name dir
|
search only dir names
|
|
find path -mtime +7 -ls
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older than 7 days
|
|
find path -size -10M -ls
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less than 10 MB G/K
|
|
find path -exec grep -i str {} +
|
find in files
|
|
du -a dir
|
all files
|
|
du -h dir
|
human
|
|
du -m dir
|
in mb
|
|
du -c dir
|
sum
|
|
du -s dir
|
only sum
|
|
du --max-depth=1 dir
|
1 dir level deep
|
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seq 5 | xargs -I{} cmd
|
|
for i in {1..5};
do date; done |
|
for vm in web log db;
do uptime; done |
|
tar cvf f.tar f1 f2 f3 ...
|
create tar
|
|
tar xvf f.tar
|
extract tar
|
|
tar tvf f.tar
|
view tar
|
|
gzip -d filename.gz
|
extract gzip file
|
|
zip -r dir-name.zip <dir>
|
zip a dir
|
|
zip -d f.zip fname
|
delete file from zip
|
|
unzip -p zipfile.zip fname.txt
|
cat a file inside a zip file
|
|
sed -i'.bak' 's/old/new/g'
|
replace after backup
|
|
sed 's/ab/xy/g;s/de/pq/g'
|
multiple replaces
|
|
sed '10,20 s/abc/xyz/g'
|
replace in range
|
|
awk -F',' '{print $1"@"$3}'
|
print col1@col3
|
|
awk -F'\t' '/str/ {print $0}'
|
print line with str
|
|
awk -F: '{print $(NF-1)}'
|
print II col from right
|
|
awk -F'(,|:|;)' '{print }'
|
multiple separators
|
|
awk '$1 == 100 {print}'
|
comparison <, >, <=, >=
|
|
awk 'END {print NR " & " NF}'
|
print # of rows and cols
|
|
cmd 1>f.out
|
stdout to f.out
|
|
cmd 1>f.out
|
stderr to f.out
|
|
cmd &>f.out
|
stdout and stderr to f.out
|
|
sort -n
|
numeric
|
|
sort -r
|
reverse
|
|
uniq -c
|
print count
|
|
uniq -d
|
only dups
|
|
uniq -u
|
only unique
|
|
uniq -i
|
ignore case
|
|
cut -d ',' -f 1,3,5
|
print csv cols 1, 3 and 5
|
|
cut -d: -f 1 --compliment
|
print all cols except 1
|
|
cut -f -3
|
print cols 1, 2 and 3
|
|
cut -f 3-
|
print cols 3, 4 ...
|
|
tr old new
|
replace old with new
|
|
tr -s ' '
|
replace multiple space with single
|
|
curl -o file url
|
save to file
|
|
curi -I url
|
only header
|
|
curl -k https://url
|
ignore cert
|
|
curl -u <usr:pwd> url
|
username password
|
|
curl -w
|
add timeout
|
|
top
|
cpu mem info
|
|
free -m
|
mem status
|
|
lsof
|
open files
|
|
netstat
|
nw traffic
|
|
dig servername
|
dns
|
|
nslookup servername
|
dns
|
|
time cmd
|
exe time
|
|
watch cmd
|
auto exe
|
|
zip -d f.zip fname
|
delete file from zip
|
|
umount -l mnt
|
unmount when free
|
|
mount -a
|
mount all
|
|
ln -s file link
|
create symlink
|
|
| xargs cmd
|
throws what pipe gave after cmd
|
|
ps -ef
|
list processes
|
|
nc -l 1234
|
listen on 1234
|
|
nc 127.0.0.1 1234
|
send data to 1234
|
|
cp -p old new
|
cp permissions also
|
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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
