Tilmaamaha Hagid ee Isticmaal Talooyinka Sed ee Linux

Hordhac u ah taliska laydhka ee Linux

Nidaamka hawlgalka Linux wuxuu isticmaalaa amarada terminal si uu ula shaqeeyo nidaamka faylka kombiyuutarka. Isticmaalka asaasiga ah ee laydhka laydhka ah, oo ah mid gaaban oo loogu talagalay tifaftiraha akhristaha, waa inuu wax ka bedelo xariiq kasta oo fayl ama socod ah adoo beddelaya qaybo cayiman oo khadka ah. Waxay ka dhigtaa isbeddel qoraal aasaasi ah oo faylasha ama talobixin ka timid dhuumaha. Tusaale ahaan, sheeg inaad haysato foormo lagu magacaabo "songs.text" oo ka kooban khadadahan:

1, Justin Timberlake, Title 545, Price $ 6.30 2, Taylor Swift, Title 723, Qiimaha $ 7.90 3, Mick Jagger, Title 610, Lacagta $ 7.90 4, Lady Gaga, Title 118, Lacagta $ 6.30 5, Johnny Cash, Magaca 482, Qiimaha $ 6.50 6, Elvis Presley, Title 335, Qiimaha $ 6.30 7, John Lennon, Title 271, Qiimaha $ 7.90

Samaynta Beddelka Qoraalka Sed

Haddii aad rabto inaad bedesho dhammaan dhacdooyinka qiimaha ee $ 6.30 ilaa $ 7.30, waxaad sameyn kartaa isbeddelada adigoo isticmaalaya qandaraaska sedka sidan:

sed / 6.30 / 7.30 / 'songs.txt> songs2.txt

Xeerkani wuxuu sameeyaa isbeddelka wuxuuna qoraa faylka la bedelay "songs2.txt". Faylka soo saaruhu wuxuu ka kooban yahay:

1, Justin Timberlake, Title 545, Price $ 7.30 2, Taylor Swift, Title 723, Qiimaha $ 7.90 3, Mick Jagger, Title 610, Qiimaha $ 7.90 4, Lady Gaga, Title 118, Price $ 7.30 5, Johnny Cash, Magaca 482, Qiimaha $ 6.50 6, Elvis Presley, Title 335, Qiimaha $ 7.30 7, John Lennon, Title 271, Qiimaha $ 7.90

Haddii aad rabto inaad beddesho dhammaan dhacdooyinka "Lacag" oo leh "Qashin" waxaad isticmaashaa:

sed / Lacagta / Qashinka / Qashinka / 'songs.txt> songs2.txt

taas oo abuuraysa faylka leh content:

1, Justin Timberlake, Title 545, Price $ 7: 30 2, Taylor Swift, Title 723, Qiimaha $ 7.90 3, Mick Jagger, Title 610, Lacagta $ 7.90 4, Lady Gaga, Title 118, Price $ 7: 30 5, Johnny Trash, Title 482, Qiimaha $ 6.50 6, Elvis Presley, Title 335, Qiimaha $ 7: 30 7, John Lennon, Title 271, Qiimaha $ 7.90

Falanqaynta Taliska Sed

Sed ayaa sidoo kale loo adeegsadaa in lagu xereeyo khadadka faylka ama socodka. Tusaale ahaan, haddii aad rabto inaad aragto xarumaha "John," waxaad isticmaashaa:

sed -n '/ John / p' songs.txt> johns.txt

taas oo qoraysa khadadka soo socda si aad u buuxiso johns.txt:

5, Johnny Trash, Title 482, Qiimaha $ 6.50 7, John Lennon, Title 271, Qiimaha $ 7.90